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org.apache.openjpa.jdbc.kernel.exps (OpenJPA Parent POM 2.1.0 API)
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<H2>
Package org.apache.openjpa.jdbc.kernel.exps
</H2>
<strong>OpenJPA-JDBC Expression Tree</strong>
<P>
<B>See:</B>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<A HREF="#package_description"><B>Description</B></A>
<P>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Interface Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Exp.html" title="interface in org.apache.openjpa.jdbc.kernel.exps">Exp</A></B></TD>
<TD>An Expression represents a query ready for execution.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html" title="interface in org.apache.openjpa.jdbc.kernel.exps">FilterValue</A></B></TD>
<TD>The simplified public view of any non-operator in a query filter,
including constants, variables, and object fields.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/JDBCAggregateListener.html" title="interface in org.apache.openjpa.jdbc.kernel.exps">JDBCAggregateListener</A></B></TD>
<TD>JDBC extension to the <A HREF="../../../../../../org/apache/openjpa/kernel/exps/AggregateListener.html" title="interface in org.apache.openjpa.kernel.exps"><CODE>AggregateListener</CODE></A>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/JDBCFilterListener.html" title="interface in org.apache.openjpa.jdbc.kernel.exps">JDBCFilterListener</A></B></TD>
<TD>JDBC extension to the <A HREF="../../../../../../org/apache/openjpa/kernel/exps/FilterListener.html" title="interface in org.apache.openjpa.kernel.exps"><CODE>FilterListener</CODE></A>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/JDBCPath.html" title="interface in org.apache.openjpa.jdbc.kernel.exps">JDBCPath</A></B></TD>
<TD>A path represents a traversal into fields of a candidate object.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Val.html" title="interface in org.apache.openjpa.jdbc.kernel.exps">Val</A></B></TD>
<TD>A Value represents any non-operator in a query filter, including
constants, variables, and object fields.</TD>
</TR>
</TABLE>
&nbsp;
<P>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Class Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Abs.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Abs</A></B></TD>
<TD>Absolute value.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/AbstractVal.html" title="class in org.apache.openjpa.jdbc.kernel.exps">AbstractVal</A></B></TD>
<TD>Abstract value for easy extension.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Aggregate.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Aggregate</A></B></TD>
<TD>Aggregate listener that evaluates to a value.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/All.html" title="class in org.apache.openjpa.jdbc.kernel.exps">All</A></B></TD>
<TD>All.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/AndExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">AndExpression</A></B></TD>
<TD>Combines two expressions.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Any.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Any</A></B></TD>
<TD>Any.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Args.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Args</A></B></TD>
<TD>A list of arguments to a multi-argument function.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Avg.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Avg</A></B></TD>
<TD>Average.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/BinaryOpExpState.html" title="class in org.apache.openjpa.jdbc.kernel.exps">BinaryOpExpState</A></B></TD>
<TD>Expression tree state for a binary operator.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/BindVariableAndExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">BindVariableAndExpression</A></B></TD>
<TD>Combines a bind variable expression with another.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/BindVariableExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">BindVariableExpression</A></B></TD>
<TD>Binds a variable to a value.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/CoalesceExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">CoalesceExpression</A></B></TD>
<TD>Coalesce expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/CollectionParam.html" title="class in org.apache.openjpa.jdbc.kernel.exps">CollectionParam</A></B></TD>
<TD>A collection-valued input parameter in an in-expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/CollectionParam.ParamExpState.html" title="class in org.apache.openjpa.jdbc.kernel.exps">CollectionParam.ParamExpState</A></B></TD>
<TD>Expression state.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/CompareEqualExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">CompareEqualExpression</A></B></TD>
<TD>Compares two values for equality.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/CompareExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">CompareExpression</A></B></TD>
<TD>Compares two values.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Concat.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Concat</A></B></TD>
<TD>Concatenate one string with another.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Const.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Const</A></B></TD>
<TD>A literal or parameter in the filter.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Const.ConstExpState.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Const.ConstExpState</A></B></TD>
<TD>Constant expression state.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/ConstGetObjectId.html" title="class in org.apache.openjpa.jdbc.kernel.exps">ConstGetObjectId</A></B></TD>
<TD>Obtaining the object id of a constant.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/ConstInstanceofExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">ConstInstanceofExpression</A></B></TD>
<TD>Tests whether a value is an instance of a class.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/ConstPath.html" title="class in org.apache.openjpa.jdbc.kernel.exps">ConstPath</A></B></TD>
<TD>A field traversal starting with a constant filter parameter.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/ContainsExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">ContainsExpression</A></B></TD>
<TD>Tests whether one value contains another.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/ContainsKeyExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">ContainsKeyExpression</A></B></TD>
<TD>Tests whether a map value contains a key.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Count.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Count</A></B></TD>
<TD>Count non-null values.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/CurrentDate.html" title="class in org.apache.openjpa.jdbc.kernel.exps">CurrentDate</A></B></TD>
