Package gnu.trove.strategy

Class IdentityHashingStrategy<K>

  • All Implemented Interfaces:
    HashingStrategy<K>, java.io.Serializable
    public class IdentityHashingStrategy<K>
extends java.lang.Object
implements HashingStrategy<K>
    A HashingStrategy that does identity comparisons (==) and uses System.identityHashCode(Object) for hashCode generation.
    See Also:
    Serialized Form

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static IdentityHashingStrategy<java.lang.Object> INSTANCE
      A single instance that can be shared with multiple collections.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int computeHashCode​(K object)
      Computes a hash code for the specified object.
      boolean equals​(K o1, K o2)
      Compares o1 and o2 for equality.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • INSTANCE

        public static final IdentityHashingStrategy<java.lang.Object> INSTANCE
        A single instance that can be shared with multiple collections. This instance is thread safe.

    • Constructor Detail

      • IdentityHashingStrategy

        public IdentityHashingStrategy()

    • Method Detail

      • computeHashCode

        public int computeHashCode​(K object)
        Description copied from interface: HashingStrategy
        Computes a hash code for the specified object. Implementers can use the object's own hashCode method, the Java runtime's identityHashCode, or a custom scheme.
        Specified by:
        computeHashCode in interface HashingStrategy<K>
        Parameters:
        object - for which the hashcode is to be computed
        Returns:
        the hashCode

      • equals

        public boolean equals​(K o1,
                      K o2)
        Description copied from interface: HashingStrategy
        Compares o1 and o2 for equality. Strategy implementers may use the objects' own equals() methods, compare object references, or implement some custom scheme.
        Specified by:
        equals in interface HashingStrategy<K>
        Parameters:
        o1 - an Object value
        o2 - an Object value
        Returns:
        true if the objects are equal according to this strategy.