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<h1>CachedIoAdapter Example</h1><script>
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</script><p>Let's look on an example at the benefits of CachedIoAdapter.</p>
<p>We will use the following methods to initiate write and read
from a database file:</p>
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<div class="FormattedSourceCode"><div class="fscHeader"><span class="fscFileName">CachedIOExample.cs: <span class="fscMemberName">SetObjects</span></span></div><div class="fscCode"><pre ID="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58"><div><!--
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--><span style="color: #008080;">01</span><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/None.gif" align="top"/><span style="color: #0000FF;">private</span><span style="color: #000000;"> </span><span style="color: #0000FF;">static</span><span style="color: #000000;"> </span><span style="color: #0000FF;">void</span><span style="color: #000000;"> SetObjects(IConfiguration configuration)
</span><span style="color: #008080;">02</span><span style="color: #000000;"><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_69_885_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_69_885_Open_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_69_885_Closed_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_69_885_Closed_Text').style.display='inline';"/><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_69_885_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_69_885_Closed_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_69_885_Open_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_69_885_Open_Text').style.display='inline';"/> </span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_69_885_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">...</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_69_885_Open_Text"><span style="color: #000000;">{
</span><span style="color: #008080;">03</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> File.Delete(Db4oFileName);
</span><span style="color: #008080;">04</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> IObjectContainer db </span><span style="color: #000000;">=</span><span style="color: #000000;"> Db4oFactory.OpenFile(configuration, Db4oFileName);
</span><span style="color: #008080;">05</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">try</span><span style="color: #000000;">
</span><span style="color: #008080;">06</span><span style="color: #000000;"><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_223_801_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_223_801_Open_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_223_801_Closed_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_223_801_Closed_Text').style.display='inline';"/><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_223_801_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedSubBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_223_801_Closed_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_223_801_Open_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_223_801_Open_Text').style.display='inline';"/> </span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_223_801_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">...</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_223_801_Open_Text"><span style="color: #000000;">{
</span><span style="color: #008080;">07</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> DateTime dt1 </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.UtcNow;
</span><span style="color: #008080;">08</span><span style="color: #000000;"><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_310_389_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_310_389_Open_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_310_389_Closed_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_310_389_Closed_Text').style.display='inline';"/><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_310_389_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedSubBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_310_389_Closed_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_310_389_Open_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_310_389_Open_Text').style.display='inline';"/> </span><span style="color: #0000FF;">for</span><span style="color: #000000;"> (</span><span style="color: #0000FF;">int</span><span style="color: #000000;"> i </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #800080;">0</span><span style="color: #000000;">; i</span><span style="color: #000000;"><</span><span style="color: #000000;"> </span><span style="color: #800080;">50000</span><span style="color: #000000;">; i</span><span style="color: #000000;">++</span><span style="color: #000000;">)</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_310_389_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">...</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_310_389_Open_Text"><span style="color: #000000;">{
</span><span style="color: #008080;">09</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> Pilot pilot </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #0000FF;">new</span><span style="color: #000000;"> Pilot(</span><span style="color: #800000;">"</span><span style="color: #800000;">Pilot #</span><span style="color: #800000;">"</span><span style="color: #000000;">+</span><span style="color: #000000;">i);
</span><span style="color: #008080;">10</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Set(pilot);
</span><span style="color: #008080;">11</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"/> }</span></span><span style="color: #000000;">
</span><span style="color: #008080;">12</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> DateTime dt2 </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.UtcNow;
