Package org.apache.commons.collections4.functors

Class InstanceofPredicate

  • All Implemented Interfaces:
    java.io.Serializable, Predicate<java.lang.Object>
    public final class InstanceofPredicate
extends java.lang.Object
implements Predicate<java.lang.Object>, java.io.Serializable
    Predicate implementation that returns true if the input is an instanceof the type stored in this predicate.
    Since:
    3.0
    See Also:
    Serialized Form

    • Constructor Summary

      Constructors 
      Constructor Description
      InstanceofPredicate​(java.lang.Class<?> type)
      Constructor that performs no validation.

    • 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 input object is of the correct type.
      java.lang.Class<?> getType()
      Gets the type to compare to.
      static Predicate<java.lang.Object> instanceOfPredicate​(java.lang.Class<?> type)
      Factory to create the identity predicate.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • InstanceofPredicate

        public InstanceofPredicate​(java.lang.Class<?> type)
        Constructor that performs no validation. Use instanceOfPredicate if you want that.
        Parameters:
        type - the type to check for

    • Method Detail

      • instanceOfPredicate

        public static Predicate<java.lang.Object> instanceOfPredicate​(java.lang.Class<?> type)
        Factory to create the identity predicate.
        Parameters:
        type - the type to check for, may not be null
        Returns:
        the predicate
        Throws:
        java.lang.NullPointerException - if the class is null

      • evaluate

        public boolean evaluate​(java.lang.Object object)
        Evaluates the predicate returning true if the input object is of the correct type.
        Specified by:
        evaluate in interface Predicate<java.lang.Object>
        Parameters:
        object - the input object
        Returns:
        true if input is of stored type

      • getType

        public java.lang.Class<?> getType()
        Gets the type to compare to.
        Returns:
        the type
        Since:
        3.1