org.apache.commons.collections.functors

## Class NotNullPredicate

- java.lang.Object
- - org.apache.commons.collections.functors.NotNullPredicate

- All Implemented Interfaces:
    Serializable, Predicate

      public final class NotNullPredicate
      extends Object
      implements Predicate, 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) $
  Author:
    Stephen Colebourne
  See Also:
    Serialized Form

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static Predicate` | `INSTANCE` Singleton predicate instance

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `evaluate(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

      `clone, equals, finalize, 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(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

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