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<div class="subTitle">com.sleepycat.bind.serial</div>
<h2 title="Class TupleSerialKeyCreator" class="title">Class TupleSerialKeyCreator<D></h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li><a href="../../../../com/sleepycat/bind/tuple/TupleBase.html" title="class in com.sleepycat.bind.tuple">com.sleepycat.bind.tuple.TupleBase</a></li>
<li>
<ul class="inheritance">
<li>com.sleepycat.bind.serial.TupleSerialKeyCreator<D></li>
</ul>
</li>
</ul>
</li>
</ul>
<div class="description">
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../com/sleepycat/db/ForeignKeyNullifier.html" title="interface in com.sleepycat.db">ForeignKeyNullifier</a>, <a href="../../../../com/sleepycat/db/SecondaryKeyCreator.html" title="interface in com.sleepycat.db">SecondaryKeyCreator</a></dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../com/sleepycat/bind/serial/TupleSerialMarshalledKeyCreator.html" title="class in com.sleepycat.bind.serial">TupleSerialMarshalledKeyCreator</a></dd>
</dl>
<hr>
<br>
<pre>public abstract class <span class="strong">TupleSerialKeyCreator<D></span>
extends <a href="../../../../com/sleepycat/bind/tuple/TupleBase.html" title="class in com.sleepycat.bind.tuple">TupleBase</a>
implements <a href="../../../../com/sleepycat/db/SecondaryKeyCreator.html" title="interface in com.sleepycat.db">SecondaryKeyCreator</a>, <a href="../../../../com/sleepycat/db/ForeignKeyNullifier.html" title="interface in com.sleepycat.db">ForeignKeyNullifier</a></pre>
<div class="block">A abstract key creator that uses a tuple key and a serial data entry. This
class takes care of serializing and deserializing the data entry, and
converting the key entry to/from <a href="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple"><code>TupleInput</code></a> and <a href="../../../../com/sleepycat/bind/tuple/TupleOutput.html" title="class in com.sleepycat.bind.tuple"><code>TupleOutput</code></a>
objects.
The following abstract method must be implemented by a concrete subclass
to create the index key using these objects
<ul>
<li> <a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html#createSecondaryKey(com.sleepycat.bind.tuple.TupleInput,%20D,%20com.sleepycat.bind.tuple.TupleOutput)"><code>createSecondaryKey(TupleInput,Object,TupleOutput)</code></a> </li>
</ul>
<p>If <a href="../../../../com/sleepycat/db/ForeignKeyDeleteAction.html#NULLIFY"><code>ForeignKeyDeleteAction.NULLIFY</code></a> was
specified when opening the secondary database, the following method must be
overridden to nullify the foreign index key. If NULLIFY was not specified,
this method need not be overridden.</p>
<ul>
<li> <a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html#nullifyForeignKey(D)"><code>nullifyForeignKey(Object)</code></a> </li>
</ul></div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="SerialBinding.html#evolution">Class Evolution</a></dd></dl>
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<h3>Field Summary</h3>
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<caption><span>Fields</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="class in com.sleepycat.bind.serial">SerialBinding</a><<a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html" title="type parameter in TupleSerialKeyCreator">D</a>></code></td>
<td class="colLast"><code><strong><a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html#dataBinding">dataBinding</a></strong></code> </td>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><strong><a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html#TupleSerialKeyCreator(com.sleepycat.bind.serial.ClassCatalog,%20java.lang.Class)">TupleSerialKeyCreator</a></strong>(<a href="../../../../com/sleepycat/bind/serial/ClassCatalog.html" title="interface in com.sleepycat.bind.serial">ClassCatalog</a> classCatalog,
java.lang.Class<<a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html" title="type parameter in TupleSerialKeyCreator">D</a>> dataClass)</code>
<div class="block">Creates a tuple-serial key creator.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html#TupleSerialKeyCreator(com.sleepycat.bind.serial.SerialBinding)">TupleSerialKeyCreator</a></strong>(<a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="class in com.sleepycat.bind.serial">SerialBinding</a><<a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html" title="type parameter in TupleSerialKeyCreator">D</a>> dataBinding)</code>