</span><span style="color: #008080;">13</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> TimeSpan diff </span><span style="color: #000000;">=</span><span style="color: #000000;"> dt2 </span><span style="color: #000000;">-</span><span style="color: #000000;"> dt1;
</span><span style="color: #008080;">14</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> System.Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Time elapsed for setting objects =</span><span style="color: #800000;">"</span><span style="color: #000000;">+</span><span style="color: #000000;"> diff.TotalMilliseconds </span><span style="color: #000000;">+</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;"> ms</span><span style="color: #800000;">"</span><span style="color: #000000;">);
</span><span style="color: #008080;">15</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> dt1 </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.UtcNow;
</span><span style="color: #008080;">16</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Commit(); ;
</span><span style="color: #008080;">17</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> dt2 </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.UtcNow;
</span><span style="color: #008080;">18</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> diff </span><span style="color: #000000;">=</span><span style="color: #000000;"> dt2 </span><span style="color: #000000;">-</span><span style="color: #000000;"> dt1;
</span><span style="color: #008080;">19</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> System.Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Time elapsed for commit =</span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #000000;">+</span><span style="color: #000000;"> diff.TotalMilliseconds </span><span style="color: #000000;">+</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;"> ms</span><span style="color: #800000;">"</span><span style="color: #000000;">);
</span><span style="color: #008080;">20</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/>
</span><span style="color: #008080;">21</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"/> }</span></span><span style="color: #000000;">
</span><span style="color: #008080;">22</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">finally</span><span style="color: #000000;">
</span><span style="color: #008080;">23</span><span style="color: #000000;"><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_834_877_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_834_877_Open_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_834_877_Closed_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_834_877_Closed_Text').style.display='inline';"/><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_834_877_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedSubBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_834_877_Closed_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_834_877_Open_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_834_877_Open_Text').style.display='inline';"/> </span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_834_877_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">...</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_SetObjects_216_58_834_877_Open_Text"><span style="color: #000000;">{
</span><span style="color: #008080;">24</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Close();
</span><span style="color: #008080;">25</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockEnd.gif" align="top"/> }</span></span><span style="color: #000000;"> }</span></span></div></pre></div></div>
<div class="FormattedSourceCode"><div class="fscHeader"><span class="fscFileName">CachedIOExample.cs: <span class="fscMemberName">GetObjects</span></span></div><div class="fscCode"><pre ID="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58"><div><!--
Code highlighting produced by Actipro CodeHighlighter (freeware)
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--><span style="color: #008080;">01</span><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/None.gif" align="top"/><span style="color: #0000FF;">private</span><span style="color: #000000;"> </span><span style="color: #0000FF;">static</span><span style="color: #000000;"> </span><span style="color: #0000FF;">void</span><span style="color: #000000;"> GetObjects(IConfiguration configuration)
</span><span style="color: #008080;">02</span><span style="color: #000000;"><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_69_660_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_69_660_Open_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_69_660_Closed_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_69_660_Closed_Text').style.display='inline';"/><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_69_660_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_69_660_Closed_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_69_660_Open_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_69_660_Open_Text').style.display='inline';"/> </span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_69_660_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">...</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_69_660_Open_Text"><span style="color: #000000;">{
</span><span style="color: #008080;">03</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> IObjectContainer db </span><span style="color: #000000;">=</span><span style="color: #000000;"> Db4oFactory.OpenFile(configuration, Db4oFileName);
</span><span style="color: #008080;">04</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">try</span><span style="color: #000000;">
</span><span style="color: #008080;">05</span><span style="color: #000000;"><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_184_574_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_184_574_Open_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_184_574_Closed_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_184_574_Closed_Text').style.display='inline';"/><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_184_574_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedSubBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_184_574_Closed_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_184_574_Open_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_184_574_Open_Text').style.display='inline';"/> </span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_184_574_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">...</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_184_574_Open_Text"><span style="color: #000000;">{
