iaik.ixsil.util

Class CanonicalXMLSerializerImpl.AttributeComparator

java.lang.Object

iaik.ixsil.util.CanonicalXMLSerializerImpl.AttributeComparator

All Implemented Interfaces:

java.util.Comparator

Enclosing class:

CanonicalXMLSerializerImpl

protected class CanonicalXMLSerializerImpl.AttributeComparator
extends java.lang.Object
implements java.util.Comparator

Implements the Comparator interface for DOM attributes.

The namespace of the attribute is used as the primary key. A namespace uri equalling null is lexicographically least. If the primary keys are equal for two attributes, the local name of each attribute is used as the secondary key.

PLEASE NOTE: The ordering imposed by this Comparator implementation is NOT consistent with equals!

See Also:

Comparator

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AttributeComparator()

Method Summary

Modifier and Type	Method and Description
int	compare(java.lang.Object o1, java.lang.Object o2)
protected java.lang.String	getPrimaryKey(org.w3c.dom.Attr attribute) Provides the primary key for the specified attribute.
protected java.lang.String	resolvePrefix(org.w3c.dom.Attr attribute) Provides the namespace URI bound to the specified attribute's namespace prefix.

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

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

AttributeComparator

protected AttributeComparator()

Method Detail

compare

public int compare(java.lang.Object o1,
                   java.lang.Object o2)

Specified by:

compare in interface java.util.Comparator

See Also:

Comparator.compare(T, T)

resolvePrefix

protected java.lang.String resolvePrefix(org.w3c.dom.Attr attribute)

Provides the namespace URI bound to the specified attribute's namespace prefix.

Parameters:

attribute - The attribute, which namespace prefix should be resolved.

Returns:

the namespace URI bound to the attribute's namespace prefix.

getPrimaryKey

protected java.lang.String getPrimaryKey(org.w3c.dom.Attr attribute)

Provides the primary key for the specified attribute.

Parameters:

attribute - The attribute, which primary key should be provided.

Returns:

The namespace URI, or null, if the attribute has no namespace prefix.