<div class="block">Creates a tuple-serial key creator.</div>
</td>
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<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html#createSecondaryKey(com.sleepycat.db.SecondaryDatabase,%20com.sleepycat.db.DatabaseEntry,%20com.sleepycat.db.DatabaseEntry,%20com.sleepycat.db.DatabaseEntry)">createSecondaryKey</a></strong>(<a href="../../../../com/sleepycat/db/SecondaryDatabase.html" title="class in com.sleepycat.db">SecondaryDatabase</a> db,
<a href="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</a> primaryKeyEntry,
<a href="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</a> dataEntry,
<a href="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</a> indexKeyEntry)</code>
<div class="block">Creates a secondary key entry, given a primary key and data entry.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>abstract boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html#createSecondaryKey(com.sleepycat.bind.tuple.TupleInput,%20D,%20com.sleepycat.bind.tuple.TupleOutput)">createSecondaryKey</a></strong>(<a href="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple">TupleInput</a> primaryKeyInput,
<a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html" title="type parameter in TupleSerialKeyCreator">D</a> dataInput,
<a href="../../../../com/sleepycat/bind/tuple/TupleOutput.html" title="class in com.sleepycat.bind.tuple">TupleOutput</a> indexKeyOutput)</code>
<div class="block">Creates the index key entry from primary key tuple entry and
deserialized data entry.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html" title="type parameter in TupleSerialKeyCreator">D</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html#nullifyForeignKey(D)">nullifyForeignKey</a></strong>(<a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html" title="type parameter in TupleSerialKeyCreator">D</a> data)</code>
<div class="block">Clears the index key in the deserialized data entry.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html#nullifyForeignKey(com.sleepycat.db.SecondaryDatabase,%20com.sleepycat.db.DatabaseEntry)">nullifyForeignKey</a></strong>(<a href="../../../../com/sleepycat/db/SecondaryDatabase.html" title="class in com.sleepycat.db">SecondaryDatabase</a> db,
<a href="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</a> dataEntry)</code>
<div class="block">Sets the foreign key reference to null in the datum of the primary
database.</div>
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<h3>Methods inherited from class com.sleepycat.bind.tuple.<a href="../../../../com/sleepycat/bind/tuple/TupleBase.html" title="class in com.sleepycat.bind.tuple">TupleBase</a></h3>
<code><a href="../../../../com/sleepycat/bind/tuple/TupleBase.html#entryToInput(com.sleepycat.db.DatabaseEntry)">entryToInput</a>, <a href="../../../../com/sleepycat/bind/tuple/TupleBase.html#getTupleBufferSize()">getTupleBufferSize</a>, <a href="../../../../com/sleepycat/bind/tuple/TupleBase.html#getTupleOutput(E)">getTupleOutput</a>, <a href="../../../../com/sleepycat/bind/tuple/TupleBase.html#inputToEntry(com.sleepycat.bind.tuple.TupleInput,%20com.sleepycat.db.DatabaseEntry)">inputToEntry</a>, <a href="../../../../com/sleepycat/bind/tuple/TupleBase.html#newOutput()">newOutput</a>, <a href="../../../../com/sleepycat/bind/tuple/TupleBase.html#newOutput(byte[])">newOutput</a>, <a href="../../../../com/sleepycat/bind/tuple/TupleBase.html#outputToEntry(com.sleepycat.bind.tuple.TupleOutput,%20com.sleepycat.db.DatabaseEntry)">outputToEntry</a>, <a href="../../../../com/sleepycat/bind/tuple/TupleBase.html#setTupleBufferSize(int)">setTupleBufferSize</a></code></li>
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<h3>Methods inherited from class java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h3>Field Detail</h3>
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<h4>dataBinding</h4>
