api32/apidocs/javax/jdo/query/StringExpression.html - db-jdo-site - Git at Google

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 <div class="subTitle">javax.jdo.query</div>
 <h2 title="Interface StringExpression" class="title">Interface StringExpression</h2>
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 <dl>
 <dt>All Superinterfaces:</dt>
 <dd><a href="../../../javax/jdo/query/ComparableExpression.html" title="interface in javax.jdo.query">ComparableExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;, <a href="../../../javax/jdo/query/Expression.html" title="interface in javax.jdo.query">Expression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</dd>
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 <hr>
 <br>
 <pre>public interface <span class="typeNameLabel">StringExpression</span>
 extends <a href="../../../javax/jdo/query/ComparableExpression.html" title="interface in javax.jdo.query">ComparableExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</pre>
 <div class="block">Representation of a string in a query.</div>
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 <h3>Method Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
 <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Method and Description</th>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#add-javax.jdo.query.Expression-">add</a></span>(<a href="../../../javax/jdo/query/Expression.html" title="interface in javax.jdo.query">Expression</a>&nbsp;expr)</code>
 <div class="block">Method to return an expression for this expression added to the passed expression (String concatenation).</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#add-java.lang.String-">add</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str)</code>
 <div class="block">Method to return an expression for this expression added to the passed string (String concatenation).</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/CharacterExpression.html" title="interface in javax.jdo.query">CharacterExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#charAt-int-">charAt</a></span>(int&nbsp;pos)</code>
 <div class="block">Method to return an expression for the character at a position of this string expression.</div>
 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/CharacterExpression.html" title="interface in javax.jdo.query">CharacterExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#charAt-javax.jdo.query.NumericExpression-">charAt</a></span>(<a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;pos)</code>
 <div class="block">Method to return an expression for the character at a position of this string expression.</div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#endsWith-java.lang.String-">endsWith</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str)</code>
 <div class="block">Method returning an expression for whether this string expression ends with the passed string expression.</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#endsWith-javax.jdo.query.StringExpression-">endsWith</a></span>(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr)</code>
 <div class="block">Method returning an expression for whether this string expression ends with the passed string expression.</div>
 </td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#equalsIgnoreCase-java.lang.String-">equalsIgnoreCase</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str)</code>
 <div class="block">Method returning an expression for whether this string expression is equal to (ignoring case) the
  passed string.</div>
 </td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#equalsIgnoreCase-javax.jdo.query.StringExpression-">equalsIgnoreCase</a></span>(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr)</code>
 <div class="block">Method returning an expression for whether this string expression is equal to (ignoring case) the
  passed string expression.</div>
 </td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#indexOf-java.lang.String-">indexOf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str)</code>
 <div class="block">Method to return an expression for the position of the passed string in this string.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#indexOf-javax.jdo.query.StringExpression-">indexOf</a></span>(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr)</code>
 <div class="block">Method to return an expression for the position of the passed string in this string.</div>
 </td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#indexOf-javax.jdo.query.StringExpression-int-">indexOf</a></span>(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr,
        int&nbsp;pos)</code>
 <div class="block">Method to return an expression for the position of the passed string in this string after a position.</div>
 </td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#indexOf-javax.jdo.query.StringExpression-javax.jdo.query.NumericExpression-">indexOf</a></span>(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr,
        <a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;pos)</code>
 <div class="block">Method to return an expression for the position of the passed string in this string after a position.</div>
 </td>
 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#indexOf-java.lang.String-int-">indexOf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str,
        int&nbsp;pos)</code>
 <div class="block">Method to return an expression for the position of the passed string in this string after a position.</div>
 </td>
 </tr>
 <tr id="i13" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#indexOf-java.lang.String-javax.jdo.query.NumericExpression-">indexOf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str,
        <a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;pos)</code>
 <div class="block">Method to return an expression for the position of the passed string in this string after a position.</div>
 </td>
 </tr>
 <tr id="i14" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#length--">length</a></span>()</code>
 <div class="block">Method returning a expression for the length of this string.</div>
 </td>
 </tr>
 <tr id="i15" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#matches-java.lang.String-">matches</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str)</code>
 <div class="block">Method to return an expression for whether this string expression matches the provided string.</div>
 </td>
