Package com.yahoo.prelude.semantics.rule

Class ConditionReference

java.lang.Object

com.yahoo.prelude.semantics.rule.Condition

com.yahoo.prelude.semantics.rule.ConditionReference

public class ConditionReference
extends Condition

A reference to a named condition

Author:

bratseth

Nested Class Summary

Nested classes/interfaces inherited from class com.yahoo.prelude.semantics.rule.Condition

Condition.Anchor

Constructor Summary

Constructors

Constructor	Description
ConditionReference(java.lang.String conditionName)
ConditionReference(java.lang.String label, java.lang.String conditionName)

Method Summary

Modifier and Type	Method	Description
boolean	doesMatch(RuleEvaluation e)	Returns whether this condition matches the given evaluation at the current location of the evaluation.
java.lang.String	getConditionName()	Returns the name of the referenced rule, never null
protected boolean	hasOpenChoicepoint(RuleEvaluation e)	Returns whether there is an open choice in this or any of its subconditions.
protected boolean	isDefaultContextName()
void	makeReferences(RuleBase ruleBase)	Override if references needs to be set in this condition of its children
void	setConditionName(java.lang.String name)
protected java.lang.String	toInnerString()	All instances of this produces a parseable string output

Methods inherited from class com.yahoo.prelude.semantics.rule.Condition

getAnchor, getContextName, getLabel, getLabelString, getMatchInfo, getMatchInfoString, getNameSpace, getParent, isReferable, labelMatches, labelMatches, matches, matchesEndAnchor, matchesStartAnchor, postMatchHook, preMatchHook, setAnchor, setContextName, setLabel, setNameSpace, toString, traceResult

Methods inherited from class java.lang.Object

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

Constructor Detail

ConditionReference

public ConditionReference(java.lang.String conditionName)

ConditionReference

public ConditionReference(java.lang.String label,
                          java.lang.String conditionName)

Method Detail

getConditionName

public java.lang.String getConditionName()

Returns the name of the referenced rule, never null

setConditionName

public void setConditionName(java.lang.String name)

doesMatch

public boolean doesMatch(RuleEvaluation e)

Description copied from class: Condition

Returns whether this condition matches the given evaluation at the current location of the evaluation. If there is a match, the evaluation must be advanced to the location beyond the matching item(s) before this method returns.

Specified by:

doesMatch in class Condition

makeReferences

public void makeReferences(RuleBase ruleBase)

Description copied from class: Condition

Override if references needs to be set in this condition of its children

Overrides:

makeReferences in class Condition

hasOpenChoicepoint

protected boolean hasOpenChoicepoint(RuleEvaluation e)

Description copied from class: Condition

Returns whether there is an open choice in this or any of its subconditions. Returns false by default, must be overriden by conditions which may generate choices open accross multiple calls to matches, or contain such conditions.

Overrides:

hasOpenChoicepoint in class Condition

isDefaultContextName

protected boolean isDefaultContextName()

Overrides:

isDefaultContextName in class Condition

toInnerString

protected java.lang.String toInnerString()

Description copied from class: Condition

All instances of this produces a parseable string output

Specified by:

toInnerString in class Condition