com.solarmetric.rd.kodo.impl.jdbc.query.exp
Class ContainsExpression

java.lang.Object
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  +--com.solarmetric.rd.kodo.impl.jdbc.query.exp.CompareEqualExpression
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        +--com.solarmetric.rd.kodo.impl.jdbc.query.exp.EqualExpression
              |
              +--com.solarmetric.rd.kodo.impl.jdbc.query.exp.ContainsExpression

All Implemented Interfaces:

Expression, JDBCExpression

Direct Known Subclasses:

ContainsKeyExpression

public class ContainsExpression

extends EqualExpression

Tests whether one value contains another.

Constructor Summary

ContainsExpression(com.solarmetric.rd.kodo.impl.jdbc.query.exp.JDBCValue val1, com.solarmetric.rd.kodo.impl.jdbc.query.exp.JDBCValue val2)
Constructor.

Method Summary

protected boolean	compareValueToNull() Subclasses can override this method if, when they compare to null, they compare the field value rather than the entire field to null.
void	initialize(com.solarmetric.rd.kodo.runtime.PersistenceManagerImpl pm, com.solarmetric.rd.kodo.impl.jdbc.runtime.Select select, java.util.Map containsCounts) Initialize the expression.

Methods inherited from class com.solarmetric.rd.kodo.impl.jdbc.query.exp.EqualExpression

appendTo

Methods inherited from class com.solarmetric.rd.kodo.impl.jdbc.query.exp.CompareEqualExpression

appendOrdering, appendTo, getJoins, getValue1, getValue2

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ContainsExpression

public ContainsExpression(com.solarmetric.rd.kodo.impl.jdbc.query.exp.JDBCValue val1,
                          com.solarmetric.rd.kodo.impl.jdbc.query.exp.JDBCValue val2)

Constructor. Supply values to test.

Method Detail

initialize

public void initialize(com.solarmetric.rd.kodo.runtime.PersistenceManagerImpl pm,
                       com.solarmetric.rd.kodo.impl.jdbc.runtime.Select select,
                       java.util.Map containsCounts)

Description copied from interface: JDBCExpression

Initialize the expression. This method should recursively initialize any sub-expressions or values. It should also cache the Joins instance containing the joins for this expression.

Specified by:

initialize in interface JDBCExpression

Overrides:

initialize in class CompareEqualExpression

Parameters:

pm - the persistence manager for this query

select - manage joins made in each query clause

containsCounts - map of relation paths to the number of times the paths appear in a contains() expression; used to ensure paths used for contains() within the same AND expression used different aliases

compareValueToNull

protected boolean compareValueToNull()

Description copied from class: CompareEqualExpression

Subclasses can override this method if, when they compare to null, they compare the field value rather than the entire field to null. For example, field.contains (null) should compare the field value to null, not the field itself.

Overrides:

compareValueToNull in class CompareEqualExpression