Package com.oracle.coherence.common.base

Class HashHelper

java.lang.Object
com.oracle.coherence.common.base.HashHelper
public abstract class HashHelper extends Object
This abstract class contains helper functions for calculating hash code values for any group of java intrinsics.
Version:
1.00, 04/25/00
Author:
pm

  • Constructor Summary

    Constructors
    Constructor
    Description
    HashHelper()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static int
    hash(boolean[] value, int hash)
    Calculate a running hash using the boolean array value.
    static int
    hash(boolean value, int hash)
    Calculate a running hash using the boolean value.
    static int
    hash(byte[] value, int hash)
    Calculate a running hash using the byte array value.
    static int
    hash(byte value, int hash)
    Calculate a running hash using the byte value.
    static int
    hash(char[] value, int hash)
    Calculate a running hash using the char array value.
    static int
    hash(char value, int hash)
    Calculate a running hash using the char value.
    static int
    hash(double[] value, int hash)
    Calculate a running hash using the double array value.
    static int
    hash(double value, int hash)
    Calculate a running hash using the double value.
    static int
    hash(float[] value, int hash)
    Calculate a running hash using the float array value.
    static int
    hash(float value, int hash)
    Calculate a running hash using the float value.
    static int
    hash(int[] value, int hash)
    Calculate a running hash using the int array value.
    static int
    hash(int value, int hash)
    Calculate a running hash using the int value.
    static int
    hash(long[] value, int hash)
    Calculate a running hash using the long array value.
    static int
    hash(long value, int hash)
    Calculate a running hash using the long value.
    static int
    hash(short[] value, int hash)
    Calculate a running hash using the short array value.
    static int
    hash(short value, int hash)
    Calculate a running hash using the short value.
    static int
    hash(Object[] value, int hash)
    Calculate a running hash using the Object array value.
    static int
    hash(Object value, int hash)
    Calculate a running hash using the Object value.
    static String
    hash(String s)
    Shift the value into a different charset order.
    static int
    hash(Collection col, int hash)
    Calculate a running hash using the Collection value.
    static int
    hashCode(Object o)
    Return the hash code for the supplied object or 0 for null.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • HashHelper

      public HashHelper()

  • Method Details

    • hash

      public static int hash(boolean value, int hash)
      Calculate a running hash using the boolean value.
      Parameters:
      value - the boolean value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(byte value, int hash)
      Calculate a running hash using the byte value.
      Parameters:
      value - the byte value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(char value, int hash)
      Calculate a running hash using the char value.
      Parameters:
      value - the char value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(double value, int hash)
      Calculate a running hash using the double value.
      Parameters:
      value - the double value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(float value, int hash)
      Calculate a running hash using the float value.
      Parameters:
      value - the float value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(int value, int hash)
      Calculate a running hash using the int value.
      Parameters:
      value - the int value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(long value, int hash)
      Calculate a running hash using the long value.
      Parameters:
      value - the long value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(short value, int hash)
      Calculate a running hash using the short value.
      Parameters:
      value - the short value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(Object value, int hash)
      Calculate a running hash using the Object value.
      Parameters:
      value - the Object value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(boolean[] value, int hash)
      Calculate a running hash using the boolean array value.
      Parameters:
      value - the boolean array value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(byte[] value, int hash)
      Calculate a running hash using the byte array value.
      Parameters:
      value - the byte array value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(char[] value, int hash)
      Calculate a running hash using the char array value.
      Parameters:
      value - the char array value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(double[] value, int hash)
      Calculate a running hash using the double array value.
      Parameters:
      value - the double array value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(float[] value, int hash)
      Calculate a running hash using the float array value.
      Parameters:
      value - the float array value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(int[] value, int hash)
      Calculate a running hash using the int array value.
      Parameters:
      value - the int array value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(long[] value, int hash)
      Calculate a running hash using the long array value.
      Parameters:
      value - the long array value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(short[] value, int hash)
      Calculate a running hash using the short array value.
      Parameters:
      value - the short array value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(Object[] value, int hash)
      Calculate a running hash using the Object array value.
      Parameters:
      value - the Object array value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static int hash(Collection col, int hash)
      Calculate a running hash using the Collection value. The hash computed over the Collection's entries is order-independent.
      Parameters:
      col - the Collection value for use in the hash
      hash - the running hash value
      Returns:
      the resulting running hash value

    • hash

      public static String hash(String s)
      Shift the value into a different charset order.
      Parameters:
      s - a String
      Returns:
      a String with a different charset ordering

    • hashCode

      public static int hashCode(Object o)
      Return the hash code for the supplied object or 0 for null.
      Parameters:
      o - the object to hash
      Returns:
      the hash code for the supplied object