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Serializer.javaAPI DocJava SE 6 API8221Tue Jun 10 00:23:06 BST 2008com.sun.org.apache.xml.internal.serializer

Serializer

public interface Serializer
The Serializer interface is implemented by a serializer to enable users to:
  • get and set streams or writers
  • configure the serializer with key/value properties
  • get an org.xml.sax.ContentHandler or a DOMSerializer to provide input to

Here is an example using the asContentHandler() method:

java.util.Properties props =
OutputPropertiesFactory.getDefaultMethodProperties(Method.TEXT);
Serializer ser = SerializerFactory.getSerializer(props);
java.io.PrintStream ostream = System.out;
ser.setOutputStream(ostream);

// Provide the SAX input events
ContentHandler handler = ser.asContentHandler();
handler.startDocument();
char[] chars = { 'a', 'b', 'c' };
handler.characters(chars, 0, chars.length);
handler.endDocument();

ser.reset(); // get ready to use the serializer for another document
// of the same output method (TEXT).

As an alternate to supplying a series of SAX events as input through the ContentHandler interface, the input to serialize may be given as a DOM.

For example:

org.w3c.dom.Document inputDoc;
com.sun.org.apache.xml.internal.serializer.Serializer ser;
java.io.Writer owriter;

java.util.Properties props =
OutputPropertiesFactory.getDefaultMethodProperties(Method.XML);
Serializer ser = SerializerFactory.getSerializer(props);
owriter = ...; // create a writer to serialize the document to
ser.setWriter( owriter );

inputDoc = ...; // create the DOM document to be serialized
DOMSerializer dser = ser.asDOMSerializer(); // a DOM will be serialized
dser.serialize(inputDoc); // serialize the DOM, sending output to owriter

ser.reset(); // get ready to use the serializer for another document
// of the same output method.
This interface is a public API.
see
Method
see
OutputPropertiesFactory
see
SerializerFactory
see
DOMSerializer
see
ContentHandler
xsl.usage
general

Fields Summary
Constructors Summary
Methods Summary
public org.xml.sax.ContentHandlerasContentHandler()
Return a {@link ContentHandler} interface to provide SAX input to. Through the returned object the document to be serailized, as a series of SAX events, can be provided to the serialzier. If the serializer does not support the {@link ContentHandler} interface, it will return null.

In principle only one of asDOMSerializer() or asContentHander() should be called.

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 com.sun.org.apache.xml.internal.serializer.DOMSerializerasDOMSerializer()
Return a {@link DOMSerializer} interface into this serializer. Through the returned object the document to be serialized, a DOM, can be provided to the serializer. If the serializer does not support the {@link DOMSerializer} interface, it should return null.

In principle only one of asDOMSerializer() or asContentHander() should be called.

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 java.util.PropertiesgetOutputFormat()
Returns the output format properties for this serializer.

return
The output format key/value pairs in use.

public java.io.OutputStreamgetOutputStream()
Get the output stream where the events will be serialized to.

return
reference to the result stream, or null if only a writer was set.

public java.io.WritergetWriter()
Get the character stream where the events will be serialized to.

return
Reference to the result Writer, or null.

public booleanreset()
This method 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 reuse the existing output format and output stream or writer.

return
True if serializer has been reset and can be reused

public voidsetOutputFormat(java.util.Properties format)
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.

The standard property keys supported are: "method", "version", "encoding", "omit-xml-declaration", "standalone", doctype-public", "doctype-system", "cdata-section-elements", "indent", "media-type". These property keys and their values are described in the XSLT recommendation, see {@link XSLT 1.0 recommendation}

The non-standard property keys supported are defined in {@link OutputPropertiesFactory}.

This method can be called multiple times before a document is serialized. Each time it is called more, or over-riding property values, can be specified. One property value that can not be changed is that of the "method" property key.

The value of the "cdata-section-elements" property key is a whitespace separated list of elements. If the element is in a namespace then value is passed in this format: {uri}localName

If the "cdata-section-elements" key is specified on multiple calls to this method the set of elements specified in the value is not replaced from one call to the next, but it is cumulative across the calls.

param
format The output format to use, as a set of key/value pairs.

public voidsetOutputStream(java.io.OutputStream output)
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.

The encoding specified in the output {@link Properties} is used, or if no encoding was specified, the default for the selected output method.

Only one of setWriter() or setOutputStream() should be called.

param
output The output stream

public voidsetWriter(java.io.Writer writer)
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.

The encoding specified for the output {@link Properties} must be identical to the output format used with the writer.

Only one of setWriter() or setOutputStream() should be called.

param
writer The output writer stream