Package org.apache.commons.collections4.functors

Class InstanceofPredicate

java.lang.Object

org.apache.commons.collections4.functors.AbstractPredicate<Object>

org.apache.commons.collections4.functors.InstanceofPredicate

All Implemented Interfaces:

Serializable, Predicate<Object>, Predicate<Object>

public final class InstanceofPredicate
extends AbstractPredicate<Object>
implements Serializable

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

Since:

3.0

See Also:

• Serialized Form

Constructor Summary

Constructors

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

Method Summary

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

Methods inherited from class org.apache.commons.collections4.functors.AbstractPredicate

evaluate

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

Constructor Details

InstanceofPredicate

public InstanceofPredicate(Class<?> type)

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

Parameters:

type - the type to check for

Method Details

instanceOfPredicate

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

Creates the identity predicate.

Parameters:

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

Returns:

the predicate

Throws:

NullPointerException - if the class is null

getType

public Class<?> getType()

Gets the type to compare to.

Returns:

the type

Since:

3.1

test

public boolean test(Object object)

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

Specified by:

test in interface Predicate<Object>

Specified by:

test in interface Predicate<Object>

Parameters:

object - the input object

Returns:

true if input is of stored type