/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed 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: Serializer.java,v 1.2 2004/02/17 04:18:19 minchau Exp $
*/
package com.sun.org.apache.xml.internal.serializer;
import java.io.Writer;
import java.io.OutputStream;
import java.io.IOException;
import java.util.Properties;
import com.sun.org.apache.xml.internal.serializer.DOMSerializer;
import org.xml.sax.ContentHandler;
/**
* The Serializer interface is implemented by Serializers to publish methods to
* get and set streams and writers, to set the output properties, and get the
* Serializer as a ContentHandler or DOMSerializer.
*/
public interface Serializer {
/**
* Specifies an output stream to which the document should be
* serialized. This method should not be called while the
* serializer is in the process of serializing a document.
* <p>
* The encoding specified in the output {@link Properties} is used, or
* if no encoding was specified, the default for the selected
* output method.
*
* @param output The output stream
*/
public void setOutputStream(OutputStream output);
/**
* Get the output stream where the events will be serialized to.
*
* @return reference to the result stream, or null of only a writer was
* set.
*/
public OutputStream getOutputStream();
/**
* Specifies a writer to which the document should be serialized.
* This method should not be called while the serializer is in
* the process of serializing a document.
* <p>
* The encoding specified for the output {@link Properties} must be
* identical to the output format used with the writer.
*
* @param writer The output writer stream
*/
public void setWriter(Writer writer);
/**
* Get the character stream where the events will be serialized to.
*
* @return Reference to the result Writer, or null.
*/
public Writer getWriter();
/**
* Specifies an output format for this serializer. It the
* serializer has already been associated with an output format,
* it will switch to the new format. This method should not be
* called while the serializer is in the process of serializing
* a document.
*
* @param format The output format to use
*/
public void setOutputFormat(Properties format);
/**
* Returns the output format properties for this serializer.
*
* @return The output format in use
*/
public Properties getOutputFormat();
/**
* Return a {@link ContentHandler} interface into this serializer.
* If the serializer does not support the {@link ContentHandler}
* interface, it should return null.
*
* @return A {@link ContentHandler} interface into this serializer,
* or null if the serializer is not SAX 2 capable
* @throws IOException An I/O exception occured
*/
public ContentHandler asContentHandler() throws IOException;
/**
* Return a {@link DOMSerializer} interface into this serializer.
* If the serializer does not support the {@link DOMSerializer}
* interface, it should return null.
*
* @return A {@link DOMSerializer} interface into this serializer,
* or null if the serializer is not DOM capable
* @throws IOException An I/O exception occured
*/
public DOMSerializer asDOMSerializer() throws IOException;
/**
* Resets the serializer. If this method returns true, the
* serializer may be used for subsequent serialization of new
* documents. It is possible to change the output format and
* output stream prior to serializing, or to use the existing
* output format and output stream.
*
* @return True if serializer has been reset and can be reused
*/
public boolean reset();
}
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