Package org.apache.commons.collections4.functors

Class InstanceofPredicate

java.lang.Object

org.apache.commons.collections4.functors.InstanceofPredicate

All Implemented Interfaces:

Serializable, 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

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