</span><span style="color: #008080;">06</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> DateTime dt1 </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.UtcNow;
</span><span style="color: #008080;">07</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> IObjectSet result </span><span style="color: #000000;">=</span><span style="color: #000000;"> db.Get(</span><span style="color: #0000FF;">null</span><span style="color: #000000;">);
</span><span style="color: #008080;">08</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> DateTime dt2 </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.UtcNow;
</span><span style="color: #008080;">09</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> TimeSpan diff </span><span style="color: #000000;">=</span><span style="color: #000000;"> dt2 </span><span style="color: #000000;">-</span><span style="color: #000000;"> dt1;
</span><span style="color: #008080;">10</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> System.Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Time elapsed for the query =</span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #000000;">+</span><span style="color: #000000;"> diff.TotalMilliseconds </span><span style="color: #000000;">+</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;"> ms</span><span style="color: #800000;">"</span><span style="color: #000000;">);
</span><span style="color: #008080;">11</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Objects in the database: </span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #000000;">+</span><span style="color: #000000;"> result.Count);
</span><span style="color: #008080;">12</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"/> }</span></span><span style="color: #000000;">
</span><span style="color: #008080;">13</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">finally</span><span style="color: #000000;">
</span><span style="color: #008080;">14</span><span style="color: #000000;"><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_607_650_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_607_650_Open_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_607_650_Closed_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_607_650_Closed_Text').style.display='inline';"/><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_607_650_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedSubBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_607_650_Closed_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_607_650_Open_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_607_650_Open_Text').style.display='inline';"/> </span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_607_650_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">...</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_GetObjects_278_58_607_650_Open_Text"><span style="color: #000000;">{
</span><span style="color: #008080;">15</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Close();
</span><span style="color: #008080;">16</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top"/> }</span></span><span style="color: #000000;">
</span><span style="color: #008080;">17</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockEnd.gif" align="top"/> }</span></span></div></pre></div></div>
</span>
<span name="cs_wiki_filter" csw_filters="vb">
<div class="FormattedSourceCode"><div class="fscHeader"><span class="fscFileName">CachedIOExample.vb: <span class="fscMemberName">SetObjects</span></span></div><div class="fscCode"><pre ID="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_SetObjects_396_58"><div><!--
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--><span style="color: #008080;">01</span><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_SetObjects_396_58_15_1120_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_SetObjects_396_58_15_1120_Open_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_SetObjects_396_58_15_1120_Closed_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_SetObjects_396_58_15_1120_Closed_Text').style.display='inline';"/><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_SetObjects_396_58_15_1120_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_SetObjects_396_58_15_1120_Closed_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_SetObjects_396_58_15_1120_Open_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_SetObjects_396_58_15_1120_Open_Text').style.display='inline';"/><span style="color: #0000FF;">Private</span><span style="color: #000000;"> </span><span style="color: #0000FF;">Shared</span><span style="color: #000000;"> </span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_SetObjects_396_58_15_1120_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">Sub SetObjects()</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_SetObjects_396_58_15_1120_Open_Text"><span style="color: #0000FF;">Sub</span><span style="color: #000000;"> SetObjects(</span><span style="color: #0000FF;">ByVal</span><span style="color: #000000;"> configuration </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> IConfiguration)
</span><span style="color: #008080;">02</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> File.Delete(Db4oFileName)
</span><span style="color: #008080;">03</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> db </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> IObjectContainer </span><span style="color: #000000;">=</span><span style="color: #000000;"> Db4oFactory.OpenFile(configuration, Db4oFileName)
