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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.eclipse.persistence.jpa.jpql.tools</a></div>
<h2 title="Class AbstractContentAssistVisitor.ConstrutorCollectionHelper" class="title">Class AbstractContentAssistVisitor.ConstrutorCollectionHelper</h2>
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<dt>All Implemented Interfaces:</dt>
<dd><code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html" title="interface in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor.CollectionExpressionHelper</a>&lt;<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&gt;</code></dd>
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<dt>Enclosing class:</dt>
<dd><a href="AbstractContentAssistVisitor.html" title="class in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor</a></dd>
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<pre>protected static final class <span class="typeNameLabel">AbstractContentAssistVisitor.ConstrutorCollectionHelper</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>
implements <a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html" title="interface in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor.CollectionExpressionHelper</a>&lt;<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&gt;</pre>
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<th class="colFirst" scope="col">Modifier</th>
<th class="colSecond" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
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<tr class="altColor">
<td class="colFirst"><code>protected </code></td>
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.eclipse.persistence.jpa.jpql.tools.AbstractContentAssistVisitor)">ConstrutorCollectionHelper</a></span>&#8203;(<a href="AbstractContentAssistVisitor.html" title="class in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor</a>&nbsp;visitor)</code></th>
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<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addAtTheEndOfChild(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression,org.eclipse.persistence.jpa.jpql.parser.CollectionExpression,int,boolean,boolean)">addAtTheEndOfChild</a></span>&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression,
<a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">CollectionExpression</a>&nbsp;collectionExpression,
int&nbsp;index,
boolean&nbsp;hasComma,
boolean&nbsp;virtualSpace)</code></th>
<td class="colLast">
<div class="block">Adds the proposals because the cursor is at the end of the child at the given position.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addIdentifier(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression,java.lang.String)">addIdentifier</a></span>&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;identifier)</code></th>
<td class="colLast">
<div class="block">Adds the given JPQL identifier as a valid proposal.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addTheBeginningOfChild(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression,org.eclipse.persistence.jpa.jpql.parser.CollectionExpression,int,boolean)">addTheBeginningOfChild</a></span>&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression,
<a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">CollectionExpression</a>&nbsp;collectionExpression,
int&nbsp;index,
boolean&nbsp;hasComma)</code></th>
<td class="colLast">
<div class="block">Adds the proposals because the cursor is at the beginning of the child <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a>
at the given position.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">CollectionExpression</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#buildCollectionExpression(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression)">buildCollectionExpression</a></span>&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression)</code></th>
<td class="colLast">
<div class="block">Either returns the given <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a>'s child, which is already a <a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser"><code>CollectionExpression</code></a>
or requests this helper to return a "virtual" <a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser"><code>CollectionExpression</code></a> that is wrapping
the single element.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#canContinue(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression,org.eclipse.persistence.jpa.jpql.parser.CollectionExpression,int)">canContinue</a></span>&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression,
<a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">CollectionExpression</a>&nbsp;collectionExpression,
int&nbsp;index)</code></th>
<td class="colLast">
<div class="block">Asks this helper if the search can continue even though two child expressions are not
separated by a comma.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hasDelimiterAfterIdentifier(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression)">hasDelimiterAfterIdentifier</a></span>&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression)</code></th>
<td class="colLast">
<div class="block">Determines whether a delimiter like a whitespace or an open parenthesis was parsed after
the identifier.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#maxCollectionSize(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression)">maxCollectionSize</a></span>&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression)</code></th>
<td class="colLast">
<div class="block">Returns the maximum number of encapsulated <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>expressions</code></a> the <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a>
