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<div class="subTitle">org.apache.cayenne.query</div>
<h2 title="Class RelationshipQuery" class="title">Class RelationshipQuery</h2>
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<li>
<ul class="inheritance">
<li><a href="../../../../org/apache/cayenne/query/IndirectQuery.html" title="class in org.apache.cayenne.query">org.apache.cayenne.query.IndirectQuery</a></li>
<li>
<ul class="inheritance">
<li>org.apache.cayenne.query.RelationshipQuery</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, <a href="../../../../org/apache/cayenne/configuration/ConfigurationNode.html" title="interface in org.apache.cayenne.configuration">ConfigurationNode</a>, <a href="../../../../org/apache/cayenne/query/Query.html" title="interface in org.apache.cayenne.query">Query</a></dd>
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<br>
<pre>public class <span class="strong">RelationshipQuery</span>
extends <a href="../../../../org/apache/cayenne/query/IndirectQuery.html" title="class in org.apache.cayenne.query">IndirectQuery</a></pre>
<div class="block">A query that selects objects related to a given object via a mapped relationship.
RelationshipQuery is used by Cayenne internally to resolve relationships, and is rarely
executed by the application directly, although this of course is possible too.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>1.2</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../../../serialized-form.html#org.apache.cayenne.query.RelationshipQuery">Serialized Form</a></dd></dl>
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<h3>Field Summary</h3>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../org/apache/cayenne/reflect/ArcProperty.html" title="interface in org.apache.cayenne.reflect">ArcProperty</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#arc">arc</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../../../org/apache/cayenne/query/QueryMetadata.html" title="interface in org.apache.cayenne.query">QueryMetadata</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#metadata">metadata</a></strong></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../org/apache/cayenne/map/EntityResolver.html" title="class in org.apache.cayenne.map">EntityResolver</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#metadataResolver">metadataResolver</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../../../org/apache/cayenne/ObjectId.html" title="class in org.apache.cayenne">ObjectId</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#objectId">objectId</a></strong></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#refreshing">refreshing</a></strong></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <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></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#relationshipName">relationshipName</a></strong></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#statementFetchSize">statementFetchSize</a></strong></code>&nbsp;</td>
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<h3>Fields inherited from class&nbsp;org.apache.cayenne.query.<a href="../../../../org/apache/cayenne/query/IndirectQuery.html" title="class in org.apache.cayenne.query">IndirectQuery</a></h3>
<code><a href="../../../../org/apache/cayenne/query/IndirectQuery.html#dataMap">dataMap</a>, <a href="../../../../org/apache/cayenne/query/IndirectQuery.html#lastResolver">lastResolver</a>, <a href="../../../../org/apache/cayenne/query/IndirectQuery.html#name">name</a>, <a href="../../../../org/apache/cayenne/query/IndirectQuery.html#replacementQuery">replacementQuery</a></code></li>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#RelationshipQuery(org.apache.cayenne.ObjectId,%20java.lang.String)">RelationshipQuery</a></strong>(<a href="../../../../org/apache/cayenne/ObjectId.html" title="class in org.apache.cayenne">ObjectId</a>&nbsp;objectID,
<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;relationshipName)</code>
<div class="block">Creates a RelationshipQuery.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#RelationshipQuery(org.apache.cayenne.ObjectId,%20java.lang.String,%20boolean)">RelationshipQuery</a></strong>(<a href="../../../../org/apache/cayenne/ObjectId.html" title="class in org.apache.cayenne">ObjectId</a>&nbsp;objectID,
<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;relationshipName,
boolean&nbsp;refreshing)</code>
<div class="block">Creates a RelationshipQuery.</div>
</td>
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<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../../../org/apache/cayenne/query/Query.html" title="interface in org.apache.cayenne.query">Query</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#createReplacementQuery(org.apache.cayenne.map.EntityResolver)">createReplacementQuery</a></strong>(<a href="../../../../org/apache/cayenne/map/EntityResolver.html" title="class in org.apache.cayenne.map">EntityResolver</a>&nbsp;resolver)</code>
