Package com.oracle.coherence.common.base

Interface Hasher<V>

  • All Known Implementing Classes:
    IdentityHasher, NaturalHasher
    public interface Hasher<V>
    A Hasher provides an external means for producing hash codes and comparing objects for equality.
    Author:
    mf 2011.01.07

    • Method Summary

      All Methods Static Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      boolean equals​(V va, V vb)
      Compare two objects for equality.
      int hashCode​(V v)
      Return a hash for the specified object.
      static int mod​(int n, int m)
      Calculate a modulo of two integer numbers.
      static long mod​(long n, long m)
      Calculate a modulo of two long numbers.

    • Method Detail

      • hashCode

        int hashCode​(V v)
        Return a hash for the specified object.
        Parameters:
        v - the object to hash
        Returns:
        the hash

      • equals

        boolean equals​(V va,
               V vb)
        Compare two objects for equality.
        Parameters:
        va - the first object to compare
        vb - the second object to compare
        Returns:
        true iff the object are equal

      • mod

        static int mod​(int n,
               int m)
        Calculate a modulo of two integer numbers. For a positive dividend the result is the same as the Java remainder operation (n % m). For a negative dividend the result is still positive and equals to (n % m + m).
        Parameters:
        n - the dividend
        m - the divisor (must be positive)
        Returns:
        the modulo

      • mod

        static long mod​(long n,
                long m)
        Calculate a modulo of two long numbers. For a positive dividend the result is the same as the Java remainder operation (n % m). For a negative dividend the result is still positive and equals to (n % m + m).
        Parameters:
        n - the dividend
        m - the divisor (must be positive)
        Returns:
        the modulo