Class RightBoundPredicate<A>

java.lang.Object
org.apache.commons.functor.adapter.RightBoundPredicate<A>
Type Parameters:
A - the argument type.
All Implemented Interfaces:
Serializable, Functor, UnaryFunctor<A>, UnaryPredicate<A>
public final class RightBoundPredicate<A> extends Object implements UnaryPredicate<A>, Serializable
Adapts a BinaryPredicate to the UnaryPredicate interface using a constant left-side argument.

Note that although this class implements Serializable, a given instance will only be truly Serializable if the underlying objects are. Attempts to serialize an instance whose delegates are not Serializable will result in an exception.

Version:
$Revision$ $Date$
See Also:

  • Field Details

  • Constructor Details

    • RightBoundPredicate

      public <R> RightBoundPredicate(BinaryPredicate<? super A, ? super R> predicate, R arg)
      Create a new RightBoundPredicate.
      Type Parameters:
      R - bound arg type
      Parameters:
      predicate - the predicate to adapt
      arg - the constant argument to use

  • Method Details

    • test

      public boolean test(A obj)
      Evaluate this predicate.
      Specified by:
      test in interface UnaryPredicate<A>
      Parameters:
      obj - the A object to test
      Returns:
      the result of this test

    • equals

      public boolean equals(Object that)
      Indicates whether some other object is "equal to" this functor. This method must adhere to general Object.equals contract. Additionally, this method can return true only if the specified Object implements the same functor interface and is known to produce the same results and/or side-effects for the same arguments (if any).

      While implementators are strongly encouraged to override the default Object implementation of this method, note that the default Object implementation does in fact adhere to the functor equals contract.

      Specified by:
      equals in interface Functor
      Overrides:
      equals in class Object
      Parameters:
      that - the object to compare this functor to
      Returns:
      true iff the given object implements this functor interface, and is known to produce the same results and/or side-effects for the same arguments (if any).
      See Also:

    • equals

      public boolean equals(RightBoundPredicate<?> that)
      Learn whether another RightBoundPredicate is equal to this.
      Parameters:
      that - RightBoundPredicate to test
      Returns:
      boolean

    • hashCode

      public int hashCode()
      Returns a hash code for this functor adhering to the general Object.hashCode contract. Implementators are strongly encouraged but not strictly required to override the default Object implementation of this method.
      Specified by:
      hashCode in interface Functor
      Overrides:
      hashCode in class Object
      Returns:
      a hash code for this functor
      See Also:

    • toString

      public String toString()
      Returns a human readable description of this functor. Implementators are strongly encouraged but not strictly required to override the default Object implementation of this method.
      Specified by:
      toString in interface Functor
      Overrides:
      toString in class Object
      Returns:
      a human readable description of this functor

    • bind

      public static <L,R> RightBoundPredicate<L> bind(BinaryPredicate<? super L, ? super R> predicate, R arg)
      Adapt a BinaryPredicate as a UnaryPredicate.
      Type Parameters:
      L - the left argument type.
      R - the right argument type.
      Parameters:
      predicate - to adapt
      arg - right side
      Returns:
      RightBoundPredicate