com.marsching.flexiparse.util
Class AbstractNamespaceContext

java.lang.Object
  com.marsching.flexiparse.util.AbstractNamespaceContext

All Implemented Interfaces:

NamespaceContext

Direct Known Subclasses:

DOMBasedNamespaceContext, MapBasedNamespaceContext

public abstract class AbstractNamespaceContext
extends Object
implements NamespaceContext

Base class providing common code for all implementations of NamespaceContext.

Author:

Sebastian Marsching

Constructor Summary

AbstractNamespaceContext()

Method Summary

String	getNamespaceURI(String prefix) Get Namespace URI bound to a prefix in the current scope.
String	getPrefix(String namespaceURI) Get prefix bound to Namespace URI in the current scope.
Iterator	getPrefixes(String namespaceURI) Get all prefixes bound to a Namespace URI in the current scope.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractNamespaceContext

public AbstractNamespaceContext()

Method Detail

getNamespaceURI

public String getNamespaceURI(String prefix)

Get Namespace URI bound to a prefix in the current scope.

When requesting a Namespace URI by prefix, the following table describes the returned Namespace URI value for all possible prefix values:

getNamespaceURI(prefix) return value for specified prefixes
prefix parameter	Namespace URI return value
DEFAULT_NS_PREFIX ("")	default Namespace URI in the current scope or XMLConstants.NULL_NS_URI("") when there is no default Namespace URI in the current scope
bound prefix	Namespace URI bound to prefix in current scope
unbound prefix	XMLConstants.NULL_NS_URI("")
XMLConstants.XML_NS_PREFIX ("xml")	XMLConstants.XML_NS_URI ("http://www.w3.org/XML/1998/namespace")
XMLConstants.XMLNS_ATTRIBUTE ("xmlns")	XMLConstants.XMLNS_ATTRIBUTE_NS_URI ("http://www.w3.org/2000/xmlns/")
null	IllegalArgumentException is thrown

Specified by:

getNamespaceURI in interface NamespaceContext

Parameters:

prefix - prefix to look up

Returns:

Namespace URI bound to prefix in the current scope

Throws:

IllegalArgumentException - When prefix is null

getPrefix

public String getPrefix(String namespaceURI)

Get prefix bound to Namespace URI in the current scope.

To get all prefixes bound to a Namespace URI in the current scope, use getPrefixes(String namespaceURI).

When requesting a prefix by Namespace URI, the following table describes the returned prefix value for all Namespace URI values:

getPrefix(namespaceURI) return value for specified Namespace URIs
Namespace URI parameter	prefix value returned
<default Namespace URI>	XMLConstants.DEFAULT_NS_PREFIX ("")
bound Namespace URI	prefix bound to Namespace URI in the current scope, if multiple prefixes are bound to the Namespace URI in the current scope, a single arbitrary prefix, whose choice is implementation dependent, is returned
unbound Namespace URI	null
XMLConstants.XML_NS_URI ("http://www.w3.org/XML/1998/namespace")	XMLConstants.XML_NS_PREFIX ("xml")
XMLConstants.XMLNS_ATTRIBUTE_NS_URI ("http://www.w3.org/2000/xmlns/")	XMLConstants.XMLNS_ATTRIBUTE ("xmlns")
null	IllegalArgumentException is thrown

Specified by:

getPrefix in interface NamespaceContext

Parameters:

namespaceURI - URI of Namespace to lookup

Returns:

prefix bound to Namespace URI in current context

Throws:

IllegalArgumentException - When namespaceURI is null

getPrefixes

public Iterator getPrefixes(String namespaceURI)

Get all prefixes bound to a Namespace URI in the current scope.

An Iterator over String elements is returned in an arbitrary, implementation dependent, order.

The Iterator is not modifiable. e.g. the remove() method will throw UnsupportedOperationException.

When requesting prefixes by Namespace URI, the following table describes the returned prefixes value for all Namespace URI values:

getPrefixes(namespaceURI) return value for specified Namespace URIs
Namespace URI parameter	prefixes value returned
bound Namespace URI, including the <default Namespace URI>	Iterator over prefixes bound to Namespace URI in the current scope in an arbitrary, implementation dependent, order
unbound Namespace URI	empty Iterator
XMLConstants.XML_NS_URI ("http://www.w3.org/XML/1998/namespace")	Iterator with one element set to XMLConstants.XML_NS_PREFIX ("xml")
XMLConstants.XMLNS_ATTRIBUTE_NS_URI ("http://www.w3.org/2000/xmlns/")	Iterator with one element set to XMLConstants.XMLNS_ATTRIBUTE ("xmlns")
null	IllegalArgumentException is thrown

Specified by:

getPrefixes in interface NamespaceContext

Parameters:

namespaceURI - URI of Namespace to lookup

Returns:

Iterator for all prefixes bound to the Namespace URI in the current scope

Throws:

IllegalArgumentException - When namespaceURI is null