com.yahoo.prelude.semantics.rule

Class NotCondition

java.lang.Object

com.yahoo.prelude.semantics.rule.Condition

com.yahoo.prelude.semantics.rule.NotCondition

public class NotCondition
extends Condition

A condition which matches if its contained condition doesn't. NotCondition inverts the term checking but not the label checking. That is, it means "label:!term", it does not mean "!label:term".

Author:

bratseth

Nested Class Summary

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

Condition.Anchor

Field Summary

Fields

Modifier and Type	Field and Description
private Condition	condition

Constructor Summary

Constructors

Constructor and Description
NotCondition(Condition condition)

Method Summary

Modifier and Type	Method and Description
protected boolean	doesMatch(RuleEvaluation e) Returns whether this condition matches the given evaluation at the current location of the evaluation.
Condition	getCondtiion()
protected boolean	hasOpenChoicepoint(RuleEvaluation evaluation) Returns whether there is an open choice in this or any of its subconditions.
void	makeReferences(RuleBase ruleBase) Override if references needs to be set in this condition of its children
void	setCondition(Condition condition)
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, isDefaultContextName, isReferable, labelMatches, labelMatches, matches, matchesEndAnchor, matchesStartAnchor, postMatchHook, preMatchHook, setAnchor, setContextName, setLabel, setNameSpace, setParent, toString, traceResult

Methods inherited from class java.lang.Object

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

Field Detail

condition

private Condition condition

Constructor Detail

NotCondition

public NotCondition(Condition condition)

Method Detail

getCondtiion

public Condition getCondtiion()

setCondition

public void setCondition(Condition condition)

doesMatch

protected 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

toInnerString

public String toInnerString()

Description copied from class: Condition

All instances of this produces a parseable string output

Specified by:

toInnerString 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 evaluation)

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