org.apache.xalan.transformer.QueuedEvents Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* $Id: QueuedEvents.java 468645 2006-10-28 06:57:24Z minchau $
*/
package org.apache.xalan.transformer;
import java.util.Vector;
import org.apache.xml.utils.MutableAttrListImpl;
/**
* This class acts as a base for ResultTreeHandler, and keeps
* queud stack events. In truth, we don't need a stack,
* so I may change this down the line a bit.
*/
public abstract class QueuedEvents
{
/** The number of events queued */
protected int m_eventCount = 0;
/** Queued start document */
// QueuedStartDocument m_startDoc = new QueuedStartDocument();
/** Queued start element */
// QueuedStartElement m_startElement = new QueuedStartElement();
public boolean m_docPending = false;
protected boolean m_docEnded = false;
/** Flag indicating that an event is pending. Public for
* fast access by ElemForEach. */
public boolean m_elemIsPending = false;
/** Flag indicating that an event is ended */
public boolean m_elemIsEnded = false;
/**
* The pending attributes. We have to delay the call to
* m_flistener.startElement(name, atts) because of the
* xsl:attribute and xsl:copy calls. In other words,
* the attributes have to be fully collected before you
* can call startElement.
*/
protected MutableAttrListImpl m_attributes = new MutableAttrListImpl();
/**
* Flag to try and get the xmlns decls to the attribute list
* before other attributes are added.
*/
protected boolean m_nsDeclsHaveBeenAdded = false;
/**
* The pending element, namespace, and local name.
*/
protected String m_name;
/** Namespace URL of the element */
protected String m_url;
/** Local part of qualified name of the element */
protected String m_localName;
/** Vector of namespaces for this element */
protected Vector m_namespaces = null;
// /**
// * Get the queued element.
// *
// * @return the queued element.
// */
// QueuedStartElement getQueuedElem()
// {
// return (m_eventCount > 1) ? m_startElement : null;
// }
/**
* To re-initialize the document and element events
*
*/
protected void reInitEvents()
{
}
/**
* Push document event and re-initialize events
*
*/
public void reset()
{
pushDocumentEvent();
reInitEvents();
}
/**
* Push the document event. This never gets popped.
*/
void pushDocumentEvent()
{
// m_startDoc.setPending(true);
// initQSE(m_startDoc);
m_docPending = true;
m_eventCount++;
}
/**
* Pop element event
*
*/
void popEvent()
{
m_elemIsPending = false;
m_attributes.clear();
m_nsDeclsHaveBeenAdded = false;
m_name = null;
m_url = null;
m_localName = null;
m_namespaces = null;
m_eventCount--;
}
/** Instance of a serializer */
private org.apache.xml.serializer.Serializer m_serializer;
/**
* This is only for use of object pooling, so that
* it can be reset.
*
* @param s non-null instance of a serializer
*/
void setSerializer(org.apache.xml.serializer.Serializer s)
{
m_serializer = s;
}
/**
* This is only for use of object pooling, so the that
* it can be reset.
*
* @return The serializer
*/
org.apache.xml.serializer.Serializer getSerializer()
{
return m_serializer;
}
}