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<div class="aboutLanguage"><b>Berkeley DB Java Edition</b><br><font size=\"-1\"> version 7.5.11</font>
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<!-- ======== START OF CLASS DATA ======== -->
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<div class="subTitle">com.sleepycat.bind.serial</div>
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<h2 title="Class SerialBinding" class="title">Class SerialBinding<E></h2>
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<li><a href="../../../../com/sleepycat/bind/serial/SerialBase.html" title="class in com.sleepycat.bind.serial">com.sleepycat.bind.serial.SerialBase</a></li>
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<li>com.sleepycat.bind.serial.SerialBinding<E></li>
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<dl>
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<dt>All Implemented Interfaces:</dt>
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<dd><a href="../../../../com/sleepycat/bind/EntryBinding.html" title="interface in com.sleepycat.bind">EntryBinding</a><E></dd>
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<br>
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<pre>public class <span class="typeNameLabel">SerialBinding<E></span>
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extends <a href="../../../../com/sleepycat/bind/serial/SerialBase.html" title="class in com.sleepycat.bind.serial">SerialBase</a>
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implements <a href="../../../../com/sleepycat/bind/EntryBinding.html" title="interface in com.sleepycat.bind">EntryBinding</a><E></pre>
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<div class="block">A concrete <code>EntryBinding</code> that treats a key or data entry as
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a serialized object.
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<p>This binding stores objects in serialized object format. The
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deserialized objects are returned by the binding, and their
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<code>Class</code> must implement the <code>Serializable</code>
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interface.</p>
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<p>For key bindings, a tuple binding is usually a better choice than a
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serial binding. A tuple binding gives a reasonable sort order, and works
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with comparators in all cases -- see below.</p>
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<p><em>WARNING:</em> SerialBinding should not be used with Berkeley DB Java
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Edition for key bindings, when a custom comparator is used. In JE,
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comparators are instantiated and called internally at times when databases
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are not accessible. Because serial bindings depend on the class catalog
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database, a serial binding cannot be used during these times. An attempt
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to use a serial binding with a custom comparator will result in a
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NullPointerException during environment open or close.</p>
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<p><a name="evolution"><strong>Class Evolution</strong></a></p>
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<p><code>SerialBinding</code> and other classes in this package use standard Java
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serialization and all rules of Java serialization apply. This includes the
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rules for class evolution. Once an instance of a class is stored, the class
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must maintain its <code>serialVersionUID</code> and follow the rules defined in
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the Java specification. To use a new incompatible version of a class, a
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different <a href="../../../../com/sleepycat/bind/serial/ClassCatalog.html" title="interface in com.sleepycat.bind.serial"><code>ClassCatalog</code></a> must be used or the class catalog database
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must be truncated.</p>
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<p>If more advanced class evolution features are required, consider using
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the <a href="../../../../com/sleepycat/persist/evolve/package-summary.html"><code>Direct Persistence Layer</code></a>.</p></div>
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<dl>
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<dt><span class="simpleTagLabel">Author:</span></dt>
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<dd>Mark Hayes</dd>
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</dl>
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</li>
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<h3>Constructor Summary</h3>
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<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
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<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colOne" scope="col">Constructor and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/bind/serial/SerialBinding.html#SerialBinding-com.sleepycat.bind.serial.ClassCatalog-java.lang.Class-">SerialBinding</a></span>(<a href="../../../../com/sleepycat/bind/serial/ClassCatalog.html" title="interface in com.sleepycat.bind.serial">ClassCatalog</a> classCatalog,
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java.lang.Class<<a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="type parameter in SerialBinding">E</a>> baseClass)</code>
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<div class="block">Creates a serial binding.</div>
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</td>
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</tr>
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</table>
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<!-- ========== METHOD SUMMARY =========== -->
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<h3>Method Summary</h3>
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<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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</tr>
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<tr id="i0" class="altColor">
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<td class="colFirst"><code><a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="type parameter in SerialBinding">E</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/bind/serial/SerialBinding.html#entryToObject-com.sleepycat.je.DatabaseEntry-">entryToObject</a></span>(<a href="../../../../com/sleepycat/je/DatabaseEntry.html" title="class in com.sleepycat.je">DatabaseEntry</a> entry)</code>
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<div class="block">Deserialize an object from an entry buffer.</div>
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</td>
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</tr>
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<tr id="i1" class="rowColor">
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<td class="colFirst"><code>java.lang.Class<<a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="type parameter in SerialBinding">E</a>></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/bind/serial/SerialBinding.html#getBaseClass--">getBaseClass</a></span>()</code>
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<div class="block">Returns the base class for this binding.</div>
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</td>
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</tr>
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<tr id="i2" class="altColor">
