org.grouplens.grapht.context

Interface ContextElementMatcher

All Superinterfaces:

Serializable

public interface ContextElementMatcher
extends Serializable

ContextElementMatcher represents a "pattern" that can match an element within the dependency context created as a Resolver follows a dependency hierarchy. The dependency context is an ordered list of satisfactions and the qualifiers of the desires they satisfy. The first satisfaction is the root satisfaction, a null satisfaction of type void.

ContextMatchers can match or apply to these nodes and Qualifiers within a dependency context. As an example, the reflection based ContextElementMatcher matches nodes that are sub-types of the type the matcher was configured with.

Author:

GroupLens Research

Method Summary

Methods

Modifier and Type	Method and Description
MatchElement	apply(org.apache.commons.lang3.tuple.Pair<Satisfaction,InjectionPoint> n) Return true if this ContextElementMatcher matches or applies to the given Satisfaction and Qualifier.

Method Detail

apply

MatchElement apply(org.apache.commons.lang3.tuple.Pair<Satisfaction,InjectionPoint> n)

Return true if this ContextElementMatcher matches or applies to the given Satisfaction and Qualifier.

Parameters:

n - The node and attributes in the current dependency context

Returns:

A match if this matcher matches the provided node label, or false if there is no match.