net.sf.saxon.instruct
Class SavedNamespaceContext

java.lang.Object
  net.sf.saxon.instruct.SavedNamespaceContext

All Implemented Interfaces:

Serializable, NamespaceResolver

public final class SavedNamespaceContext
extends Object
implements Serializable, NamespaceResolver

An object representing a list of Namespaces. Used when the namespace controller in the stylesheet needs to be kept for use at run-time. The list of namespaces is maintained in the form of numeric prefix/uri codes, which are only meaningful in the context of a name pool

See Also:

Serialized Form

Constructor Summary

SavedNamespaceContext(int[] nscodes, NamePool pool)
Create a NamespaceContext object

SavedNamespaceContext(NamespaceResolver resolver, NamePool pool)
Create a SavedNamespaceContext that captures all the information in a given NamespaceResolver

Method Summary

int[]	getNamespaceCodes() Get the list of in-scope namespaces held in this NamespaceContext
String	getURIForPrefix(String prefix, boolean useDefault) Get the namespace URI corresponding to a given prefix.
Iterator	iteratePrefixes() Get an iterator over all the prefixes declared in this namespace context.

Methods inherited from class java.lang.Object

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

Constructor Detail

SavedNamespaceContext

public SavedNamespaceContext(int[] nscodes,
                             NamePool pool)

Create a NamespaceContext object

Parameters:

nscodes - an array of namespace codes. Each namespace code is an integer in which the first 16 bits represent the prefix (zero if it's the default namespace) and the next 16 bits represent the uri. These are codes held in the NamePool. The list will be searched from the "high" end.

pool - the namepool

SavedNamespaceContext

public SavedNamespaceContext(NamespaceResolver resolver,
                             NamePool pool)

Create a SavedNamespaceContext that captures all the information in a given NamespaceResolver

Parameters:

resolver - the NamespaceResolver

pool - the NamePool

Method Detail

getNamespaceCodes

public int[] getNamespaceCodes()

Get the list of in-scope namespaces held in this NamespaceContext

Returns:

the list of namespaces

getURIForPrefix

public String getURIForPrefix(String prefix,
                              boolean useDefault)

Get the namespace URI corresponding to a given prefix. Return null if the prefix is not in scope.

Specified by:

getURIForPrefix in interface NamespaceResolver

Parameters:

prefix - the namespace prefix

useDefault - true if the default namespace is to be used when the prefix is ""

Returns:

the uri for the namespace, or null if the prefix is not in scope

iteratePrefixes

public Iterator iteratePrefixes()

Get an iterator over all the prefixes declared in this namespace context. This will include the default namespace (prefix="") and the XML namespace where appropriate

Specified by:

iteratePrefixes in interface NamespaceResolver