## net.sf.saxon.event
Class NamePoolConverter

    java.lang.Object
      net.sf.saxon.event.SequenceReceiver
          net.sf.saxon.event.ProxyReceiver
              net.sf.saxon.event.NamePoolConverter

All Implemented Interfaces:
  Result, Receiver

    public class NamePoolConverter

extends ProxyReceiver

This class is a filter that passes all Receiver events through unchanged, except that it changes namecodes to allow for the source and the destination using different NamePools. This is necessary when a stylesheet has been constructed as a general document (e.g. as the result of a transformation) and is passed to newTemplates() to be compiled as a stylesheet.

Author:
  Michael Kay

Field Summary

Fields inherited from interface javax.xml.transform.Result
`PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING`

Constructor Summary
`NamePoolConverter(NamePool oldPool, NamePool newPool)` Constructor

Method Summary
`void` `attribute(int nameCode, int typeCode, CharSequence value, int locationId, int properties)` Handle an attribute
`void` `namespace(int namespaceCode, int properties)` Handle a namespace
`void` `setUnderlyingReceiver(Receiver receiver)` Set the underlying emitter.
`void` `startElement(int nameCode, int typeCode, int locationId, int properties)` Output element start tag

Methods inherited from class net.sf.saxon.event.ProxyReceiver
`append, characters, close, comment, endDocument, endElement, getConfiguration, getDocumentLocator, getNamePool, getUnderlyingReceiver, open, processingInstruction, setPipelineConfiguration, setSystemId, setUnparsedEntity, startContent, startDocument`

Methods inherited from class net.sf.saxon.event.SequenceReceiver
`getPipelineConfiguration, getSystemId`

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### NamePoolConverter

    public NamePoolConverter(NamePool oldPool,
                             NamePool newPool)

  Constructor

Method Detail

### setUnderlyingReceiver

    public void setUnderlyingReceiver(Receiver receiver)

  Set the underlying emitter. This call is mandatory before using the Emitter. This version is modified from that of the parent class to avoid setting the namePool of the destination Receiver.

  Overrides:
    `setUnderlyingReceiver` in class `ProxyReceiver`

### startElement

    public void startElement(int nameCode,
                             int typeCode,
                             int locationId,
                             int properties)
                      throws XPathException

  Output element start tag

  Specified by:
    `startElement` in interface `Receiver`
  Overrides:
    `startElement` in class `ProxyReceiver`
  Parameters:
    `nameCode` - integer code identifying the name of the element within the name pool.
    `typeCode` - integer code identifying the element's type within the name pool.
    `locationId` - an integer which can be interpreted using a `LocationProvider` to return information such as line number and system ID. If no location information is available, the value zero is supplied.
    `properties` - properties of the element node
  Throws:
    `XPathException`

### namespace

    public void namespace(int namespaceCode,
                          int properties)
                   throws XPathException

  Handle a namespace

  Specified by:
    `namespace` in interface `Receiver`
  Overrides:
    `namespace` in class `ProxyReceiver`
  Parameters:
    `namespaceCode` - an integer: the top half is a prefix code, the bottom half a URI code. These may be translated into an actual prefix and URI using the name pool. A prefix code of zero represents the empty prefix (that is, the default namespace). A URI code of zero represents a URI of "", that is, a namespace undeclaration.
    `properties` - The most important property is REJECT_DUPLICATES. If this property is set, the namespace declaration will be rejected if it conflicts with a previous declaration of the same prefix. If the property is not set, the namespace declaration will be ignored if it conflicts with a previous declaration. This reflects the fact that when copying a tree, namespaces for child elements are emitted before the namespaces of their parent element. Unfortunately this conflicts with the XSLT rule for complex content construction, where the recovery action in the event of conflicts is to take the namespace that comes last. XSLT therefore doesn't recover from this error: it sets the REJECT_DUPLICATES flag, and this is treated as a hard error.
  Throws:
    `XPathException`

### attribute

    public void attribute(int nameCode,
                          int typeCode,
                          CharSequence value,
                          int locationId,
                          int properties)
                   throws XPathException

  Handle an attribute

  Specified by:
    `attribute` in interface `Receiver`
  Overrides:
    `attribute` in class `ProxyReceiver`
  Parameters:
    `nameCode` - The name of the attribute, as held in the name pool
    `typeCode` - The type of the attribute, as held in the name pool
    `locationId` - an integer which can be interpreted using a `LocationProvider` to return information such as line number and system ID. If no location information is available, the value zero is supplied.
    `properties` - Bit significant value. The following bits are defined:
    DISABLE_ESCAPING
  Disable escaping for this attribute
    NO_SPECIAL_CHARACTERS
  Attribute value contains no special characters
  Throws:
    `XPathException`

Copyright (C) Michael H. Kay. All rights reserved.