<TD>A literal current DATE/TIME/TIMESTAMP value in a filter.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/DatastoreFunction.html" title="class in org.apache.openjpa.jdbc.kernel.exps">DatastoreFunction</A></B></TD>
<TD>A unary operator that executes a datastore specific function with zero or more arguments.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Distinct.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Distinct</A></B></TD>
<TD>Distinct the specified path.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/EmptyExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">EmptyExpression</A></B></TD>
<TD>An empty expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/EndsWithExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">EndsWithExpression</A></B></TD>
<TD>Test if one string ends with another.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/EqualExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">EqualExpression</A></B></TD>
<TD>Compares two values.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/EqualTypeExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">EqualTypeExpression</A></B></TD>
<TD>Compares two entity types.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/ExpContext.html" title="class in org.apache.openjpa.jdbc.kernel.exps">ExpContext</A></B></TD>
<TD>Expression tree context.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/ExpState.html" title="class in org.apache.openjpa.jdbc.kernel.exps">ExpState</A></B></TD>
<TD>Expression tree state.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Extension.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Extension</A></B></TD>
<TD>Filter listener that evaluates to a value.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValueImpl.html" title="class in org.apache.openjpa.jdbc.kernel.exps">FilterValueImpl</A></B></TD>
<TD>Implementation of <A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html" title="interface in org.apache.openjpa.jdbc.kernel.exps"><CODE>FilterValue</CODE></A> that wraps a <A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Val.html" title="interface in org.apache.openjpa.jdbc.kernel.exps"><CODE>Val</CODE></A>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/GeneralCaseExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">GeneralCaseExpression</A></B></TD>
<TD>General case expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/GetColumn.html" title="class in org.apache.openjpa.jdbc.kernel.exps">GetColumn</A></B></TD>
<TD>Returns the SQL alias of the named column for use in a query.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/GetMapValue.html" title="class in org.apache.openjpa.jdbc.kernel.exps">GetMapValue</A></B></TD>
<TD>Returns the value of the given map's key.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/GetObjectId.html" title="class in org.apache.openjpa.jdbc.kernel.exps">GetObjectId</A></B></TD>
<TD>Select the oid value of an object; typically used in projections.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/HasContainsExpressionVisitor.html" title="class in org.apache.openjpa.jdbc.kernel.exps">HasContainsExpressionVisitor</A></B></TD>
<TD>Determines whether the visited expressions include a "contains" expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Index.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Index</A></B></TD>
<TD>Index.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/IndexOf.html" title="class in org.apache.openjpa.jdbc.kernel.exps">IndexOf</A></B></TD>
<TD>Find the index of one string within another.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/InExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">InExpression</A></B></TD>
<TD>Tests whether a value is IN a collection.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/InKeyExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">InKeyExpression</A></B></TD>
<TD>Tests whether a value is IN a map key set.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/InstanceofExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">InstanceofExpression</A></B></TD>
<TD>Tests whether the given path is an instance of the given class.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/InSubQExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">InSubQExpression</A></B></TD>
<TD>Tests whether a value is IN a subquery.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/InValueExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">InValueExpression</A></B></TD>
<TD>Tests whether a value is IN a map value collection.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/IsEmptyExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">IsEmptyExpression</A></B></TD>
<TD>Tests whether the given value is empty.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/IsNotEmptyExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">IsNotEmptyExpression</A></B></TD>
<TD>Tests whether the given value is not empty.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/JDBCExpressionFactory.html" title="class in org.apache.openjpa.jdbc.kernel.exps">JDBCExpressionFactory</A></B></TD>
<TD>Expression factory implementation that can be used to execute queries
via SQL.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/JDBCStringContains.html" title="class in org.apache.openjpa.jdbc.kernel.exps">JDBCStringContains</A></B></TD>
<TD><B>Deprecated.</B>&nbsp;<I>Use <code>matches()</code> instead.</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/JDBCWildcardMatch.html" title="class in org.apache.openjpa.jdbc.kernel.exps">JDBCWildcardMatch</A></B></TD>
<TD><B>Deprecated.</B>&nbsp;<I>Use <code>matches()</code> instead.</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Lit.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Lit</A></B></TD>
<TD>A literal value in a filter.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/MapEntry.html" title="class in org.apache.openjpa.jdbc.kernel.exps">MapEntry</A></B></TD>
<TD>Returns the Map.Entry<K,V> of a map value.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/MapEntry.EntryExpState.html" title="class in org.apache.openjpa.jdbc.kernel.exps">MapEntry.EntryExpState</A></B></TD>
<TD>Expression state.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/MapKey.html" title="class in org.apache.openjpa.jdbc.kernel.exps">MapKey</A></B></TD>
<TD>Returns the key of a map value.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/MapKey.KeyExpState.html" title="class in org.apache.openjpa.jdbc.kernel.exps">MapKey.KeyExpState</A></B></TD>
<TD>Expression state.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/MatchesExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">MatchesExpression</A></B></TD>
<TD>Test if a string matches a regexp.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Math.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Math</A></B></TD>
<TD>Value produced by a mathematical operation on two values.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Max.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Max</A></B></TD>
