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<h1 title="Package" class="title">Package&nbsp;javax.jdo.query</h1>
<div class="docSummary">
<div class="block">Package providing expressions for building a typed JDOQL query.</div>
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<p>See:&nbsp;<a href="#package.description">Description</a></p>
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<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Interface Summary table, listing interfaces, and an explanation">
<caption><span>Interface Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Interface</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../javax/jdo/query/BooleanExpression.html" title="interface in javax.jdo.query">BooleanExpression</a></td>
<td class="colLast">
<div class="block">Representation of a boolean expression.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javax/jdo/query/ByteExpression.html" title="interface in javax.jdo.query">ByteExpression</a></td>
<td class="colLast">
<div class="block">Representation of a byte expression.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javax/jdo/query/CharacterExpression.html" title="interface in javax.jdo.query">CharacterExpression</a></td>
<td class="colLast">
<div class="block">Representation of a character expression.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javax/jdo/query/CollectionExpression.html" title="interface in javax.jdo.query">CollectionExpression</a>&lt;T extends <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;E&gt;,E&gt;</td>
<td class="colLast">
<div class="block">Representation of a collection in a query.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javax/jdo/query/ComparableExpression.html" title="interface in javax.jdo.query">ComparableExpression</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">Representation of an expression for a Java type that implements java.lang.Comparable.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javax/jdo/query/DateExpression.html" title="interface in javax.jdo.query">DateExpression</a></td>
<td class="colLast">
<div class="block">Representation of a date in a query.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javax/jdo/query/DateTimeExpression.html" title="interface in javax.jdo.query">DateTimeExpression</a></td>
<td class="colLast">
<div class="block">Representation of a date-time type in a query.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javax/jdo/query/EnumExpression.html" title="interface in javax.jdo.query">EnumExpression</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">Representation of an Enum in a query.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javax/jdo/query/Expression.html" title="interface in javax.jdo.query">Expression</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">Representation of an expression in a query.</div>
</td>
</tr>
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<td class="colFirst"><a href="../../../javax/jdo/query/IfThenElseExpression.html" title="interface in javax.jdo.query">IfThenElseExpression</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">Representation of an IF-THEN-ELSE expression.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javax/jdo/query/ListExpression.html" title="interface in javax.jdo.query">ListExpression</a>&lt;T extends <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;E&gt;,E&gt;</td>
<td class="colLast">
<div class="block">Representation of a List in a query.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javax/jdo/query/LocalDateExpression.html" title="interface in javax.jdo.query">LocalDateExpression</a></td>
<td class="colLast">
<div class="block">Representation of a java.time.LocalDate in a query.</div>
</td>
</tr>
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<td class="colFirst"><a href="../../../javax/jdo/query/LocalDateTimeExpression.html" title="interface in javax.jdo.query">LocalDateTimeExpression</a></td>
<td class="colLast">
<div class="block">Representation of a java.time.LocalDateTime type in a query.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javax/jdo/query/LocalTimeExpression.html" title="interface in javax.jdo.query">LocalTimeExpression</a></td>
<td class="colLast">
<div class="block">Representation of a java.time.LocalTime in a query.</div>
</td>
</tr>
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<td class="colFirst"><a href="../../../javax/jdo/query/MapExpression.html" title="interface in javax.jdo.query">MapExpression</a>&lt;T extends <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;K,V&gt;,K,V&gt;</td>
<td class="colLast">
<div class="block">Representation of a map in a query.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javax/jdo/query/NumericExpression.html" title="interface in javax.jdo.query">NumericExpression</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">Representation of a numeric expression.</div>
</td>
</tr>
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<td class="colFirst"><a href="../../../javax/jdo/query/ObjectExpression.html" title="interface in javax.jdo.query">ObjectExpression</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">Representation of an Object as an expression.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javax/jdo/query/OptionalExpression.html" title="interface in javax.jdo.query">OptionalExpression</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">Representation of an Optional type in a query.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javax/jdo/query/OrderExpression.html" title="interface in javax.jdo.query">OrderExpression</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">Expression representing the ordering using an expression and a direction.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javax/jdo/query/PersistableExpression.html" title="interface in javax.jdo.query">PersistableExpression</a>&lt;T&gt;</td>
<td class="colLast">
<div class="block">Expression representing a persistable object in a query (e.g alias.persistableField).</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javax/jdo/query/StringExpression.html" title="interface in javax.jdo.query">StringExpression</a></td>
<td class="colLast">
<div class="block">Representation of a string in a query.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javax/jdo/query/SubqueryExpression.html" title="interface in javax.jdo.query">SubqueryExpression</a></td>
<td class="colLast">
<div class="block">Representation of a subquery in a query.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../javax/jdo/query/TimeExpression.html" title="interface in javax.jdo.query">TimeExpression</a></td>
<td class="colLast">
<div class="block">Representation of a time in a query.</div>
</td>
</tr>
</tbody>
</table>
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<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Enum Summary table, listing enums, and an explanation">
<caption><span>Enum Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Enum</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
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<td class="colFirst"><a href="../../../javax/jdo/query/OrderExpression.OrderDirection.html" title="enum in javax.jdo.query">OrderExpression.OrderDirection</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../javax/jdo/query/OrderExpression.OrderNullsPosition.html" title="enum in javax.jdo.query">OrderExpression.OrderNullsPosition</a></td>
<td class="colLast">&nbsp;</td>
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<h2 title="Package javax.jdo.query Description">Package javax.jdo.query Description</h2>
<div class="block">Package providing expressions for building a typed JDOQL query.
Fields/Params/Vars of a persistable type are represented as <i>Expression</i>.
All generated "Q" classes extend "PersistableExpression", and provide the fields/properties
of the persistable class as Expression types.
Fields/Params/Vars of a container type are represented as <i>CollectionExpression</i>, <i>MapExpression</i>.
Fields/Params/Vars of other types, or literals are represented by
<ul>
<li>StringExpression</li>
<li>EnumExpression</li>
<li>NumericExpression</li>
<li>BooleanExpression</li>
<li>ByteExpression</li>
<li>CharacterExpression</li>
<li>DateExpression</li>
<li>DateTimeExpression</li>
<li>TimeExpression</li>
<li>ObjectExpression</li>
</ul></div>
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