Package org.apache.commons.collections4.functors

Class InstanceofPredicate

java.lang.Object

org.apache.commons.collections4.functors.InstanceofPredicate

All Implemented Interfaces:

Serializable, Predicate<Object>, Predicate<Object>

public final class InstanceofPredicate
extends Object
implements Predicate<Object>, 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
boolean	evaluate(Object object)	Evaluates the predicate returning true if the input object is of the correct type.
Class<?>	getType()	Gets the type to compare to.
static Predicate<Object>	instanceOfPredicate(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

Methods inherited from interface java.util.function.Predicate

and, negate, or

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

test

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)

Factory to create the identity predicate.

Parameters:

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

Returns:

the predicate

Throws:

NullPointerException - if the class is null

evaluate

public boolean evaluate(Object object)

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

Specified by:

evaluate in interface Predicate<Object>

Parameters:

object - the input object

Returns:

true if input is of stored type

getType

public Class<?> getType()

Gets the type to compare to.

Returns:

the type

Since:

3.1