net.ontopia.topicmaps.query.impl.rdbms
Class EqualsPredicate

java.lang.Object
  net.ontopia.topicmaps.query.impl.basic.EqualsPredicate
      net.ontopia.topicmaps.query.impl.rdbms.EqualsPredicate

All Implemented Interfaces:

BasicPredicateIF, JDOPredicateIF, PredicateIF

public class EqualsPredicate
extends EqualsPredicate
implements JDOPredicateIF

INTERNAL: Implements the '=' predicate.

Constructor Summary

EqualsPredicate()

Method Summary

boolean	buildQuery(QueryBuilder builder, java.util.List expressions, java.util.List arguments) INTERNAL: Registers JDOExpressionsIF for this predicate with the query builder.
boolean	isRecursive() INTERNAL:
void	prescan(QueryBuilder builder, java.util.List arguments) INTERNAL: This method will be called before building the query.

Methods inherited from class net.ontopia.topicmaps.query.impl.basic.EqualsPredicate

getCost, getName, getSignature, satisfy

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.ontopia.topicmaps.query.impl.basic.BasicPredicateIF

satisfy

Methods inherited from interface net.ontopia.topicmaps.query.parser.PredicateIF

getCost, getName, getSignature

Constructor Detail

EqualsPredicate

public EqualsPredicate()

Method Detail

isRecursive

public boolean isRecursive()

Description copied from interface: JDOPredicateIF

INTERNAL:

Specified by:

isRecursive in interface JDOPredicateIF

prescan

public void prescan(QueryBuilder builder,
                    java.util.List arguments)

Description copied from interface: JDOPredicateIF

INTERNAL: This method will be called before building the query. It is used mainly for analyzing the predicate.

Specified by:

prescan in interface JDOPredicateIF

buildQuery

public boolean buildQuery(QueryBuilder builder,
                          java.util.List expressions,
                          java.util.List arguments)
                   throws InvalidQueryException

Description copied from interface: JDOPredicateIF

INTERNAL: Registers JDOExpressionsIF for this predicate with the query builder.

Specified by:

buildQuery in interface JDOPredicateIF

Returns:

true if predicate was mapped to JDO expression; false if the predicate could not be mapped to an JDO expression.

Throws:

InvalidQueryException