net.shibboleth.utilities.java.support.logic

Class StrategyIndirectedPredicate<T1,T2>

java.lang.Object

net.shibboleth.utilities.java.support.logic.StrategyIndirectedPredicate<T1,T2>

Type Parameters:

T1 - type of object used as the source of the data to compare

T2 - type of object being compared

All Implemented Interfaces:

com.google.common.base.Predicate<T1>

public class StrategyIndirectedPredicate<T1,T2>
extends Object
implements com.google.common.base.Predicate<T1>

Generic predicate that checks a candidate Object returned by a lookup function against an injected predicate.

Field Summary

Fields

Modifier and Type	Field and Description
private com.google.common.base.Function<T1,T2>	objectLookupStrategy Lookup strategy for object.
private com.google.common.base.Predicate<T2>	predicate Predicate to apply to indirected object.

Constructor Summary

Constructors

Constructor and Description
StrategyIndirectedPredicate(com.google.common.base.Function<T1,T2> objectStrategy, Collection<T2> collection) Constructor that simplifies constructing a test for containment in a collection, which is a common use case.
StrategyIndirectedPredicate(com.google.common.base.Function<T1,T2> objectStrategy, com.google.common.base.Predicate<T2> pred) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	apply(T1 input)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.base.Predicate

equals

Field Detail

objectLookupStrategy

@Nonnull
private final com.google.common.base.Function<T1,T2> objectLookupStrategy

Lookup strategy for object.

predicate

@Nonnull
private final com.google.common.base.Predicate<T2> predicate

Predicate to apply to indirected object.

Constructor Detail

StrategyIndirectedPredicate

public StrategyIndirectedPredicate(@Nonnull
                           com.google.common.base.Function<T1,T2> objectStrategy,
                           @Nonnull
                           com.google.common.base.Predicate<T2> pred)

Constructor.

Parameters:

objectStrategy - lookup strategy for object

pred - the predicate to apply

StrategyIndirectedPredicate

public StrategyIndirectedPredicate(@Nonnull
                           com.google.common.base.Function<T1,T2> objectStrategy,
                           @Nonnull@NonnullElements
                           Collection<T2> collection)

Constructor that simplifies constructing a test for containment in a collection, which is a common use case.

Parameters:

objectStrategy - lookup strategy for object

collection - a collection to test for containment

Method Detail

apply

public boolean apply(@Nullable
            T1 input)

Specified by:

apply in interface com.google.common.base.Predicate<T1>