</span><span style="color: #008080;">04</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Try</span><span style="color: #000000;">
</span><span style="color: #008080;">05</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> dt1 </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> DateTime </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.UtcNow
</span><span style="color: #008080;">06</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> i </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> </span><span style="color: #0000FF;">Integer</span><span style="color: #000000;"> </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #800080;">0</span><span style="color: #000000;">
</span><span style="color: #008080;">07</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">While</span><span style="color: #000000;"> i </span><span style="color: #000000;"><</span><span style="color: #000000;"> </span><span style="color: #800080;">50000</span><span style="color: #000000;">
</span><span style="color: #008080;">08</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> pilot </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> Pilot </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #0000FF;">New</span><span style="color: #000000;"> Pilot(</span><span style="color: #800000;">"</span><span style="color: #800000;">Pilot #</span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #000000;">+</span><span style="color: #000000;"> i.ToString())
</span><span style="color: #008080;">09</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Set(pilot)
</span><span style="color: #008080;">10</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> System.Math.Min(System.Threading.Interlocked.Increment(i), i </span><span style="color: #000000;">-</span><span style="color: #000000;"> </span><span style="color: #800080;">1</span><span style="color: #000000;">)
</span><span style="color: #008080;">11</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">End</span><span style="color: #000000;"> </span><span style="color: #0000FF;">While</span><span style="color: #000000;">
</span><span style="color: #008080;">12</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> dt2 </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> DateTime </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.UtcNow
</span><span style="color: #008080;">13</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> diff </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> TimeSpan </span><span style="color: #000000;">=</span><span style="color: #000000;"> dt2 </span><span style="color: #000000;">-</span><span style="color: #000000;"> dt1
</span><span style="color: #008080;">14</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> System.Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Time elapsed for setting objects =</span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #000000;">+</span><span style="color: #000000;"> diff.TotalMilliseconds.ToString() </span><span style="color: #000000;">+</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;"> ms</span><span style="color: #800000;">"</span><span style="color: #000000;">)
</span><span style="color: #008080;">15</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> dt1 </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.UtcNow
</span><span style="color: #008080;">16</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Commit()
</span><span style="color: #008080;">17</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/>
</span><span style="color: #008080;">18</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> dt2 </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.UtcNow
</span><span style="color: #008080;">19</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> diff </span><span style="color: #000000;">=</span><span style="color: #000000;"> dt2 </span><span style="color: #000000;">-</span><span style="color: #000000;"> dt1
</span><span style="color: #008080;">20</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> System.Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Time elapsed for commit =</span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #000000;">+</span><span style="color: #000000;"> diff.TotalMilliseconds.ToString() </span><span style="color: #000000;">+</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;"> ms</span><span style="color: #800000;">"</span><span style="color: #000000;">)
</span><span style="color: #008080;">21</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Finally</span><span style="color: #000000;">
</span><span style="color: #008080;">22</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Close()
</span><span style="color: #008080;">23</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">End</span><span style="color: #000000;"> </span><span style="color: #0000FF;">Try</span><span style="color: #000000;">
</span><span style="color: #008080;">24</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockEnd.gif" align="top"/> </span><span style="color: #0000FF;">End Sub</span></span></div></pre></div></div>
<div class="FormattedSourceCode"><div class="fscHeader"><span class="fscFileName">CachedIOExample.vb: <span class="fscMemberName">GetObjects</span></span></div><div class="fscCode"><pre ID="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_GetObjects_456_58"><div><!--