allows.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#preExpressionLength(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression)">preExpressionLength</a></span>&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression)</code></th>
<td class="colLast">
<div class="block">Returns the length of anything that can be defined before the first child.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../parser/JPQLQueryBNF.html" title="class in org.eclipse.persistence.jpa.jpql.parser">JPQLQueryBNF</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#queryBNF(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression,int)">queryBNF</a></span>&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression,
int&nbsp;index)</code></th>
<td class="colLast">
<div class="block">Returns the <a href="../parser/JPQLQueryBNF.html" title="class in org.eclipse.persistence.jpa.jpql.parser"><code>JPQLQueryBNF</code></a> that defines the fragment at the given position.</div>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></li>
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<h3>Constructor Detail</h3>
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<h4>ConstrutorCollectionHelper</h4>
<pre>protected&nbsp;ConstrutorCollectionHelper&#8203;(<a href="AbstractContentAssistVisitor.html" title="class in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor</a>&nbsp;visitor)</pre>
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<a id="addAtTheEndOfChild(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression,org.eclipse.persistence.jpa.jpql.parser.CollectionExpression,int,boolean,boolean)">
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<h4>addAtTheEndOfChild</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;addAtTheEndOfChild&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression,
<a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">CollectionExpression</a>&nbsp;collectionExpression,
int&nbsp;index,
boolean&nbsp;hasComma,
boolean&nbsp;virtualSpace)</pre>
<div class="block">Adds the proposals because the cursor is at the end of the child at the given position.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html#addAtTheEndOfChild(T,org.eclipse.persistence.jpa.jpql.parser.CollectionExpression,int,boolean,boolean)">addAtTheEndOfChild</a></code>&nbsp;in interface&nbsp;<code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html" title="interface in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor.CollectionExpressionHelper</a>&lt;<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a> being visited</dd>
<dd><code>collectionExpression</code> - The <a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser"><code>CollectionExpression</code></a> is either the child of the
given <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a> or a temporary generated one that usually contains a single item</dd>
<dd><code>index</code> - The position of that child in the collection of children</dd>
<dd><code>hasComma</code> - Indicates whether a comma is present before the child at the given position;
if the index is 0, then this is <code>false</code> by default</dd>
<dd><code>virtualSpace</code> - Indicates if this method is called because the cursor is at the end of
the child at the specified index but by considering there is a virtual space at the end of
that child</dd>
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<h4>addIdentifier</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;addIdentifier&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;identifier)</pre>
<div class="block">Adds the given JPQL identifier as a valid proposal.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html#addIdentifier(T,java.lang.String)">addIdentifier</a></code>&nbsp;in interface&nbsp;<code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html" title="interface in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor.CollectionExpressionHelper</a>&lt;<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a> being visited</dd>
<dd><code>identifier</code> - The JPQL identifier to add as a valid proposal</dd>
</dl>
</li>
</ul>
<a id="addTheBeginningOfChild(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression,org.eclipse.persistence.jpa.jpql.parser.CollectionExpression,int,boolean)">
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<h4>addTheBeginningOfChild</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;addTheBeginningOfChild&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression,
<a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">CollectionExpression</a>&nbsp;collectionExpression,
int&nbsp;index,
boolean&nbsp;hasComma)</pre>
<div class="block">Adds the proposals because the cursor is at the beginning of the child <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a>
at the given position.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html#addTheBeginningOfChild(T,org.eclipse.persistence.jpa.jpql.parser.CollectionExpression,int,boolean)">addTheBeginningOfChild</a></code>&nbsp;in interface&nbsp;<code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html" title="interface in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor.CollectionExpressionHelper</a>&lt;<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a> being visited</dd>
<dd><code>collectionExpression</code> - The <a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser"><code>CollectionExpression</code></a> is either the child of the
given <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a> or a temporary generated one that usually contains a single item.
