org.eclipse.persistence.oxm
Class NamespaceResolver

java.lang.Object
  org.eclipse.persistence.oxm.NamespaceResolver

All Implemented Interfaces:

XMLNamespaceResolver

public class NamespaceResolver
extends java.lang.Object
implements XMLNamespaceResolver

It is common for an XML document to include one or more namespaces. TopLink supports this using its NamespaceResolver. The namespace resolver maintains pairs of namespace prefixes and URIs. TopLink uses these prefixes in conjunction with the XPath statements you specify on EIS mappings to XML records and XML mappings.

Although TopLink captures namespace prefixes in the XPath statements for mappings (if applicable), the input document is not required to use the same namespace prefixes. TopLink will use the namespace prefixes specified in the mapping when creating new documents.

Code Sample
NamespaceResolver resolver = new NamespaceResolver();
resolver.put( "ns", "urn:namespace-example");

XMLDescriptor descriptor = new XMLDescriptor();
descriptor.setJavaClass(Customer.class);
descriptor.setDefaultRootElement("ns:customer");
descriptor.setNamespaceResolver(resolver);

XMLDirectMapping mapping = new XMLDirectMapping();
mapping.setAttributeName("id");
mapping.setXPath("ns:id/text()");
descriptor.addMapping(mapping);

See Also:

XMLDescriptor, EISDescriptor

Constructor Summary

NamespaceResolver()
Default constructor, creates a new NamespaceResolver.

Method Summary

java.lang.String	generatePrefix()
java.lang.String	generatePrefix(java.lang.String defaultPrefix)
java.lang.String	getDefaultNamespaceURI()
java.util.Vector	getNamespaces() INTERNAL: Returns a Vector of of Namespace objects in the current Namespace Resolver Used for deployment XML
java.util.Enumeration	getPrefixes() Returns the list of prefixes in the NamespaceResolver
void	put(java.lang.String prefix, java.lang.String namespaceURI) Adds a namespace to the collection of namespaces on the NamespaceResolver
void	removeNamespace(java.lang.String prefix)
java.lang.String	resolveNamespacePrefix(java.lang.String prefix) Returns the namespace URI associated with a specified namespace prefix
java.lang.String	resolveNamespaceURI(java.lang.String uri) Return the namespace prefix associated with a namespace URI.
void	setDefaultNamespaceURI(java.lang.String namespaceUri)
void	setDOM(org.w3c.dom.Node dom)
void	setNamespaces(java.util.Vector names) INTERNAL: Set the namespaces on the namespace resolver based on the specified Vector of Namespace objects Used for deployment XML

Methods inherited from class java.lang.Object

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

Constructor Detail

NamespaceResolver

public NamespaceResolver()

Default constructor, creates a new NamespaceResolver.

Method Detail

setDOM

public void setDOM(org.w3c.dom.Node dom)

resolveNamespacePrefix

public java.lang.String resolveNamespacePrefix(java.lang.String prefix)

Returns the namespace URI associated with a specified namespace prefix

Specified by:

resolveNamespacePrefix in interface XMLNamespaceResolver

Parameters:

prefix - The prefix to lookup a namespace URI for

Returns:

The namespace URI associated with the specified prefix

resolveNamespaceURI

public java.lang.String resolveNamespaceURI(java.lang.String uri)

Return the namespace prefix associated with a namespace URI.

Parameters:

uri - A namespace URI.

Returns:

The prefix associated with the namespace URI.

put

public void put(java.lang.String prefix,
                java.lang.String namespaceURI)

Adds a namespace to the collection of namespaces on the NamespaceResolver

Parameters:

prefix - The prefix for a namespace

namespaceURI - The namespace URI associated with the specified prefix

getPrefixes

public java.util.Enumeration getPrefixes()

Returns the list of prefixes in the NamespaceResolver

Returns:

An Enumeration containing the prefixes in the NamespaceResolver

getNamespaces

public java.util.Vector getNamespaces()

INTERNAL: Returns a Vector of of Namespace objects in the current Namespace Resolver Used for deployment XML

Returns:

A Vector containing the namespace URIs in the namespace resolver

setNamespaces

public void setNamespaces(java.util.Vector names)

INTERNAL: Set the namespaces on the namespace resolver based on the specified Vector of Namespace objects Used for deployment XML

Parameters:

names - A Vector of namespace URIs

generatePrefix

public java.lang.String generatePrefix()

generatePrefix

public java.lang.String generatePrefix(java.lang.String defaultPrefix)

removeNamespace

public void removeNamespace(java.lang.String prefix)

setDefaultNamespaceURI

public void setDefaultNamespaceURI(java.lang.String namespaceUri)

getDefaultNamespaceURI

public java.lang.String getDefaultNamespaceURI()