<pre>protected <a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="class in com.sleepycat.bind.serial">SerialBinding</a><<a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html" title="type parameter in TupleSerialKeyCreator">D</a>> dataBinding</pre>
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<h3>Constructor Detail</h3>
<a name="TupleSerialKeyCreator(com.sleepycat.bind.serial.ClassCatalog, java.lang.Class)">
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<h4>TupleSerialKeyCreator</h4>
<pre>public TupleSerialKeyCreator(<a href="../../../../com/sleepycat/bind/serial/ClassCatalog.html" title="interface in com.sleepycat.bind.serial">ClassCatalog</a> classCatalog,
java.lang.Class<<a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html" title="type parameter in TupleSerialKeyCreator">D</a>> dataClass)</pre>
<div class="block">Creates a tuple-serial key creator.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>classCatalog</code> - is the catalog to hold shared class information and
for a database should be a <a href="../../../../com/sleepycat/bind/serial/StoredClassCatalog.html" title="class in com.sleepycat.bind.serial"><code>StoredClassCatalog</code></a>.</dd><dd><code>dataClass</code> - is the data base class.</dd></dl>
</li>
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<h4>TupleSerialKeyCreator</h4>
<pre>public TupleSerialKeyCreator(<a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="class in com.sleepycat.bind.serial">SerialBinding</a><<a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html" title="type parameter in TupleSerialKeyCreator">D</a>> dataBinding)</pre>
<div class="block">Creates a tuple-serial key creator.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>dataBinding</code> - is the data binding.</dd></dl>
</li>
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<h3>Method Detail</h3>
<a name="createSecondaryKey(com.sleepycat.db.SecondaryDatabase, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry)">
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<h4>createSecondaryKey</h4>
<pre>public boolean createSecondaryKey(<a href="../../../../com/sleepycat/db/SecondaryDatabase.html" title="class in com.sleepycat.db">SecondaryDatabase</a> db,
<a href="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</a> primaryKeyEntry,
<a href="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</a> dataEntry,
<a href="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</a> indexKeyEntry)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../com/sleepycat/db/SecondaryKeyCreator.html#createSecondaryKey(com.sleepycat.db.SecondaryDatabase,%20com.sleepycat.db.DatabaseEntry,%20com.sleepycat.db.DatabaseEntry,%20com.sleepycat.db.DatabaseEntry)">SecondaryKeyCreator</a></code></strong></div>
<div class="block">Creates a secondary key entry, given a primary key and data entry.
<p>
A secondary key may be derived from the primary key, primary data, or a
combination of the primary key and data. For secondary keys that are
optional, the key creator method may return false and the key/data pair
will not be indexed. To ensure the integrity of a secondary database the
key creator method must always return the same result for a given set of
input parameters.
<p></div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../com/sleepycat/db/SecondaryKeyCreator.html#createSecondaryKey(com.sleepycat.db.SecondaryDatabase,%20com.sleepycat.db.DatabaseEntry,%20com.sleepycat.db.DatabaseEntry,%20com.sleepycat.db.DatabaseEntry)">createSecondaryKey</a></code> in interface <code><a href="../../../../com/sleepycat/db/SecondaryKeyCreator.html" title="interface in com.sleepycat.db">SecondaryKeyCreator</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>db</code> - the database to which the secondary key will be added.
This parameter is passed for informational purposes but is not commonly
used.
<p></dd><dd><code>primaryKeyEntry</code> - the primary key entry. This parameter must not be modified
by this method.
<p></dd><dd><code>dataEntry</code> - the primary data entry. This parameter must not be modified
by this method.
<p></dd><dd><code>indexKeyEntry</code> - the secondary key created by this method.
<p></dd>
<dt><span class="strong">Returns:</span></dt><dd>true if a key was created, or false to indicate that the key is
not present.