This can be null if the position is at the beginning</dd>
<dd><code>index</code> - The position of the child that was scanned</dd>
<dd><code>hasComma</code> - Indicates whether a comma is present before the child at the given position;
if the index is 0, then this is <code>false</code> by default</dd>
</dl>
</li>
</ul>
<a id="buildCollectionExpression(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression)">
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<h4>buildCollectionExpression</h4>
<pre class="methodSignature">public&nbsp;<a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">CollectionExpression</a>&nbsp;buildCollectionExpression&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression)</pre>
<div class="block">Either returns the given <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a>'s child, which is already a <a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser"><code>CollectionExpression</code></a>
or requests this helper to return a "virtual" <a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser"><code>CollectionExpression</code></a> that is wrapping
the single element.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html#buildCollectionExpression(T)">buildCollectionExpression</a></code>&nbsp;in interface&nbsp;<code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html" title="interface in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor.CollectionExpressionHelper</a>&lt;<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The parent of the children to retrieve</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The given expression's child or a "virtual" one</dd>
</dl>
</li>
</ul>
<a id="canContinue(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression,org.eclipse.persistence.jpa.jpql.parser.CollectionExpression,int)">
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<h4>canContinue</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;canContinue&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression,
<a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">CollectionExpression</a>&nbsp;collectionExpression,
int&nbsp;index)</pre>
<div class="block">Asks this helper if the search can continue even though two child expressions are not
separated by a comma.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html#canContinue(T,org.eclipse.persistence.jpa.jpql.parser.CollectionExpression,int)">canContinue</a></code>&nbsp;in interface&nbsp;<code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html" title="interface in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor.CollectionExpressionHelper</a>&lt;<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a> being visited</dd>
<dd><code>collectionExpression</code> - The <a href="../parser/CollectionExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser"><code>CollectionExpression</code></a></dd>
<dd><code>index</code> - The position of the child being scanned</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the check can continue even though the previous child was not
separated by a comma; <code>false</code> to stop the check</dd>
</dl>
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</ul>
<a id="hasDelimiterAfterIdentifier(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression)">
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<h4>hasDelimiterAfterIdentifier</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;hasDelimiterAfterIdentifier&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression)</pre>
<div class="block">Determines whether a delimiter like a whitespace or an open parenthesis was parsed after
the identifier.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html#hasDelimiterAfterIdentifier(T)">hasDelimiterAfterIdentifier</a></code>&nbsp;in interface&nbsp;<code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html" title="interface in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor.CollectionExpressionHelper</a>&lt;<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a> being visited</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if something is present; <code>false</code> otherwise</dd>
</dl>
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</ul>
<a id="maxCollectionSize(org.eclipse.persistence.jpa.jpql.parser.ConstructorExpression)">
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<h4>maxCollectionSize</h4>
<pre class="methodSignature">public&nbsp;int&nbsp;maxCollectionSize&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression)</pre>
<div class="block">Returns the maximum number of encapsulated <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>expressions</code></a> the <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a>
allows. Some expression only allow 2, others 3 and others allow an unlimited number.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html#maxCollectionSize(T)">maxCollectionSize</a></code>&nbsp;in interface&nbsp;<code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html" title="interface in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor.CollectionExpressionHelper</a>&lt;<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a> for which its maximum number of children</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The maximum number of children the expression can have</dd>
</dl>
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</ul>
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<h4>preExpressionLength</h4>
<pre class="methodSignature">public&nbsp;int&nbsp;preExpressionLength&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression)</pre>
<div class="block">Returns the length of anything that can be defined before the first child. An example can
be "<code>DISTINCT </code>" in "<code>AVG(DISTINCT e.name)</code>".</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html#preExpressionLength(T)">preExpressionLength</a></code>&nbsp;in interface&nbsp;<code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html" title="interface in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor.CollectionExpressionHelper</a>&lt;<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a> being visited</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The length of anything that was parsed before the first child or 0 if nothing was parsed</dd>
</dl>
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</ul>
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<h4>queryBNF</h4>
<pre class="methodSignature">public&nbsp;<a href="../parser/JPQLQueryBNF.html" title="class in org.eclipse.persistence.jpa.jpql.parser">JPQLQueryBNF</a>&nbsp;queryBNF&#8203;(<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&nbsp;expression,
int&nbsp;index)</pre>
<div class="block">Returns the <a href="../parser/JPQLQueryBNF.html" title="class in org.eclipse.persistence.jpa.jpql.parser"><code>JPQLQueryBNF</code></a> that defines the fragment at the given position.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html#queryBNF(T,int)">queryBNF</a></code>&nbsp;in interface&nbsp;<code><a href="AbstractContentAssistVisitor.CollectionExpressionHelper.html" title="interface in org.eclipse.persistence.jpa.jpql.tools">AbstractContentAssistVisitor.CollectionExpressionHelper</a>&lt;<a href="../parser/ConstructorExpression.html" title="class in org.eclipse.persistence.jpa.jpql.parser">ConstructorExpression</a>&gt;</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The <a href="../parser/Expression.html" title="interface in org.eclipse.persistence.jpa.jpql.parser"><code>Expression</code></a> being visited</dd>
<dd><code>index</code> - The position of the element to retrieve the BNF defined in the JPQL grammar</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The <a href="../parser/JPQLQueryBNF.html" title="class in org.eclipse.persistence.jpa.jpql.parser"><code>JPQLQueryBNF</code></a> that defines the fragment at the given position</dd>
</dl>
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