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org.apache.commons.collections.functors

Class NotNullPredicate

Implemented Interfaces:
Predicate, Serializable
public final class NotNullPredicate
extends java.lang.Object
implements Predicate, Serializable
Predicate implementation that returns true if the input is not null.
Version:
$Revision: 646777 $ $Date: 2008-04-10 13:33:15 +0100 (Thu, 10 Apr 2008) $
Author:
Stephen Colebourne
Since:
Commons Collections 3.0

Field Summary

static Predicate
INSTANCE
Singleton predicate instance

Method Summary

boolean
evaluate(Object object)
Evaluates the predicate returning true if the object does not equal null.
static Predicate
getInstance()
Factory returning the singleton instance.

Field Details

INSTANCE

public static final Predicate INSTANCE
Singleton predicate instance

Method Details

evaluate

public boolean evaluate(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

getInstance

public static Predicate getInstance()
Factory returning the singleton instance.
Returns:
the singleton instance
Since:
Commons Collections 3.1

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