<TD>Maximum.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Min.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Min</A></B></TD>
<TD>Minimum.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/NotContainsExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">NotContainsExpression</A></B></TD>
<TD>Negates a contains expression using a subselect to make sure no
elements meet the criteria.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/NotEqualExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">NotEqualExpression</A></B></TD>
<TD>Compares two values.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/NotEqualTypeExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">NotEqualTypeExpression</A></B></TD>
<TD>Compares two entity types.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/NotExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">NotExpression</A></B></TD>
<TD>Negates an expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Null.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Null</A></B></TD>
<TD>A literal null value in a filter.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/NullIfExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">NullIfExpression</A></B></TD>
<TD>NullIf expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/OrExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">OrExpression</A></B></TD>
<TD>Combines two expressions.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Param.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Param</A></B></TD>
<TD>A parameter in a filter.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Param.ParamExpState.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Param.ParamExpState</A></B></TD>
<TD>Expression state.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/PCPath.html" title="class in org.apache.openjpa.jdbc.kernel.exps">PCPath</A></B></TD>
<TD>A path represents a traversal into fields of a candidate object.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/PCPath.PathExpState.html" title="class in org.apache.openjpa.jdbc.kernel.exps">PCPath.PathExpState</A></B></TD>
<TD>Expression state.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/QueryExpressionsState.html" title="class in org.apache.openjpa.jdbc.kernel.exps">QueryExpressionsState</A></B></TD>
<TD>Struct to hold the state of a query expressions instance.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/SelectConstructor.html" title="class in org.apache.openjpa.jdbc.kernel.exps">SelectConstructor</A></B></TD>
<TD>Turns parsed queries into selects.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/SimpleCaseExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">SimpleCaseExpression</A></B></TD>
<TD>Simple case expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Size.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Size</A></B></TD>
<TD>Size.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/SQLEmbed.html" title="class in org.apache.openjpa.jdbc.kernel.exps">SQLEmbed</A></B></TD>
<TD>Simple listener which embeds its SQL argument into the query.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/SQLExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">SQLExpression</A></B></TD>
<TD><B>Deprecated.</B>&nbsp;<I>Use <A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/SQLEmbed.html" title="class in org.apache.openjpa.jdbc.kernel.exps"><CODE>SQLEmbed</CODE></A> directly</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/SQLValue.html" title="class in org.apache.openjpa.jdbc.kernel.exps">SQLValue</A></B></TD>
<TD><B>Deprecated.</B>&nbsp;<I>Use <A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/SQLEmbed.html" title="class in org.apache.openjpa.jdbc.kernel.exps"><CODE>SQLEmbed</CODE></A> directly</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Sqrt.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Sqrt</A></B></TD>
<TD>Square root.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/StartsWithExpression.html" title="class in org.apache.openjpa.jdbc.kernel.exps">StartsWithExpression</A></B></TD>
<TD>Test if one string starts with another.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/StringFunction.html" title="class in org.apache.openjpa.jdbc.kernel.exps">StringFunction</A></B></TD>
<TD>A JDBC string function.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/StringLength.html" title="class in org.apache.openjpa.jdbc.kernel.exps">StringLength</A></B></TD>
<TD>Returns the number of characters in a string.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/SubQ.html" title="class in org.apache.openjpa.jdbc.kernel.exps">SubQ</A></B></TD>
<TD>A subquery.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Substring.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Substring</A></B></TD>
<TD>Take a substring of a string.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Sum.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Sum</A></B></TD>
<TD>Sum.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/ToLowerCase.html" title="class in org.apache.openjpa.jdbc.kernel.exps">ToLowerCase</A></B></TD>
<TD>Lower-cases a string.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/ToUpperCase.html" title="class in org.apache.openjpa.jdbc.kernel.exps">ToUpperCase</A></B></TD>
<TD>Upper-cases a string.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Trim.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Trim</A></B></TD>
<TD>Returns the number of characters in a string.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Type.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Type</A></B></TD>
<TD>Entity Type expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/TypeLit.html" title="class in org.apache.openjpa.jdbc.kernel.exps">TypeLit</A></B></TD>
<TD>A type literal value.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/UnaryOp.html" title="class in org.apache.openjpa.jdbc.kernel.exps">UnaryOp</A></B></TD>
<TD>Value produced by a unary operation on a value.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/Variable.html" title="class in org.apache.openjpa.jdbc.kernel.exps">Variable</A></B></TD>
<TD>A variable in a filter.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/WhenCondition.html" title="class in org.apache.openjpa.jdbc.kernel.exps">WhenCondition</A></B></TD>
<TD>Value produced by a when_clause of a case expression.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/WhenScalar.html" title="class in org.apache.openjpa.jdbc.kernel.exps">WhenScalar</A></B></TD>
<TD>Value produced by a when_clause of a case expression.</TD>
</TR>
</TABLE>
&nbsp;
<P>
<A NAME="package_description"><!-- --></A><H2>
Package org.apache.openjpa.jdbc.kernel.exps Description
</H2>
<P>
<p><strong>OpenJPA-JDBC Expression Tree</strong></p>
<P>
<P>
<DL>
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