File	Doc	Category	Size	Date	Package
XMLStreamFilterImpl.java	API Doc	Java SE 6 API	12926	Tue Jun 10 00:22:40 BST 2008	com.sun.org.apache.xerces.internal.impl

XMLStreamFilterImpl

• java.lang.Object

Fields Summary
private StreamFilter	fStreamFilter
private XMLStreamReader	fStreamReader
private int	fCurrentEvent
private boolean	fEventAccepted
private boolean	fStreamAdvancedByHasNext the very issue around a long discussion. but since we must pass the TCK, we have to allow hasNext() to advance the underlining stream in order to find the next acceptable event

Constructors Summary

public XMLStreamFilterImpl(XMLStreamReader reader, StreamFilter filter) Creates a new instance of XMLStreamFilterImpl fStreamReader = reader; this.fStreamFilter = filter; //this is debatable to initiate at an acceptable event, //but it's neccessary in order to pass the TCK and yet avoid skipping element try { if (fStreamFilter.accept(fStreamReader)) { fEventAccepted = true; } else { findNextEvent(); } }catch(XMLStreamException xs){ System.err.println("Error while creating a stream Filter"+xs); }

Methods Summary
public void	close() throws XMLStreamException fStreamReader.close();
private int	findNextEvent() fStreamAdvancedByHasNext = false; while(fStreamReader.hasNext()){ fCurrentEvent = fStreamReader.next(); if(fStreamFilter.accept(fStreamReader)){ fEventAccepted = true; return fCurrentEvent; } } //although it seems that IllegalStateException should be thrown when next() is called //on a stream that has no more items, we have to assume END_DOCUMENT is always accepted //in order to pass the TCK if (fCurrentEvent == XMLEvent.END_DOCUMENT) return fCurrentEvent; else return -1;
private int	findNextTag() fStreamAdvancedByHasNext = false; while(fStreamReader.hasNext()){ fCurrentEvent = fStreamReader.nextTag(); if(fStreamFilter.accept(fStreamReader)){ fEventAccepted = true; return fCurrentEvent; } } if (fCurrentEvent == XMLEvent.END_DOCUMENT) return fCurrentEvent; else return -1;
public int	getAttributeCount() return return fStreamReader.getAttributeCount();
public java.lang.String	getAttributeLocalName(int index) param index return return fStreamReader.getAttributeLocalName(index);
public javax.xml.namespace.QName	getAttributeName(int index) param index return return fStreamReader.getAttributeName(index);
public java.lang.String	getAttributeNamespace(int index) param index return return fStreamReader.getAttributeNamespace(index);
public java.lang.String	getAttributePrefix(int index) param index return return fStreamReader.getAttributePrefix(index);
public java.lang.String	getAttributeType(int index) param index return return fStreamReader.getAttributeType(index);
public java.lang.String	getAttributeValue(int index) param index return return fStreamReader.getAttributeValue(index);
public java.lang.String	getAttributeValue(java.lang.String namespaceURI, java.lang.String localName) param namespaceURI param localName return return fStreamReader.getAttributeValue(namespaceURI,localName);
public java.lang.String	getCharacterEncodingScheme() return return fStreamReader.getCharacterEncodingScheme();
public java.lang.String	getElementText() throws XMLStreamException return return fStreamReader.getElementText();
public java.lang.String	getEncoding() return return fStreamReader.getEncoding();
public int	getEventType() return return fStreamReader.getEventType();
public java.lang.String	getLocalName() return return fStreamReader.getLocalName();
public javax.xml.stream.Location	getLocation() return return fStreamReader.getLocation();
public javax.xml.namespace.QName	getName() return return fStreamReader.getName();
public javax.xml.namespace.NamespaceContext	getNamespaceContext() return return fStreamReader.getNamespaceContext();
public int	getNamespaceCount() return return fStreamReader.getNamespaceCount();
public java.lang.String	getNamespacePrefix(int index) param index return return fStreamReader.getNamespacePrefix(index);
public java.lang.String	getNamespaceURI() return return fStreamReader.getNamespaceURI();
public java.lang.String	getNamespaceURI(int index) param index return return fStreamReader.getNamespaceURI(index);
public java.lang.String	getNamespaceURI(java.lang.String prefix) param prefix return return fStreamReader.getNamespaceURI(prefix);
public java.lang.String	getPIData() return return fStreamReader.getPIData();
public java.lang.String	getPITarget() return return fStreamReader.getPITarget();
public java.lang.String	getPrefix() return return fStreamReader.getPrefix();
public java.lang.Object	getProperty(java.lang.String name) param name throws IllegalArgumentException return return fStreamReader.getProperty(name);
public java.lang.String	getText() return return fStreamReader.getText();
public char[]	getTextCharacters() return return fStreamReader.getTextCharacters();
public int	getTextCharacters(int sourceStart, char[] target, int targetStart, int length) param sourceStart param target param targetStart param length throws XMLStreamException return return fStreamReader.getTextCharacters(sourceStart, target,targetStart,length);
public int	getTextLength() return return fStreamReader.getTextLength();
public int	getTextStart() return return fStreamReader.getTextStart();
public java.lang.String	getVersion() return return fStreamReader.getVersion();
public boolean	hasName() return return fStreamReader.hasName();
public boolean	hasNext() throws XMLStreamException return if (fStreamReader.hasNext()) { if (!fEventAccepted) { if ((fCurrentEvent = findNextEvent()) == -1) { return false; } else { fStreamAdvancedByHasNext = true; } } return true; } return false;
public boolean	hasText() return return fStreamReader.hasText();
public boolean	isAttributeSpecified(int index) return param index return fStreamReader.isAttributeSpecified(index);
public boolean	isCharacters() return return fStreamReader.isCharacters();
public boolean	isEndElement() return return fStreamReader.isEndElement();
public boolean	isStandalone() return return fStreamReader.isStandalone();
public boolean	isStartElement() return return fStreamReader.isStartElement();
public boolean	isWhiteSpace() return return fStreamReader.isWhiteSpace();
public int	next() return throws XMLStreamException if (fStreamAdvancedByHasNext && fEventAccepted) { fStreamAdvancedByHasNext = false; return fCurrentEvent; } int event = findNextEvent(); if (event != -1) { return event; } throw new IllegalStateException("The stream reader has reached the end of the document, or there are no more "+ " items to return");
public int	nextTag() throws XMLStreamException return if (fStreamAdvancedByHasNext && fEventAccepted && (fCurrentEvent == XMLEvent.START_ELEMENT || fCurrentEvent == XMLEvent.START_ELEMENT)) { fStreamAdvancedByHasNext = false; return fCurrentEvent; } int event = findNextTag(); if (event != -1) { return event; } throw new IllegalStateException("The stream reader has reached the end of the document, or there are no more "+ " items to return");
public void	require(int type, java.lang.String namespaceURI, java.lang.String localName) param type param namespaceURI param localName throws XMLStreamException fStreamReader.require(type,namespaceURI,localName);
protected void	setStreamFilter(javax.xml.stream.StreamFilter sf) param sf this.fStreamFilter = sf;
public boolean	standaloneSet() return return fStreamReader.standaloneSet();