org.apache.commons.collections.functors

Class NotNullPredicate

java.lang.Object

org.apache.commons.collections.functors.NotNullPredicate

All Implemented Interfaces:

java.io.Serializable, Predicate

public final class NotNullPredicate
extends java.lang.Object
implements Predicate, java.io.Serializable

Predicate implementation that returns true if the input is not null.

Since:

Commons Collections 3.0

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static Predicate	INSTANCE Singleton predicate instance

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(java.lang.Object object) Evaluates the predicate returning true if the object does not equal null.
static Predicate	getInstance() Factory returning the singleton instance.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final Predicate INSTANCE

Singleton predicate instance

Method Detail

getInstance

public static Predicate getInstance()

Factory returning the singleton instance.

Returns:

the singleton instance

Since:

Commons Collections 3.1

evaluate

public boolean evaluate(java.lang.Object object)

Evaluates the predicate returning true if the object does not equal null.

Specified by:

evaluate in interface Predicate

Parameters:

object - the object to evaluate

Returns:

true if not null