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## net.sf.saxon.pull
Class ElementNameTracker

    java.lang.Object
      net.sf.saxon.pull.PullFilter
          net.sf.saxon.pull.ElementNameTracker

All Implemented Interfaces:
  PullProvider

public class ElementNameTracker
extends PullFilter

This is a filter that can be added to a pull pipeline to remember element names so that they are available immediately after the END_ELEMENT event is notified

Field Summary

Fields inherited from class net.sf.saxon.pull.PullFilter
`currentEvent`

Fields inherited from interface net.sf.saxon.pull.PullProvider
`ATOMIC_VALUE, ATTRIBUTE, COMMENT, END_DOCUMENT, END_ELEMENT, END_OF_INPUT, NAMESPACE, PROCESSING_INSTRUCTION, START_DOCUMENT, START_ELEMENT, START_OF_INPUT, TEXT`

Constructor Summary
`ElementNameTracker(PullProvider base)`

Method Summary
`int` | `getNameCode()` Get the nameCode identifying the name of the current node.
`int` | `next()` Get the next event.

Methods inherited from class net.sf.saxon.pull.PullFilter
`close, current, getAtomicValue, getAttributes, getFingerprint, getNamePool, getNamespaceDeclarations, getPipelineConfiguration, getSourceLocator, getStringValue, getTypeAnnotation, getUnderlyingProvider, setPipelineConfiguration, skipToMatchingEnd`

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

Constructor Detail

### ElementNameTracker

    public ElementNameTracker(PullProvider base)

Method Detail

### next

    public int next()
             throws XPathException

  Get the next event.

  Note that a subclass that overrides this method is responsible for ensuring that current() works properly. This can be achieved by setting the field currentEvent to the event returned by any call on next().

  Specified by:
    `next` in interface `PullProvider`
  Overrides:
    `next` in class `PullFilter`
  Returns:
    an integer code indicating the type of event. The code `PullProvider.END_OF_INPUT` is returned at the end of the sequence.
  Throws:
    `XPathException`

### getNameCode

    public int getNameCode()

  Get the nameCode identifying the name of the current node. This method can be used after the `PullProvider.START_ELEMENT`, `PullProvider.PROCESSING_INSTRUCTION`, `PullProvider.ATTRIBUTE`, or `PullProvider.NAMESPACE` events. With some PullProvider implementations, including this one, it can also be used after `PullProvider.END_ELEMENT`: in fact, that is the main purpose of this class. If called at other times, the result is undefined and may result in an IllegalStateException. If called when the current node is an unnamed namespace node (a node representing the default namespace) the returned value is -1.

  Specified by:
    `getNameCode` in interface `PullProvider`
  Overrides:
    `getNameCode` in class `PullFilter`
  Returns:
    the nameCode. The nameCode can be used to obtain the prefix, local name, and namespace URI from the name pool.

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