Package org.apache.commons.collections4.functors

Class InstanceofPredicate

java.lang.Object

org.apache.commons.collections4.functors.InstanceofPredicate

All Implemented Interfaces:

java.io.Serializable, Predicate<java.lang.Object>

public final class InstanceofPredicate
extends java.lang.Object
implements Predicate<java.lang.Object>, java.io.Serializable

Predicate implementation that returns true if the input is an instanceof the type stored in this predicate.

Since:

3.0

Version:

$Id: InstanceofPredicate.java 1686855 2015-06-22 13:00:27Z tn $

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
InstanceofPredicate(java.lang.Class<?> type)	Constructor that performs no validation.

Method Summary

Modifier and Type	Method	Description
boolean	evaluate(java.lang.Object object)	Evaluates the predicate returning true if the input object is of the correct type.
java.lang.Class<?>	getType()	Gets the type to compare to.
static Predicate<java.lang.Object>	instanceOfPredicate(java.lang.Class<?> type)	Factory to create the identity predicate.

Methods inherited from class java.lang.Object

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

Constructor Detail

InstanceofPredicate

public InstanceofPredicate(java.lang.Class<?> type)

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

Parameters:

type - the type to check for

Method Detail

instanceOfPredicate

public static Predicate<java.lang.Object> instanceOfPredicate(java.lang.Class<?> type)

Factory to create the identity predicate.

Parameters:

type - the type to check for, may not be null

Returns:

the predicate

Throws:

java.lang.NullPointerException - if the class is null

evaluate

public boolean evaluate(java.lang.Object object)

Evaluates the predicate returning true if the input object is of the correct type.

Specified by:

evaluate in interface Predicate<java.lang.Object>

Parameters:

object - the input object

Returns:

true if input is of stored type

getType

public java.lang.Class<?> getType()

Gets the type to compare to.

Returns:

the type

Since:

3.1