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<div class="subTitle">javax.jdo.metadata</div>
<h2 title="Interface Metadata" class="title">Interface Metadata</h2>
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<dt>All Known Subinterfaces:</dt>
<dd><a href="../../../javax/jdo/metadata/ArrayMetadata.html" title="interface in javax.jdo.metadata">ArrayMetadata</a>, <a href="../../../javax/jdo/metadata/ClassMetadata.html" title="interface in javax.jdo.metadata">ClassMetadata</a>, <a href="../../../javax/jdo/metadata/CollectionMetadata.html" title="interface in javax.jdo.metadata">CollectionMetadata</a>, <a href="../../../javax/jdo/metadata/ColumnMetadata.html" title="interface in javax.jdo.metadata">ColumnMetadata</a>, <a href="../../../javax/jdo/metadata/DatastoreIdentityMetadata.html" title="interface in javax.jdo.metadata">DatastoreIdentityMetadata</a>, <a href="../../../javax/jdo/metadata/DiscriminatorMetadata.html" title="interface in javax.jdo.metadata">DiscriminatorMetadata</a>, <a href="../../../javax/jdo/metadata/ElementMetadata.html" title="interface in javax.jdo.metadata">ElementMetadata</a>, <a href="../../../javax/jdo/metadata/EmbeddedMetadata.html" title="interface in javax.jdo.metadata">EmbeddedMetadata</a>, <a href="../../../javax/jdo/metadata/FetchGroupMetadata.html" title="interface in javax.jdo.metadata">FetchGroupMetadata</a>, <a href="../../../javax/jdo/metadata/FetchPlanMetadata.html" title="interface in javax.jdo.metadata">FetchPlanMetadata</a>, <a href="../../../javax/jdo/metadata/FieldMetadata.html" title="interface in javax.jdo.metadata">FieldMetadata</a>, <a href="../../../javax/jdo/metadata/ForeignKeyMetadata.html" title="interface in javax.jdo.metadata">ForeignKeyMetadata</a>, <a href="../../../javax/jdo/metadata/IndexMetadata.html" title="interface in javax.jdo.metadata">IndexMetadata</a>, <a href="../../../javax/jdo/metadata/InheritanceMetadata.html" title="interface in javax.jdo.metadata">InheritanceMetadata</a>, <a href="../../../javax/jdo/metadata/InterfaceMetadata.html" title="interface in javax.jdo.metadata">InterfaceMetadata</a>, <a href="../../../javax/jdo/metadata/JDOMetadata.html" title="interface in javax.jdo.metadata">JDOMetadata</a>, <a href="../../../javax/jdo/metadata/JoinMetadata.html" title="interface in javax.jdo.metadata">JoinMetadata</a>, <a href="../../../javax/jdo/metadata/KeyMetadata.html" title="interface in javax.jdo.metadata">KeyMetadata</a>, <a href="../../../javax/jdo/metadata/MapMetadata.html" title="interface in javax.jdo.metadata">MapMetadata</a>, <a href="../../../javax/jdo/metadata/MemberMetadata.html" title="interface in javax.jdo.metadata">MemberMetadata</a>, <a href="../../../javax/jdo/metadata/OrderMetadata.html" title="interface in javax.jdo.metadata">OrderMetadata</a>, <a href="../../../javax/jdo/metadata/PackageMetadata.html" title="interface in javax.jdo.metadata">PackageMetadata</a>, <a href="../../../javax/jdo/metadata/PrimaryKeyMetadata.html" title="interface in javax.jdo.metadata">PrimaryKeyMetadata</a>, <a href="../../../javax/jdo/metadata/PropertyMetadata.html" title="interface in javax.jdo.metadata">PropertyMetadata</a>, <a href="../../../javax/jdo/metadata/QueryMetadata.html" title="interface in javax.jdo.metadata">QueryMetadata</a>, <a href="../../../javax/jdo/metadata/SequenceMetadata.html" title="interface in javax.jdo.metadata">SequenceMetadata</a>, <a href="../../../javax/jdo/metadata/TypeMetadata.html" title="interface in javax.jdo.metadata">TypeMetadata</a>, <a href="../../../javax/jdo/metadata/UniqueMetadata.html" title="interface in javax.jdo.metadata">UniqueMetadata</a>, <a href="../../../javax/jdo/metadata/ValueMetadata.html" title="interface in javax.jdo.metadata">ValueMetadata</a>, <a href="../../../javax/jdo/metadata/VersionMetadata.html" title="interface in javax.jdo.metadata">VersionMetadata</a></dd>
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<pre>public interface <span class="strong">Metadata</span></pre>
<div class="block">This interface provides base level definitions for all metadata components.</div>
<dl><dt><span class="strong">Version:</span></dt>
<dd>3.0</dd></dl>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code><a href="../../../javax/jdo/metadata/ExtensionMetadata.html" title="interface in javax.jdo.metadata">ExtensionMetadata</a>[]</code></td>
<td class="colLast"><code><strong><a href="../../../javax/jdo/metadata/Metadata.html#getExtensions()">getExtensions</a></strong>()</code>
<div class="block">Accessor for the defined extensions for this component</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../javax/jdo/metadata/Metadata.html#getNumberOfExtensions()">getNumberOfExtensions</a></strong>()</code>
<div class="block">Number of extensions on this component.</div>
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<td class="colFirst"><code><a href="../../../javax/jdo/metadata/Metadata.html" title="interface in javax.jdo.metadata">Metadata</a></code></td>
<td class="colLast"><code><strong><a href="../../../javax/jdo/metadata/Metadata.html#getParent()">getParent</a></strong>()</code>
<div class="block">Accessor for the parent metadata component.</div>
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<td class="colFirst"><code><a href="../../../javax/jdo/metadata/ExtensionMetadata.html" title="interface in javax.jdo.metadata">ExtensionMetadata</a></code></td>
<td class="colLast"><code><strong><a href="../../../javax/jdo/metadata/Metadata.html#newExtensionMetadata(java.lang.String,%20java.lang.String,%20java.lang.String)">newExtensionMetadata</a></strong>(<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;vendor,
<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;key,
<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;value)</code>
<div class="block">Add a vendor extension to this metadata component.</div>
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<h4>newExtensionMetadata</h4>
<pre><a href="../../../javax/jdo/metadata/ExtensionMetadata.html" title="interface in javax.jdo.metadata">ExtensionMetadata</a>&nbsp;newExtensionMetadata(<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;vendor,
<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;key,
<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;value)</pre>
<div class="block">Add a vendor extension to this metadata component.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>vendor</code> - Identifier for the vendor</dd><dd><code>key</code> - The extension key</dd><dd><code>value</code> - Value for the extension</dd>
<dt><span class="strong">Returns:</span></dt><dd>The ExtensionMetadata</dd></dl>
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<h4>getNumberOfExtensions</h4>
<pre>int&nbsp;getNumberOfExtensions()</pre>
<div class="block">Number of extensions on this component.</div>
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<h4>getExtensions</h4>
<pre><a href="../../../javax/jdo/metadata/ExtensionMetadata.html" title="interface in javax.jdo.metadata">ExtensionMetadata</a>[]&nbsp;getExtensions()</pre>
<div class="block">Accessor for the defined extensions for this component</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The extensions</dd></dl>
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<h4>getParent</h4>
<pre><a href="../../../javax/jdo/metadata/Metadata.html" title="interface in javax.jdo.metadata">Metadata</a>&nbsp;getParent()</pre>
<div class="block">Accessor for the parent metadata component.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The parent</dd></dl>
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