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<td class="colFirst"><code>java.lang.ClassLoader</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/bind/serial/SerialBinding.html#getClassLoader--">getClassLoader</a></span>()</code>
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<div class="block">Returns the class loader to be used during deserialization, or null if a
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default class loader should be used.</div>
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</td>
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</tr>
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<tr id="i3" class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../../com/sleepycat/bind/serial/SerialBinding.html#objectToEntry-E-com.sleepycat.je.DatabaseEntry-">objectToEntry</a></span>(<a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="type parameter in SerialBinding">E</a> object,
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<a href="../../../../com/sleepycat/je/DatabaseEntry.html" title="class in com.sleepycat.je">DatabaseEntry</a> entry)</code>
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<div class="block">Serialize an object into an entry buffer.</div>
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</td>
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</tr>
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</table>
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<li class="blockList"><a name="methods.inherited.from.class.com.sleepycat.bind.serial.SerialBase">
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<!-- -->
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</a>
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<h3>Methods inherited from class com.sleepycat.bind.serial.<a href="../../../../com/sleepycat/bind/serial/SerialBase.html" title="class in com.sleepycat.bind.serial">SerialBase</a></h3>
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<code><a href="../../../../com/sleepycat/bind/serial/SerialBase.html#getSerialBufferSize--">getSerialBufferSize</a>, <a href="../../../../com/sleepycat/bind/serial/SerialBase.html#getSerialOutput-java.lang.Object-">getSerialOutput</a>, <a href="../../../../com/sleepycat/bind/serial/SerialBase.html#setSerialBufferSize-int-">setSerialBufferSize</a></code></li>
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</ul>
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</a>
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<h3>Methods inherited from class java.lang.Object</h3>
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<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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</ul>
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</li>
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</ul>
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</li>
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</ul>
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</div>
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<div class="details">
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<ul class="blockList">
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<ul class="blockList">
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<li class="blockList"><a name="constructor.detail">
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<!-- -->
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</a>
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<h3>Constructor Detail</h3>
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<a name="SerialBinding-com.sleepycat.bind.serial.ClassCatalog-java.lang.Class-">
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<!-- -->
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<h4>SerialBinding</h4>
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<pre>public SerialBinding(<a href="../../../../com/sleepycat/bind/serial/ClassCatalog.html" title="interface in com.sleepycat.bind.serial">ClassCatalog</a> classCatalog,
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java.lang.Class<<a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="type parameter in SerialBinding">E</a>> baseClass)</pre>
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<div class="block">Creates a serial binding.</div>
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<dl>
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<dt><span class="paramLabel">Parameters:</span></dt>
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<dd><code>classCatalog</code> - is the catalog to hold shared class information and
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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>
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<dd><code>baseClass</code> - is the base class for serialized objects stored using
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this binding -- all objects using this binding must be an instance of
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this class. Note that if this parameter is non-null, then this binding
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will not support serialization of null values.</dd>
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</dl>
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</li>
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</ul>
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</li>
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</ul>
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<!-- ============ METHOD DETAIL ========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method.detail">
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<!-- -->
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</a>
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<h3>Method Detail</h3>
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<a name="getBaseClass--">
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<!-- -->
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</a>
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<h4>getBaseClass</h4>
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<pre>public final java.lang.Class<<a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="type parameter in SerialBinding">E</a>> getBaseClass()</pre>
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<div class="block">Returns the base class for this binding.</div>
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<dl>
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||
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<dt><span class="returnLabel">Returns:</span></dt>
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||
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<dd>the base class for this binding.</dd>
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|
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</dl>
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</li>
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</ul>
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<a name="getClassLoader--">
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<h4>getClassLoader</h4>
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<pre>public java.lang.ClassLoader getClassLoader()</pre>
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<div class="block">Returns the class loader to be used during deserialization, or null if a
|
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|
|
default class loader should be used. The default implementation of this
|
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method returns <a href="../../../../com/sleepycat/bind/serial/ClassCatalog.html#getClassLoader--"><code>ClassCatalog.getClassLoader()</code></a>, if it returns a
|
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non-null value. If <a href="../../../../com/sleepycat/bind/serial/ClassCatalog.html#getClassLoader--"><code>ClassCatalog.getClassLoader()</code></a> returns null,
|
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then <code>Thread.currentThread().getContextClassLoader()</code> is
|
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returned.
|
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<p>This method may be overridden to return a dynamically determined
|
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class loader. For example, <code>getBaseClass().getClassLoader()</code>
|
||
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could be called to use the class loader for the base class, assuming
|
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that a base class has been specified.</p>
|
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<p>If this method returns null, a default class loader will be used as
|
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determined by the <code>java.io.ObjectInputStream.resolveClass</code>
|
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method.</p></div>
|
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<dl>
|
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<dt><span class="returnLabel">Returns:</span></dt>
|
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<dd>the ClassLoader or null.</dd>
|
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</dl>
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</li>
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</ul>
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<a name="entryToObject-com.sleepycat.je.DatabaseEntry-">
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<ul class="blockList">
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<h4>entryToObject</h4>
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<pre>public <a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="type parameter in SerialBinding">E</a> entryToObject(<a href="../../../../com/sleepycat/je/DatabaseEntry.html" title="class in com.sleepycat.je">DatabaseEntry</a> entry)</pre>
|
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<div class="block">Deserialize an object from an entry buffer. May only be called for data
|
||
|
|
that was serialized using <a href="../../../../com/sleepycat/bind/serial/SerialBinding.html#objectToEntry-E-com.sleepycat.je.DatabaseEntry-"><code>objectToEntry(E, com.sleepycat.je.DatabaseEntry)</code></a>, since the fixed
|
||
|
|
serialization header is assumed to not be included in the input data.
|
||
|
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<a href="../../../../com/sleepycat/bind/serial/SerialInput.html" title="class in com.sleepycat.bind.serial"><code>SerialInput</code></a> is used to deserialize the object.</div>
|
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<dl>
|
||
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
|
||
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<dd><code><a href="../../../../com/sleepycat/bind/EntryBinding.html#entryToObject-com.sleepycat.je.DatabaseEntry-">entryToObject</a></code> in interface <code><a href="../../../../com/sleepycat/bind/EntryBinding.html" title="interface in com.sleepycat.bind">EntryBinding</a><<a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="type parameter in SerialBinding">E</a>></code></dd>
|
||
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<dt><span class="paramLabel">Parameters:</span></dt>
|
||
|
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<dd><code>entry</code> - is the input serialized entry.</dd>
|
||
|
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<dt><span class="returnLabel">Returns:</span></dt>
|
||
|
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<dd>the output deserialized object.</dd>
|
||
|
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</dl>
|
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</li>
|
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</ul>
|
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<a name="objectToEntry-java.lang.Object-com.sleepycat.je.DatabaseEntry-">
|
||
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<!-- -->
|
||
|
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</a><a name="objectToEntry-E-com.sleepycat.je.DatabaseEntry-">
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<!-- -->
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</a>
|
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<ul class="blockListLast">
|
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<li class="blockList">
|
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<h4>objectToEntry</h4>
|
||
|
|
<pre>public void objectToEntry(<a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="type parameter in SerialBinding">E</a> object,
|
||
|
|
<a href="../../../../com/sleepycat/je/DatabaseEntry.html" title="class in com.sleepycat.je">DatabaseEntry</a> entry)</pre>
|
||
|
|
<div class="block">Serialize an object into an entry buffer. The fixed serialization
|
||
|
|
header is not included in the output data to save space, and therefore
|
||
|
|
to deserialize the data the complementary <a href="../../../../com/sleepycat/bind/serial/SerialBinding.html#entryToObject-com.sleepycat.je.DatabaseEntry-"><code>entryToObject(com.sleepycat.je.DatabaseEntry)</code></a> method
|
||
|
|
must be used. <a href="../../../../com/sleepycat/bind/serial/SerialOutput.html" title="class in com.sleepycat.bind.serial"><code>SerialOutput</code></a> is used to serialize the object.
|
||
|
|
|
||
|
|
<p>Note that this method sets the DatabaseEntry offset property to a
|
||
|
|
non-zero value and the size property to a value less than the length of
|
||
|
|
the byte array.</p></div>
|
||
|
|
<dl>
|
||
|
|
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
|
||
|
|
<dd><code><a href="../../../../com/sleepycat/bind/EntryBinding.html#objectToEntry-E-com.sleepycat.je.DatabaseEntry-">objectToEntry</a></code> in interface <code><a href="../../../../com/sleepycat/bind/EntryBinding.html" title="interface in com.sleepycat.bind">EntryBinding</a><<a href="../../../../com/sleepycat/bind/serial/SerialBinding.html" title="type parameter in SerialBinding">E</a>></code></dd>
|
||
|
|
<dt><span class="paramLabel">Parameters:</span></dt>
|
||
|
|
<dd><code>object</code> - is the input deserialized object.</dd>
|
||
|
|
<dd><code>entry</code> - is the output serialized entry.</dd>
|
||
|
|
<dt><span class="throwsLabel">Throws:</span></dt>
|
||
|
|
<dd><code>java.lang.IllegalArgumentException</code> - if the object is not an instance of the
|
||
|
|
base class for this binding, including if the object is null and a
|
||
|
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non-null base class was specified.</dd>
|
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</dl>
|
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</li>
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