<p></dd></dl>
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<h4>nullifyForeignKey</h4>
<pre>public boolean nullifyForeignKey(<a href="../../../../com/sleepycat/db/SecondaryDatabase.html" title="class in com.sleepycat.db">SecondaryDatabase</a> db,
<a href="../../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</a> dataEntry)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../com/sleepycat/db/ForeignKeyNullifier.html#nullifyForeignKey(com.sleepycat.db.SecondaryDatabase,%20com.sleepycat.db.DatabaseEntry)">ForeignKeyNullifier</a></code></strong></div>
<div class="block">Sets the foreign key reference to null in the datum of the primary
database.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../com/sleepycat/db/ForeignKeyNullifier.html#nullifyForeignKey(com.sleepycat.db.SecondaryDatabase,%20com.sleepycat.db.DatabaseEntry)">nullifyForeignKey</a></code> in interface <code><a href="../../../../com/sleepycat/db/ForeignKeyNullifier.html" title="interface in com.sleepycat.db">ForeignKeyNullifier</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>db</code> - the database in which the foreign key integrity
constraint is defined. This parameter is passed for informational
purposes but is not commonly used.</dd><dd><code>dataEntry</code> - the existing primary datum in which the foreign key
reference should be set to null. This parameter should be updated by
this method if it returns true.</dd>
<dt><span class="strong">Returns:</span></dt><dd>true if the datum was modified, or false to indicate that the
key is not present.</dd></dl>
</li>
</ul>
<a name="createSecondaryKey(com.sleepycat.bind.tuple.TupleInput,java.lang.Object,com.sleepycat.bind.tuple.TupleOutput)">
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<h4>createSecondaryKey</h4>
<pre>public abstract boolean createSecondaryKey(<a href="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple">TupleInput</a> primaryKeyInput,
<a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html" title="type parameter in TupleSerialKeyCreator">D</a> dataInput,
<a href="../../../../com/sleepycat/bind/tuple/TupleOutput.html" title="class in com.sleepycat.bind.tuple">TupleOutput</a> indexKeyOutput)</pre>
<div class="block">Creates the index key entry from primary key tuple entry and
deserialized data entry.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>primaryKeyInput</code> - is the <a href="../../../../com/sleepycat/bind/tuple/TupleInput.html" title="class in com.sleepycat.bind.tuple"><code>TupleInput</code></a> for the primary key
entry, or null if no primary key entry is used to construct the index
key.</dd><dd><code>dataInput</code> - is the deserialized data entry, or null if no data
entry is used to construct the index key.</dd><dd><code>indexKeyOutput</code> - is the destination index key tuple. For index
keys which are optionally present, no tuple entry should be output to
indicate that the key is not present or null.</dd>
<dt><span class="strong">Returns:</span></dt><dd>true if a key was created, or false to indicate that the key is
not present.</dd></dl>
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<h4>nullifyForeignKey</h4>
<pre>public <a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html" title="type parameter in TupleSerialKeyCreator">D</a> nullifyForeignKey(<a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html" title="type parameter in TupleSerialKeyCreator">D</a> data)</pre>
<div class="block">Clears the index key in the deserialized data entry.
<p>On entry the data parameter contains the index key to be cleared. It
should be changed by this method such that <a href="../../../../com/sleepycat/bind/serial/TupleSerialKeyCreator.html#createSecondaryKey(com.sleepycat.db.SecondaryDatabase,%20com.sleepycat.db.DatabaseEntry,%20com.sleepycat.db.DatabaseEntry,%20com.sleepycat.db.DatabaseEntry)"><code>createSecondaryKey(com.sleepycat.db.SecondaryDatabase, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry)</code></a>
will return false. Other fields in the data object should remain
unchanged.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>data</code> - is the source and destination deserialized data
entry.</dd>
<dt><span class="strong">Returns:</span></dt><dd>the destination data object, or null to indicate that the
key is not present and no change is necessary. The data returned may
be the same object passed as the data parameter or a newly created
object.</dd></dl>
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