Class NamespaceSupport

java.lang.Object
org.htmlunit.cyberneko.xerces.util.NamespaceSupport
All Implemented Interfaces:
NamespaceContext
public class NamespaceSupport extends Object implements NamespaceContext
Namespace support for XML document handlers. This class doesn't perform any error checking and assumes that all strings passed as arguments to methods are unique symbols. The SymbolTable class can be used for this purpose.

  • Field Details

    • fNamespace_

      private String[] fNamespace_
      Namespace binding information. This array is composed of a series of tuples containing the namespace binding information: <prefix, uri>. The default size can be set to anything as long as it is a power of 2 greater than 1.
      See Also:

    • fNamespaceSize_

      private int fNamespaceSize_
      The top of the namespace information array.

    • fContext_

      private int[] fContext_
      Context indexes. This array contains indexes into the namespace information array. The index at the current context is the start index of declared namespace bindings and runs to the size of the namespace information array.
      See Also:

    • fCurrentContext_

      private int fCurrentContext_
      The current context.

  • Constructor Details

    • NamespaceSupport

      public NamespaceSupport()
      Default constructor.

  • Method Details

    • reset

      public void reset()
      Description copied from interface: NamespaceContext
      Reset this Namespace support object for reuse.

      It is necessary to invoke this method before reusing the Namespace support object for a new session.

      Note that implementations of this method need to ensure that the declaration of the prefixes "xmlns" and "xml" are available.

      Specified by:
      reset in interface NamespaceContext
      See Also:

    • pushContext

      public void pushContext()
      Description copied from interface: NamespaceContext
      Start a new Namespace context.

      A new context should be pushed at the beginning of each XML element: the new context will automatically inherit the declarations of its parent context, but it will also keep track of which declarations were made within this context.

      Specified by:
      pushContext in interface NamespaceContext
      See Also:

    • popContext

      public void popContext()
      Description copied from interface: NamespaceContext
      Revert to the previous Namespace context.

      The context should be popped at the end of each XML element. After popping the context, all Namespace prefix mappings that were previously in force are restored.

      Users must not attempt to declare additional Namespace prefixes after popping a context, unless you push another context first.

      Specified by:
      popContext in interface NamespaceContext
      See Also:

    • declarePrefix

      public boolean declarePrefix(String prefix, String uri)
      Description copied from interface: NamespaceContext
      Declare a Namespace prefix.

      This method declares a prefix in the current Namespace context; the prefix will remain in force until this context is popped, unless it is shadowed in a descendant context.

      Note that to declare a default Namespace, use the empty string. The prefixes "xml" and "xmlns" can't be rebound.

      Note that you must not declare a prefix after you've pushed and popped another Namespace.

      Specified by:
      declarePrefix in interface NamespaceContext
      Parameters:
      prefix - The prefix to declare, or null for the empty string.
      uri - The Namespace URI to associate with the prefix.
      Returns:
      true if the prefix was legal, false otherwise
      See Also:

    • getURI

      public String getURI(String prefix)
      Description copied from interface: 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 NamespaceContext
      Parameters:
      prefix - The prefix to look up.
      Returns:
      The associated Namespace URI, or null if the prefix is undeclared in this context.
      See Also:

    • getDeclaredPrefixCount

      public int getDeclaredPrefixCount()
      Specified by:
      getDeclaredPrefixCount in interface NamespaceContext
      Returns:
      a count of locally declared prefixes, including the default prefix if bound.
      See Also:

    • getDeclaredPrefixAt

      public String getDeclaredPrefixAt(int index)
      Specified by:
      getDeclaredPrefixAt in interface NamespaceContext
      Parameters:
      index - the index pos
      Returns:
      the prefix at the specified index in the current context.
      See Also: