Package org.apache.commons.collections.functors

Class NullPredicate

java.lang.Object
org.apache.commons.collections.functors.NullPredicate
All Implemented Interfaces:
Serializable, Predicate
@Deprecated(since="2021-04-30") public final class NullPredicate extends Object implements Predicate, Serializable
Deprecated.
Apache Commons Collections version 3.x is being deprecated from AEMaaCS. The upgraded version 4.4 of Commons Collections is already included as replacement. Customers are advised to upgrade to this version of the library. Please note: the package name was changed to org.apache.commons.collections4. Further note that there are AEM APIs currently exposing the old collections classes; these will be updated in upcoming releases.
Predicate implementation that returns true if the input is null.
Since:
Commons Collections 3.0
See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final Predicate
    INSTANCE
    Deprecated.
    Singleton predicate instance

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    evaluate(Object object)
    Deprecated.
    Evaluates the predicate returning true if the input is null.
    static Predicate
    getInstance()
    Deprecated.
    Factory returning the singleton instance.

    Methods inherited from class java.lang.Object

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

  • Field Details

    • INSTANCE

      public static final Predicate INSTANCE
      Deprecated.
      Singleton predicate instance

  • Method Details

    • getInstance

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

    • evaluate

      public boolean evaluate(Object object)
      Deprecated.
      Evaluates the predicate returning true if the input is null.
      Specified by:
      evaluate in interface Predicate
      Parameters:
      object - the input object
      Returns:
      true if input is null