Class MultipleScopeNamespaceSupport

java.lang.Object
org.apache.xerces.util.NamespaceSupport
org.apache.xerces.xinclude.MultipleScopeNamespaceSupport
All Implemented Interfaces:
org.apache.xerces.xni.NamespaceContext
Direct Known Subclasses:
XIncludeNamespaceSupport

public class MultipleScopeNamespaceSupport extends NamespaceSupport
This implementation of NamespaceContext has the ability to maintain multiple scopes of namespace/prefix bindings. This is useful in situations when it is not always appropriate for elements to inherit the namespace bindings of their ancestors (such as included elements in XInclude). When searching for a URI to match a prefix, or a prefix to match a URI, it is searched for in the current context, then the ancestors of the current context, up to the beginning of the current scope. Other scopes are not searched.
Version:
$Id: MultipleScopeNamespaceSupport.java 447243 2006-09-18 05:15:27Z mrglavas $
Author:
Peter McCracken, IBM
  • Field Details

    • fScope

      protected int[] fScope
    • fCurrentScope

      protected int fCurrentScope
  • Constructor Details

    • MultipleScopeNamespaceSupport

      public MultipleScopeNamespaceSupport()
    • MultipleScopeNamespaceSupport

      public MultipleScopeNamespaceSupport(org.apache.xerces.xni.NamespaceContext context)
      Parameters:
      context -
  • Method Details

    • getAllPrefixes

      public Enumeration getAllPrefixes()
      Description copied from interface: org.apache.xerces.xni.NamespaceContext
      Return an enumeration of all prefixes whose declarations are active in the current context. This includes declarations from parent contexts that have not been overridden.
      Specified by:
      getAllPrefixes in interface org.apache.xerces.xni.NamespaceContext
      Overrides:
      getAllPrefixes in class NamespaceSupport
      Returns:
      Enumeration
      See Also:
      • NamespaceContext.getAllPrefixes()
    • getScopeForContext

      public int getScopeForContext(int context)
    • getPrefix

      public String getPrefix(String uri)
      Description copied from interface: org.apache.xerces.xni.NamespaceContext
      Look up a namespace URI and get one of the mapped prefix.

      This method looks up the namespace URI in the current context. If more than one prefix is currently mapped to the same URI, this method will make an arbitrary selection If no mapping is found, this methods will continue lookup in the parent context(s).

      Specified by:
      getPrefix in interface org.apache.xerces.xni.NamespaceContext
      Overrides:
      getPrefix in class NamespaceSupport
      Parameters:
      uri - The namespace URI to look up.
      Returns:
      One of the associated prefixes, or null if the uri does not map to any prefix.
      See Also:
      • NamespaceContext.getPrefix(String)
    • getURI

      public String getURI(String prefix)
      Description copied from interface: org.apache.xerces.xni.NamespaceContext
      Look up a prefix and get the currently-mapped Namespace URI.

      This method looks up the prefix in the current context. If no mapping is found, this methods will continue lookup in the parent context(s). Use the empty string ("") for the default Namespace.

      Specified by:
      getURI in interface org.apache.xerces.xni.NamespaceContext
      Overrides:
      getURI in class NamespaceSupport
      Parameters:
      prefix - The prefix to look up.
      Returns:
      The associated Namespace URI, or null if the prefix is undeclared in this context.
      See Also:
      • NamespaceContext.getURI(String)
    • getPrefix

      public String getPrefix(String uri, int context)
    • getURI

      public String getURI(String prefix, int context)
    • getPrefix

      public String getPrefix(String uri, int start, int end)
    • getURI

      public String getURI(String prefix, int start, int end)
    • reset

      public void reset()
      Only resets the current scope -- all namespaces defined in lower scopes remain valid after a call to reset.
      Specified by:
      reset in interface org.apache.xerces.xni.NamespaceContext
      Overrides:
      reset in class NamespaceSupport
      See Also:
      • NamespaceContext.reset()
    • pushScope

      public void pushScope()
      Begins a new scope. None of the previous namespace bindings will be used, until the new scope is popped with popScope()
    • popScope

      public void popScope()
      Pops the current scope. The namespace bindings from the new current scope are then used for searching for namespaces and prefixes.