<div class="block">Creates a substitute query.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/cayenne/query/QueryMetadata.html" title="interface in org.apache.cayenne.query">QueryMetadata</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#getMetaData(org.apache.cayenne.map.EntityResolver)">getMetaData</a></strong>(<a href="../../../../org/apache/cayenne/map/EntityResolver.html" title="class in org.apache.cayenne.map">EntityResolver</a>&nbsp;resolver)</code>
<div class="block">Returns query metadata object.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/cayenne/ObjectId.html" title="class in org.apache.cayenne">ObjectId</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#getObjectId()">getObjectId</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/cayenne/map/ObjRelationship.html" title="class in org.apache.cayenne.map">ObjRelationship</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#getRelationship(org.apache.cayenne.map.EntityResolver)">getRelationship</a></strong>(<a href="../../../../org/apache/cayenne/map/EntityResolver.html" title="class in org.apache.cayenne.map">EntityResolver</a>&nbsp;resolver)</code>
<div class="block">Returns a non-null relationship object for this query.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><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></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#getRelationshipName()">getRelationshipName</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#getStatementFetchSize()">getStatementFetchSize</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#isRefreshing()">isRefreshing</a></strong>()</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#setStatementFetchSize(int)">setStatementFetchSize</a></strong>(int&nbsp;size)</code>
<div class="block">Sets statement's fetch size (0 for no default size)</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><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></code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/cayenne/query/RelationshipQuery.html#toString()">toString</a></strong>()</code>
<div class="block">Overrides toString() outputting a short string with query class and relationship
name.</div>
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<h3>Methods inherited from class&nbsp;org.apache.cayenne.query.<a href="../../../../org/apache/cayenne/query/IndirectQuery.html" title="class in org.apache.cayenne.query">IndirectQuery</a></h3>
<code><a href="../../../../org/apache/cayenne/query/IndirectQuery.html#acceptVisitor(org.apache.cayenne.configuration.ConfigurationNodeVisitor)">acceptVisitor</a>, <a href="../../../../org/apache/cayenne/query/IndirectQuery.html#createSQLAction(org.apache.cayenne.query.SQLActionVisitor)">createSQLAction</a>, <a href="../../../../org/apache/cayenne/query/IndirectQuery.html#getDataMap()">getDataMap</a>, <a href="../../../../org/apache/cayenne/query/IndirectQuery.html#getName()">getName</a>, <a href="../../../../org/apache/cayenne/query/IndirectQuery.html#getReplacementQuery(org.apache.cayenne.map.EntityResolver)">getReplacementQuery</a>, <a href="../../../../org/apache/cayenne/query/IndirectQuery.html#route(org.apache.cayenne.query.QueryRouter,%20org.apache.cayenne.map.EntityResolver,%20org.apache.cayenne.query.Query)">route</a>, <a href="../../../../org/apache/cayenne/query/IndirectQuery.html#setDataMap(org.apache.cayenne.map.DataMap)">setDataMap</a>, <a href="../../../../org/apache/cayenne/query/IndirectQuery.html#setName(java.lang.String)">setName</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li>
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<h3>Field Detail</h3>
<a name="objectId">
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<h4>objectId</h4>
<pre>protected&nbsp;<a href="../../../../org/apache/cayenne/ObjectId.html" title="class in org.apache.cayenne">ObjectId</a> objectId</pre>
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<a name="relationshipName">
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<h4>relationshipName</h4>
<pre>protected&nbsp;<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> relationshipName</pre>
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<h4>refreshing</h4>
<pre>protected&nbsp;boolean refreshing</pre>
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<h4>statementFetchSize</h4>
<pre>protected&nbsp;int statementFetchSize</pre>
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<a name="metadataResolver">
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<h4>metadataResolver</h4>
<pre>protected transient&nbsp;<a href="../../../../org/apache/cayenne/map/EntityResolver.html" title="class in org.apache.cayenne.map">EntityResolver</a> metadataResolver</pre>
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<h4>metadata</h4>
<pre>protected transient&nbsp;<a href="../../../../org/apache/cayenne/query/QueryMetadata.html" title="interface in org.apache.cayenne.query">QueryMetadata</a> metadata</pre>
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<a name="arc">
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<h4>arc</h4>