 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#matches-javax.jdo.query.StringExpression-">matches</a></span>(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr)</code>
 <div class="block">Method to return an expression for whether this string expression matches the provided expression.</div>
 </td>
 </tr>
 <tr id="i17" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#startsWith-java.lang.String-">startsWith</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str)</code>
 <div class="block">Method returning an expression for whether this string expression starts with the passed string.</div>
 </td>
 </tr>
 <tr id="i18" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#startsWith-javax.jdo.query.StringExpression-">startsWith</a></span>(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr)</code>
 <div class="block">Method returning an expression for whether this string expression starts with the passed string expression.</div>
 </td>
 </tr>
 <tr id="i19" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#startsWith-javax.jdo.query.StringExpression-int-">startsWith</a></span>(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr,
           int&nbsp;index)</code>
 <div class="block">Method returning an expression for whether the substring of this string beginning at the specified
  index starts with the passed string expression.</div>
 </td>
 </tr>
 <tr id="i20" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#startsWith-java.lang.String-int-">startsWith</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str,
           int&nbsp;index)</code>
 <div class="block">Method returning an expression for whether the substring of this string beginning at the specified
  index starts with the passed string.</div>
 </td>
 </tr>
 <tr id="i21" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#substring-int-">substring</a></span>(int&nbsp;pos)</code>
 <div class="block">Method to return an expression for the substring of this string expression.</div>
 </td>
 </tr>
 <tr id="i22" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#substring-int-int-">substring</a></span>(int&nbsp;startPos,
          int&nbsp;endPos)</code>
 <div class="block">Method to return an expression for the substring of this string expression.</div>
 </td>
 </tr>
 <tr id="i23" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#substring-javax.jdo.query.NumericExpression-">substring</a></span>(<a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;pos)</code>
 <div class="block">Method to return an expression for the substring of this string expression.</div>
 </td>
 </tr>
 <tr id="i24" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#substring-javax.jdo.query.NumericExpression-javax.jdo.query.NumericExpression-">substring</a></span>(<a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;startPos,
          <a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;endPos)</code>
 <div class="block">Method to return an expression for the substring of this string expression.</div>
 </td>
 </tr>
 <tr id="i25" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#toLowerCase--">toLowerCase</a></span>()</code>
 <div class="block">Method to return a StringExpression representing this string expression in lower case.</div>
 </td>
 </tr>
 <tr id="i26" class="altColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#toUpperCase--">toUpperCase</a></span>()</code>
 <div class="block">Method to return a StringExpression representing this string expression in upper case.</div>
 </td>
 </tr>
 <tr id="i27" class="rowColor">
 <td class="colFirst"><code><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/jdo/query/StringExpression.html#trim--">trim</a></span>()</code>
 <div class="block">Method returning a string expression with whitespace trimmed from start and end.</div>
 </td>
 </tr>
 </table>
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 <code><a href="../../../javax/jdo/query/ComparableExpression.html#asc--">asc</a>, <a href="../../../javax/jdo/query/ComparableExpression.html#desc--">desc</a>, <a href="../../../javax/jdo/query/ComparableExpression.html#gt-javax.jdo.query.ComparableExpression-">gt</a>, <a href="../../../javax/jdo/query/ComparableExpression.html#gt-T-">gt</a>, <a href="../../../javax/jdo/query/ComparableExpression.html#gteq-javax.jdo.query.ComparableExpression-">gteq</a>, <a href="../../../javax/jdo/query/ComparableExpression.html#gteq-T-">gteq</a>, <a href="../../../javax/jdo/query/ComparableExpression.html#lt-javax.jdo.query.ComparableExpression-">lt</a>, <a href="../../../javax/jdo/query/ComparableExpression.html#lt-T-">lt</a>, <a href="../../../javax/jdo/query/ComparableExpression.html#lteq-javax.jdo.query.ComparableExpression-">lteq</a>, <a href="../../../javax/jdo/query/ComparableExpression.html#lteq-T-">lteq</a>, <a href="../../../javax/jdo/query/ComparableExpression.html#max--">max</a>, <a href="../../../javax/jdo/query/ComparableExpression.html#min--">min</a></code></li>
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 <code><a href="../../../javax/jdo/query/Expression.html#as-java.lang.String-">as</a>, <a href="../../../javax/jdo/query/Expression.html#cast-java.lang.Class-">cast</a>, <a href="../../../javax/jdo/query/Expression.html#count--">count</a>, <a href="../../../javax/jdo/query/Expression.html#countDistinct--">countDistinct</a>, <a href="../../../javax/jdo/query/Expression.html#eq-javax.jdo.query.Expression-">eq</a>, <a href="../../../javax/jdo/query/Expression.html#eq-T-">eq</a>, <a href="../../../javax/jdo/query/Expression.html#instanceOf-java.lang.Class-">instanceOf</a>, <a href="../../../javax/jdo/query/Expression.html#ne-javax.jdo.query.Expression-">ne</a>, <a href="../../../javax/jdo/query/Expression.html#ne-T-">ne</a></code></li>
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 <pre><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;add(<a href="../../../javax/jdo/query/Expression.html" title="interface in javax.jdo.query">Expression</a>&nbsp;expr)</pre>
 <div class="block">Method to return an expression for this expression added to the passed expression (String concatenation).</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>expr</code> - The other expression</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The summation</dd>
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 <div class="block">Method to return an expression for this expression added to the passed string (String concatenation).</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>str</code> - The other string</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The summation</dd>
