com.github.fge.grappa.matchers.delegate

Class OptionalMatcher

java.lang.Object

com.github.fge.grappa.misc.ImmutableGraphNode<Matcher>

com.github.fge.grappa.matchers.base.AbstractMatcher

com.github.fge.grappa.matchers.base.CustomDefaultLabelMatcher<OptionalMatcher>

com.github.fge.grappa.matchers.delegate.OptionalMatcher

All Implemented Interfaces:

Matcher, GraphNode<Matcher>, Rule, Cloneable

public final class OptionalMatcher
extends CustomDefaultLabelMatcher<OptionalMatcher>

A Matcher that tries its submatcher once against the input and always succeeds.

Constructor Summary

Constructors

Constructor and Description
OptionalMatcher(Rule subRule)

Method Summary

Methods

Modifier and Type	Method and Description
MatcherType	getType() Returns the type of this matcher
<V> boolean	match(MatcherContext<V> context) Tries a match on the given MatcherContext.

Methods inherited from class com.github.fge.grappa.matchers.base.CustomDefaultLabelMatcher

getLabel, hasCustomLabel

Methods inherited from class com.github.fge.grappa.matchers.base.AbstractMatcher

getSubContext, label, toString

Methods inherited from class com.github.fge.grappa.misc.ImmutableGraphNode

getChildren

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.github.fge.grappa.misc.GraphNode

getChildren

Constructor Detail

OptionalMatcher

public OptionalMatcher(Rule subRule)

Method Detail

getType

public MatcherType getType()

Description copied from interface: Matcher

Returns the type of this matcher

Returns:

the type

See Also:

MatcherType

match

public <V> boolean match(MatcherContext<V> context)

Description copied from interface: Matcher

Tries a match on the given MatcherContext.

Parameters:

context - the MatcherContext

Returns:

true if the match was successful