<pre>protected transient&nbsp;<a href="../../../../org/apache/cayenne/reflect/ArcProperty.html" title="interface in org.apache.cayenne.reflect">ArcProperty</a> arc</pre>
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<h3>Constructor Detail</h3>
<a name="RelationshipQuery(org.apache.cayenne.ObjectId, java.lang.String)">
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<h4>RelationshipQuery</h4>
<pre>public&nbsp;RelationshipQuery(<a href="../../../../org/apache/cayenne/ObjectId.html" title="class in org.apache.cayenne">ObjectId</a>&nbsp;objectID,
<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;relationshipName)</pre>
<div class="block">Creates a RelationshipQuery. Same as
<em>new RelationshipQuery(objectID, relationshipName, true)</em>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>objectID</code> - ObjectId of a root object of the relationship.</dd><dd><code>relationshipName</code> - The name of the relationship.</dd></dl>
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<h4>RelationshipQuery</h4>
<pre>public&nbsp;RelationshipQuery(<a href="../../../../org/apache/cayenne/ObjectId.html" title="class in org.apache.cayenne">ObjectId</a>&nbsp;objectID,
<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;relationshipName,
boolean&nbsp;refreshing)</pre>
<div class="block">Creates a RelationshipQuery.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>objectID</code> - ObjectId of a root object of the relationship.</dd><dd><code>relationshipName</code> - The name of the relationship.</dd><dd><code>refreshing</code> - whether objects should be refreshed</dd></dl>
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<a name="getMetaData(org.apache.cayenne.map.EntityResolver)">
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<h4>getMetaData</h4>
<pre>public&nbsp;<a href="../../../../org/apache/cayenne/query/QueryMetadata.html" title="interface in org.apache.cayenne.query">QueryMetadata</a>&nbsp;getMetaData(<a href="../../../../org/apache/cayenne/map/EntityResolver.html" title="class in org.apache.cayenne.map">EntityResolver</a>&nbsp;resolver)</pre>
<div class="block">Returns query metadata object.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../org/apache/cayenne/query/Query.html#getMetaData(org.apache.cayenne.map.EntityResolver)">getMetaData</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/cayenne/query/Query.html" title="interface in org.apache.cayenne.query">Query</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../org/apache/cayenne/query/IndirectQuery.html#getMetaData(org.apache.cayenne.map.EntityResolver)">getMetaData</a></code>&nbsp;in class&nbsp;<code><a href="../../../../org/apache/cayenne/query/IndirectQuery.html" title="class in org.apache.cayenne.query">IndirectQuery</a></code></dd>
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<pre>public&nbsp;<a href="../../../../org/apache/cayenne/ObjectId.html" title="class in org.apache.cayenne">ObjectId</a>&nbsp;getObjectId()</pre>
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<pre>public&nbsp;boolean&nbsp;isRefreshing()</pre>
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<pre>public&nbsp;<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;getRelationshipName()</pre>
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<h4>createReplacementQuery</h4>
<pre>protected&nbsp;<a href="../../../../org/apache/cayenne/query/Query.html" title="interface in org.apache.cayenne.query">Query</a>&nbsp;createReplacementQuery(<a href="../../../../org/apache/cayenne/map/EntityResolver.html" title="class in org.apache.cayenne.map">EntityResolver</a>&nbsp;resolver)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../org/apache/cayenne/query/IndirectQuery.html#createReplacementQuery(org.apache.cayenne.map.EntityResolver)">IndirectQuery</a></code></strong></div>
<div class="block">Creates a substitute query. An implementor is free to provide an arbitrary
replacement query.</div>
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<h4>getRelationship</h4>
<pre>public&nbsp;<a href="../../../../org/apache/cayenne/map/ObjRelationship.html" title="class in org.apache.cayenne.map">ObjRelationship</a>&nbsp;getRelationship(<a href="../../../../org/apache/cayenne/map/EntityResolver.html" title="class in org.apache.cayenne.map">EntityResolver</a>&nbsp;resolver)</pre>
<div class="block">Returns a non-null relationship object for this query.</div>
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<pre>public&nbsp;void&nbsp;setStatementFetchSize(int&nbsp;size)</pre>
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<pre>public&nbsp;int&nbsp;getStatementFetchSize()</pre>
<dl><dt><span class="strong">Returns:</span></dt><dd>statement's fetch size</dd><dt><span class="strong">Since:</span></dt>
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<pre>public&nbsp;<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;toString()</pre>
<div class="block">Overrides toString() outputting a short string with query class and relationship
name.</div>
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