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 <pre><a href="../../../javax/jdo/query/CharacterExpression.html" title="interface in javax.jdo.query">CharacterExpression</a>&nbsp;charAt(int&nbsp;pos)</pre>
 <div class="block">Method to return an expression for the character at a position of this string expression.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>pos</code> - The position</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the character</dd>
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 <div class="block">Method to return an expression for the character at a position of this string expression.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>pos</code> - The position</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the character</dd>
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 <pre><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a>&nbsp;endsWith(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr)</pre>
 <div class="block">Method returning an expression for whether this string expression ends with the passed string expression.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>expr</code> - The expression that it ends with.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Whether it ends with the other string</dd>
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 <div class="block">Method returning an expression for whether this string expression ends with the passed string expression.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>str</code> - The string that it ends with.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Whether it ends with the other string</dd>
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 <pre><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a>&nbsp;equalsIgnoreCase(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr)</pre>
 <div class="block">Method returning an expression for whether this string expression is equal to (ignoring case) the
  passed string expression.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>expr</code> - The expression</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Whether they are equal</dd>
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 <div class="block">Method returning an expression for whether this string expression is equal to (ignoring case) the
  passed string.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>str</code> - The string</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Whether they are equal</dd>
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 <pre><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;indexOf(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr)</pre>
 <div class="block">Method to return an expression for the position of the passed string in this string.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>expr</code> - The other string</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the position of the passed string</dd>
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 <pre><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;indexOf(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str)</pre>
 <div class="block">Method to return an expression for the position of the passed string in this string.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>str</code> - The other string</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the position of the passed string</dd>
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 <pre><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;indexOf(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr,
                                    <a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;pos)</pre>
 <div class="block">Method to return an expression for the position of the passed string in this string after a position.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>expr</code> - The other string</dd>
 <dd><code>pos</code> - Start point of the search</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the position of the passed string</dd>
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 <pre><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;indexOf(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str,
                                    <a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;pos)</pre>
 <div class="block">Method to return an expression for the position of the passed string in this string after a position.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>str</code> - The other string</dd>
 <dd><code>pos</code> - Start point of the search</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the position of the passed string</dd>
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 <pre><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;indexOf(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str,
                                    int&nbsp;pos)</pre>
 <div class="block">Method to return an expression for the position of the passed string in this string after a position.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>str</code> - The other string</dd>
 <dd><code>pos</code> - Start point of the search</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the position of the passed string</dd>
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 <pre><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;indexOf(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr,
                                    int&nbsp;pos)</pre>
 <div class="block">Method to return an expression for the position of the passed string in this string after a position.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>expr</code> - The other string</dd>
 <dd><code>pos</code> - Start point of the search</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the position of the passed string</dd>
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 <pre><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;length()</pre>
 <div class="block">Method returning a expression for the length of this string.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the length</dd>
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 <pre><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a>&nbsp;matches(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr)</pre>
