Package org.apache.commons.collections4.functors

Class IdentityPredicate<T>

java.lang.Object

org.apache.commons.collections4.functors.IdentityPredicate<T>

All Implemented Interfaces:

Serializable, Predicate<T>, Predicate<T>

public final class IdentityPredicate<T>
extends Object
implements Predicate<T>, Serializable

Predicate implementation that returns true if the input is the same object as the one stored in this predicate.

Since:

3.0

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
IdentityPredicate(T object)	Constructor that performs no validation.

Method Summary

Modifier and Type	Method	Description
boolean	evaluate(T object)	Evaluates the predicate returning true if the input object is identical to the stored object.
T	getValue()	Gets the value.
static <T> Predicate<T>	identityPredicate(T object)	Factory to create the identity predicate.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Predicate

and, negate, or

Methods inherited from interface org.apache.commons.collections4.Predicate

test

Constructor Details

IdentityPredicate

public IdentityPredicate(T object)

Constructor that performs no validation. Use identityPredicate if you want that.

Parameters:

object - the object to compare to

Method Details

identityPredicate

public static <T> Predicate<T> identityPredicate(T object)

Factory to create the identity predicate.

Type Parameters:

T - the type that the predicate queries

Parameters:

object - the object to compare to

Returns:

the predicate

evaluate

public boolean evaluate(T object)

Evaluates the predicate returning true if the input object is identical to the stored object.

Specified by:

evaluate in interface Predicate<T>

Parameters:

object - the input object

Returns:

true if input is the same object as the stored value

getValue

public T getValue()

Gets the value.

Returns:

the value

Since:

3.1