org.apache.xml.security.c14n.helper
Class AttrCompare

java.lang.Object
  org.apache.xml.security.c14n.helper.AttrCompare

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator

public class AttrCompare
extends java.lang.Object
implements java.util.Comparator, java.io.Serializable

Compares two attributes based on the C14n specification.

• Namespace nodes have a lesser document order position than attribute nodes.
• An element's namespace nodes are sorted lexicographically by local name (the default namespace node, if one exists, has no local name and is therefore lexicographically least).
• An element's attribute nodes are sorted lexicographically with namespace URI as the primary key and local name as the secondary key (an empty namespace URI is lexicographically least).

Author:

Christian Geuer-Pollmann

See Also:

Serialized Form

Constructor Summary

AttrCompare()

Method Summary

int	compare(java.lang.Object obj0, java.lang.Object obj1) Compares two attributes based on the C14n specification.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Constructor Detail

AttrCompare

public AttrCompare()

Method Detail

compare

public int compare(java.lang.Object obj0,
                   java.lang.Object obj1)

Compares two attributes based on the C14n specification.

• Namespace nodes have a lesser document order position than attribute nodes.
• An element's namespace nodes are sorted lexicographically by local name (the default namespace node, if one exists, has no local name and is therefore lexicographically least).
• An element's attribute nodes are sorted lexicographically with namespace URI as the primary key and local name as the secondary key (an empty namespace URI is lexicographically least).

Specified by:

compare in interface java.util.Comparator

Parameters:

obj0 - casted Attr

obj1 - casted Attr

Returns:

returns a negative integer, zero, or a positive integer as obj0 is less than, equal to, or greater than obj1