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<h1><a name="kanchor43"></a>File Configuration</h1>
<p>The file-configuration contains all the configuration-settings which are related to file access. It can be set in the db4o-embedded-container or on the db4o-server. All the file configuration is accessible via the file-<span class="Primarygetter">property</span> on the configuration-object.</p>
<h2>Overview</h2>
<p>Here's a overview over all file configuration-settings which you can change:</p>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep">Can not change <span class="MCTextPopup"><a href="javascript:void(0);" class="popupHead_0" onclick="FMCTextPopup( event, this ); return false;" style="font-size: 0.9em; vertical-align: super">1</a><span class="MCTextPopupBody" style="display: none; ">This setting has to be set the first time when the database is created. You cannot change is for an existing database.</span></span></td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd">Only useful for recovery <![CDATA[ ]]><span class="MCTextPopup"><a href="javascript:void(0);" class="popupHead_0" onclick="FMCTextPopup( event, this ); return false;" style="font-size: 0.9em; vertical-align: super">2</a><span class="MCTextPopupBody" style="display: none; ">This setting is only useful when you try to recover a corrupted database file.</span></span></td>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"><strong><a href="file/async_sync.htm">AsynchronousSync</a></strong>: Enables asynchronous commits.</td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd"> </td>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"><strong><a href="file/blob_path.htm">BlobPath</a></strong>: Specify where blobs are stored.</td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd"> </td>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"><strong><a href="file/block_size.htm">BlockSize</a></strong>: Set the block-size of the database. Larger Blocks allow larger databases.</td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep">Yes</td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd"> </td>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"><strong><a href="file/database_growth_size.htm">DatabaseGrowthSize</a></strong>: Set the grow step size when the database-file is to small.</td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd"> </td>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"><strong><a href="file/disable_commit_recovery.htm">DisableCommitRecovery</a></strong>: Disable the commit-recovery.</td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd">Yes</td>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"><strong><a href="file/freespace_configuration.htm">Freespace</a></strong>: Configure the free-space system.</td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd"> </td>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"><strong><a href="file/generate_uuids.htm">GenerateUUIDs</a></strong>: Configure to generate UUIDs for objects.</td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd"> </td>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"><strong><strike>GenerateVersionNumbers</strike></strong>: Deprecated. Generate <a href="file/generate_timestamps.htm">commit timestamps</a> instead. </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd"> </td>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"><strong><a href="file/lock_database.htm">LockDatabaseFile</a></strong>: Enable/disable the database file lock.</td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd"> </td>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"><strong><a href="file/read_only.htm">ReadOnly</a></strong>: Set the database to read only mode.</td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd"> </td>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"><strong><a href="file/recover_mode.htm">RecoveryMode</a></strong>: Set the database to a recovery mode.</td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd">Yes</td>
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<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"><strong><a href="file/reserve_storage_space.htm">ReserveStorageSpace</a></strong>: Reserve storage-space up front.</td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowSep_ColEnd"> </td>
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<td class="TableStyle_Basic_Body_0_0_RowEnd_ColSep"><strong><a href="file/storage.htm">Storage</a></strong>: Configure the storage system.</td>
<td class="TableStyle_Basic_Body_0_0_RowEnd_ColSep"> </td>
<td class="TableStyle_Basic_Body_0_0_RowEnd_ColEnd"> </td>
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