 <div class="block">Method to return an expression for whether this string expression matches the provided expression.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>expr</code> - The expression to match against</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Whether this expression matches the provided expression</dd>
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 <pre><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a>&nbsp;matches(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str)</pre>
 <div class="block">Method to return an expression for whether this string expression matches the provided string.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>str</code> - String literal to match against</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Whether this expression matches the provided string</dd>
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 <pre><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a>&nbsp;startsWith(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr)</pre>
 <div class="block">Method returning an expression for whether this string expression starts with the passed string expression.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>expr</code> - The expression that it starts with.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Whether it starts with the other string</dd>
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 <pre><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a>&nbsp;startsWith(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str)</pre>
 <div class="block">Method returning an expression for whether this string expression starts with the passed string.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>str</code> - The string that it starts with.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Whether it starts with the other string</dd>
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 <pre><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a>&nbsp;startsWith(<a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;expr,
                              int&nbsp;index)</pre>
 <div class="block">Method returning an expression for whether the substring of this string beginning at the specified
  index starts with the passed string expression.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>expr</code> - The expression that it starts with.</dd>
 <dd><code>index</code> - where to begin looking in this string</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Whether it starts with the other string</dd>
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 <pre><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a>&nbsp;startsWith(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str,
                              int&nbsp;index)</pre>
 <div class="block">Method returning an expression for whether the substring of this string beginning at the specified
  index starts with the passed string.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>str</code> - The string that it starts with.</dd>
 <dd><code>index</code> - where to begin looking in this string</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Whether it starts with the other string</dd>
 </dl>
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 <pre><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;substring(<a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;pos)</pre>
 <div class="block">Method to return an expression for the substring of this string expression.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>pos</code> - The position of the start point of the substring</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the substring</dd>
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 <pre><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;substring(int&nbsp;pos)</pre>
 <div class="block">Method to return an expression for the substring of this string expression.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>pos</code> - The position of the start point of the substring</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the substring</dd>
 </dl>
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 <pre><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;substring(<a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;startPos,
                            <a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;&nbsp;endPos)</pre>
 <div class="block">Method to return an expression for the substring of this string expression.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>startPos</code> - The position of the start point of the substring (inclusive, origin 0)</dd>
 <dd><code>endPos</code> - The position of the end point of the substring (exclusive, origin 0)</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the substring</dd>
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 <pre><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;substring(int&nbsp;startPos,
                            int&nbsp;endPos)</pre>
 <div class="block">Method to return an expression for the substring of this string expression.</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>startPos</code> - The position of the start point of the substring (inclusive, origin 0)</dd>
 <dd><code>endPos</code> - The position of the end point of the substring (exclusive, origin 0)</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>Expression for the substring</dd>
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 <pre><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;toLowerCase()</pre>
 <div class="block">Method to return a StringExpression representing this string expression in lower case.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The lower case expression</dd>
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 <pre><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;toUpperCase()</pre>
 <div class="block">Method to return a StringExpression representing this string expression in upper case.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>The upper case expression</dd>
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 <pre><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a>&nbsp;trim()</pre>
 <div class="block">Method returning a string expression with whitespace trimmed from start and end.</div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>String expression with whitespace trimmed</dd>
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