Package org.apache.commons.collections4.functors

Class EqualPredicate<T>

java.lang.Object

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

All Implemented Interfaces:

Serializable, Predicate<T>

public final class EqualPredicate<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 by equals.

Since:

3.0

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
EqualPredicate(T object)	Constructor that performs no validation.
EqualPredicate(T object, Equator<T> equator)	Constructor that performs no validation.

Method Summary

Modifier and Type	Method	Description
static <T> Predicate<T>	equalPredicate(T object)	Factory to create the predicate.
static <T> Predicate<T>	equalPredicate(T object, Equator<T> equator)	Factory to create the identity predicate.
boolean	evaluate(T object)	Evaluates the predicate returning true if the input equals the stored value.
Object	getValue()	Gets the value.

Methods inherited from class java.lang.Object

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

Constructor Detail

EqualPredicate

public EqualPredicate(T object)

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

Parameters:

object - the object to compare to

EqualPredicate

public EqualPredicate(T object,
                      Equator<T> equator)

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

Parameters:

object - the object to compare to

equator - the equator to use for comparison

Since:

4.0

Method Detail

equalPredicate

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

Factory to create the predicate.

Type Parameters:

T - the type that the predicate queries

Parameters:

object - the object to compare to

Returns:

the predicate

equalPredicate

public static <T> Predicate<T> equalPredicate(T object,
                                              Equator<T> equator)

Factory to create the identity predicate.

Type Parameters:

T - the type that the predicate queries

Parameters:

object - the object to compare to

equator - the equator to use for comparison

Returns:

the predicate

Since:

4.0

evaluate

public boolean evaluate(T object)

Evaluates the predicate returning true if the input equals the stored value.

Specified by:

evaluate in interface Predicate<T>

Parameters:

object - the input object

Returns:

true if input object equals stored value

getValue

public Object getValue()

Gets the value.

Returns:

the value

Since:

3.1