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--><span style="color: #008080;">01</span><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_GetObjects_456_58_15_680_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_GetObjects_456_58_15_680_Open_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_GetObjects_456_58_15_680_Closed_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_GetObjects_456_58_15_680_Closed_Text').style.display='inline';"/><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_GetObjects_456_58_15_680_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_GetObjects_456_58_15_680_Closed_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_GetObjects_456_58_15_680_Open_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_GetObjects_456_58_15_680_Open_Text').style.display='inline';"/><span style="color: #0000FF;">Private</span><span style="color: #000000;"> </span><span style="color: #0000FF;">Shared</span><span style="color: #000000;"> </span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_GetObjects_456_58_15_680_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">Sub GetObjects()</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_GetObjects_456_58_15_680_Open_Text"><span style="color: #0000FF;">Sub</span><span style="color: #000000;"> GetObjects(</span><span style="color: #0000FF;">ByVal</span><span style="color: #000000;"> configuration </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> IConfiguration)
</span><span style="color: #008080;">02</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> db </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> IObjectContainer </span><span style="color: #000000;">=</span><span style="color: #000000;"> Db4oFactory.OpenFile(configuration, Db4oFileName)
</span><span style="color: #008080;">03</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Try</span><span style="color: #000000;">
</span><span style="color: #008080;">04</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> dt1 </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> DateTime </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.UtcNow
</span><span style="color: #008080;">05</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> result </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> IObjectSet </span><span style="color: #000000;">=</span><span style="color: #000000;"> db.Get(</span><span style="color: #0000FF;">Nothing</span><span style="color: #000000;">)
</span><span style="color: #008080;">06</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> dt2 </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> DateTime </span><span style="color: #000000;">=</span><span style="color: #000000;"> DateTime.UtcNow
</span><span style="color: #008080;">07</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> diff </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> TimeSpan </span><span style="color: #000000;">=</span><span style="color: #000000;"> dt2 </span><span style="color: #000000;">-</span><span style="color: #000000;"> dt1
</span><span style="color: #008080;">08</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> System.Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Time elapsed for the query =</span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #000000;">+</span><span style="color: #000000;"> diff.TotalMilliseconds.ToString() </span><span style="color: #000000;">+</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;"> ms</span><span style="color: #800000;">"</span><span style="color: #000000;">)
</span><span style="color: #008080;">09</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Objects in the database: </span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #000000;">+</span><span style="color: #000000;"> result.Count.ToString())
</span><span style="color: #008080;">10</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Finally</span><span style="color: #000000;">
</span><span style="color: #008080;">11</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> db.Close()
</span><span style="color: #008080;">12</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">End</span><span style="color: #000000;"> </span><span style="color: #0000FF;">Try</span><span style="color: #000000;">
</span><span style="color: #008080;">13</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockEnd.gif" align="top"/> </span><span style="color: #0000FF;">End Sub</span></span></div></pre></div></div>
</span>
<p>Try to execute the code with the default settings and write
down the results. Then configure CachedIoAdapter using the code below and test
the performance again:</p>
<span name="cs_wiki_filter" csw_filters="cs">
<div class="FormattedSourceCode"><div class="fscHeader"><span class="fscFileName">CachedIOExample.cs: <span class="fscMemberName">ConfigureCache</span></span></div><div class="fscCode"><pre ID="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_ConfigureCache_752_62"><div><!--
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--><span style="color: #008080;">1</span><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_ConfigureCache_752_62_46_423_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_ConfigureCache_752_62_46_423_Open_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_ConfigureCache_752_62_46_423_Closed_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_ConfigureCache_752_62_46_423_Closed_Text').style.display='inline';"/><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_ConfigureCache_752_62_46_423_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_ConfigureCache_752_62_46_423_Closed_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_ConfigureCache_752_62_46_423_Open_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_ConfigureCache_752_62_46_423_Open_Text').style.display='inline';"/><span style="color: #0000FF;">private</span><span style="color: #000000;"> </span><span style="color: #0000FF;">static</span><span style="color: #000000;"> IConfiguration ConfigureCache()</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_ConfigureCache_752_62_46_423_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">...</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdaptercachedIoCS.ZipsCachedIOExample.Cs_CachedIOExample.Cs_ConfigureCache_752_62_46_423_Open_Text"><span style="color: #000000;">{
</span><span style="color: #008080;">2</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> System.Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Setting up cached io adapter</span><span style="color: #800000;">"</span><span style="color: #000000;">);
