org.ceryle.wiki.plugin.query.operators
Class FromModifier

java.lang.Object
  org.ceryle.wiki.plugin.query.operators.Operator
      org.ceryle.wiki.plugin.query.operators.FromModifier

All Implemented Interfaces:

Modifier

public class FromModifier
extends Operator
implements Modifier

The FROM Modifier (an Operator), a component of a query expression.

This class is equivalent to (and the replacement of) ByModifier. This is used so that the opposite of the "TO" term is "FROM" rather than "BY".

Author:

Murray Altheim, John Volkar (john.volkar at gmail.com)

Field Summary

Fields inherited from class org.ceryle.wiki.plugin.query.operators.Operator

_ALL, _AND, _ANY, _BY, _FROM, _IS, _NOT, _NULL, _OR, _TO

Constructor Summary

FromModifier()

Method Summary

boolean	applyModifier(ReferenceInfoProvider refInfoProvider, String candidateName, String termName) Evaluates to true if candidateName is linked to by the termName.
boolean	evaluateOperator(Operand left, Operand right, Modifier modifier, ReferenceInfoProvider refInfoProvider, String pageName)
boolean	isInfix()

Methods inherited from class org.ceryle.wiki.plugin.query.operators.Operator

getName, isPrefix, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

FromModifier

public FromModifier()

Method Detail

isInfix

public boolean isInfix()

Overrides:

isInfix in class Operator

evaluateOperator

public boolean evaluateOperator(Operand left,
                                Operand right,
                                Modifier modifier,
                                ReferenceInfoProvider refInfoProvider,
                                String pageName)
                         throws QueryException

Specified by:

evaluateOperator in class Operator

Throws:

QueryException

applyModifier

public boolean applyModifier(ReferenceInfoProvider refInfoProvider,
                             String candidateName,
                             String termName)

Evaluates to true if candidateName is linked to by the termName.

Specified by:

applyModifier in interface Modifier

See Also:

Modifier.applyModifier(ReferenceInfoProvider, String, String)