Class NotNullPredicate
- java.lang.Object
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- org.apache.commons.collections.functors.NotNullPredicate
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- 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
- Version:
- $Revision: 646777 $ $Date: 2008-04-10 14:33:15 +0200 (Thu, 10 Apr 2008) $
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static Predicate
INSTANCE
Singleton predicate instanceprivate static long
serialVersionUID
Serial version UID
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Constructor Summary
Constructors Modifier Constructor Description private
NotNullPredicate()
Restricted constructor.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method 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.
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Field Detail
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serialVersionUID
private static final long serialVersionUID
Serial version UID- See Also:
- Constant Field Values
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INSTANCE
public static final Predicate INSTANCE
Singleton predicate instance
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Method Detail
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getInstance
public static Predicate getInstance()
Factory returning the singleton instance.- Returns:
- the singleton instance
- Since:
- Commons Collections 3.1
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