</span><span style="color: #008080;">3</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #008000;">//</span><span style="color: #008000;"> new cached IO adapter with 256 pages 1024 bytes each</span><span style="color: #008000;">
</span><span style="color: #008080;">4</span><span style="color: #008000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/></span><span style="color: #000000;"> CachedIoAdapter adapter </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #0000FF;">new</span><span style="color: #000000;"> CachedIoAdapter(</span><span style="color: #0000FF;">new</span><span style="color: #000000;"> RandomAccessFileAdapter(), </span><span style="color: #800080;">1024</span><span style="color: #000000;">, </span><span style="color: #800080;">256</span><span style="color: #000000;">);
</span><span style="color: #008080;">5</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> IConfiguration configuration </span><span style="color: #000000;">=</span><span style="color: #000000;"> Db4oFactory.NewConfiguration();
</span><span style="color: #008080;">6</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> configuration.Io(adapter);
</span><span style="color: #008080;">7</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">return</span><span style="color: #000000;"> configuration;
</span><span style="color: #008080;">8</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockEnd.gif" align="top"/> }</span></span></div></pre></div></div>
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<div class="FormattedSourceCode"><div class="fscHeader"><span class="fscFileName">CachedIOExample.vb: <span class="fscMemberName">ConfigureCache</span></span></div><div class="fscCode"><pre ID="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_ConfigureCache_874_62"><div><!--
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--><span style="color: #008080;">1</span><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_ConfigureCache_874_62_15_472_Open_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockStart.gif" align="top" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_ConfigureCache_874_62_15_472_Open_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_ConfigureCache_874_62_15_472_Closed_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_ConfigureCache_874_62_15_472_Closed_Text').style.display='inline';"/><img id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_ConfigureCache_874_62_15_472_Closed_Image" src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ContractedBlock.gif" align="top" style="display: none;" onClick="this.style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_ConfigureCache_874_62_15_472_Closed_Text').style.display='none'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_ConfigureCache_874_62_15_472_Open_Image').style.display='inline'; document.getElementById('ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_ConfigureCache_874_62_15_472_Open_Text').style.display='inline';"/><span style="color: #0000FF;">Private</span><span style="color: #000000;"> </span><span style="color: #0000FF;">Shared</span><span style="color: #000000;"> </span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_ConfigureCache_874_62_15_472_Closed_Text" style="border: solid 1px #808080; background-color: #FFFFFF; display: none;">Function ConfigureCache()</span><span id="ResourcesReferenceImplementation_StrategiesIO_AdapterCachedIoAdapterCachedIoVB.ZipsCachedIOExample.Vb_CachedIOExample.Vb_ConfigureCache_874_62_15_472_Open_Text"><span style="color: #0000FF;">Function</span><span style="color: #000000;"> ConfigureCache() </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> IConfiguration
</span><span style="color: #008080;">2</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> System.Console.WriteLine(</span><span style="color: #800000;">"</span><span style="color: #800000;">Setting up cached io adapter</span><span style="color: #800000;">"</span><span style="color: #000000;">)
</span><span style="color: #008080;">3</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> configuration </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> IConfiguration </span><span style="color: #000000;">=</span><span style="color: #000000;"> Db4oFactory.NewConfiguration()
</span><span style="color: #008080;">4</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #008000;">'</span><span style="color: #008000;"> new cached IO adapter with 256 pages 1024 bytes each</span><span style="color: #008000;">
</span><span style="color: #008080;">5</span><span style="color: #008000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/></span><span style="color: #000000;"> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> adapter </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> CachedIoAdapter </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #0000FF;">New</span><span style="color: #000000;"> CachedIoAdapter(</span><span style="color: #0000FF;">New</span><span style="color: #000000;"> RandomAccessFileAdapter, </span><span style="color: #800080;">1024</span><span style="color: #000000;">, </span><span style="color: #800080;">256</span><span style="color: #000000;">)
</span><span style="color: #008080;">6</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> configuration.Io(adapter)
</span><span style="color: #008080;">7</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/InBlock.gif" align="top"/> </span><span style="color: #0000FF;">Return</span><span style="color: #000000;"> configuration
</span><span style="color: #008080;">8</span><span style="color: #000000;"><img src="../../../../Utility/ActiPro.CodeHighligher/OutliningIndicators/ExpandedBlockEnd.gif" align="top"/> </span><span style="color: #0000FF;">End Function</span></span></div></pre></div></div>
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<p>The performance delta will be more significant for more
objects and bigger cache memory.</p></div>
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This revision (8) was last Modified 2007-02-01T20:46:04 by Tetyana.
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