cvs commit: xml-xalan/java/src/org/apache/xml/utils CharKey.java

[sb...@apache.org]

sboag       01/01/06 19:37:13

  Added:       java/src/org/apache/xml/utils CharKey.java
  Log:
  CharKey class to be used as a key for char hashtable lookups.
  
  This class is used in the serialization stuff to look up chars without
  creating a Character object for each lookup.
  
  Revision  Changes    Path
  1.1                  xml-xalan/java/src/org/apache/xml/utils/CharKey.java
  
  Index: CharKey.java
  ===================================================================
  package org.apache.xml.utils;
  
  /**
   * <meta name="usage" content="internal"/>
   * Simple class for fast lookup of char values, when used with
   * hashtables.  You can set the char, then use it as a key.
   */
  public class CharKey extends Object
  {
  
    /** String value          */
    private char m_char;
  
    /**
     * Constructor CharKey
     *
     * @param key char value of this object.
     */
    public CharKey(char key)
    {
      m_char = key;
    }
    
    /**
     * Default constructor for a CharKey.
     *
     * @param key char value of this object.
     */
    public CharKey()
    {
    }
    
    /**
     * Get the hash value of the character.  
     *
     * @return hash value of the character.
     */
    public final void setChar(char c)
    {
      m_char = c;
    }
  
  
  
    /**
     * Get the hash value of the character.  
     *
     * @return hash value of the character.
     */
    public final int hashCode()
    {
      return (int)m_char;
    }
  
    /**
     * Override of equals() for this object 
     *
     * @param obj to compare to
     *
     * @return True if this object equals this string value 
     */
    public final boolean equals(Object obj)
    {
      return ((CharKey)obj).m_char == m_char;
    }
  }