fop 1.1

org.apache.fop.util
Class CompareUtil

java.lang.Object
  extended by org.apache.fop.util.CompareUtil

public final class CompareUtil
extends java.lang.Object

A utility class that provides helper methods for implementing equals and hashCode.


Method Summary
static boolean equal(double n1, double n2)
          Compares two numbers for equality.
static boolean equal(java.lang.Object o1, java.lang.Object o2)
          Compares two objects for equality.
static int getHashCode(double number)
          Returns a hash code for the given number.
static int getHashCode(java.lang.Object object)
          Returns the hash code of the given object.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Method Detail

equal

public static boolean equal(java.lang.Object o1,
                            java.lang.Object o2)
Compares two objects for equality.

Parameters:
o1 - an object
o2 - another object
Returns:
true if either o1 and o2 are null or if o1.equals(o2)

getHashCode

public static int getHashCode(java.lang.Object object)
Returns the hash code of the given object.

Parameters:
object - an object
Returns:
object.hashCode(), or 0 if object is null

equal

public static boolean equal(double n1,
                            double n2)
Compares two numbers for equality. Uses the same comparison algorithm as the Double.equals(Object) method.

Parameters:
n1 - a number
n2 - another number
Returns:
true if the two numbers are equal, false otherwise

getHashCode

public static int getHashCode(double number)
Returns a hash code for the given number. Applies the same algorithm as the Double.hashCode() method.

Parameters:
number - a number
Returns:
a hash code for that number

fop 1.1

Copyright 1999-2012 The Apache Software Foundation. All Rights Reserved.