## net.sf.saxon.s9api
Class Serializer

    java.lang.Object
      net.sf.saxon.s9api.Serializer

All Implemented Interfaces:
  Destination

    public class Serializer

extends Object
implements Destination

A Serializer takes a tree representation of XML and turns it into lexical XML markup.

Note that this is XML serialization in the sense of the W3C XSLT and XQuery specifications. This has nothing to do with the serialization of Java objects, or the `Serializable` interface.

The serialization may be influenced by a number of serialization parameters. A parameter has a name, which is an instance of `Serializer.Property`, and a value, which is expressed as a string. The effect of most of the properties is as described in the W3C specification XSLT 2.0 and XQuery 1.0 Serialization. Saxon supports all the serialization parameters defined in that specification, together with some additional parameters, whose property names are prefixed "SAXON_".

Serialization parameters defined via this interface take precedence over any serialization parameters defined within the source of the query or stylesheet.

Nested Class Summary
`static class` `Serializer.Property`

Constructor Summary
`Serializer()` Create a Serializer
`Serializer(File file)` Create a Serializer initialized to write to a given File.
`Serializer(OutputStream stream)` Create a Serializer initialized to write to a given OutputStream.
`Serializer(Writer writer)` Create a Serializer initialized to write to a given Writer.

Method Summary
`void` `close()` Close any resources associated with this destination.
`Object` `getOutputDestination()` Get the current output destination.
`String` `getOutputProperty(Serializer.Property property)` Get the value of a serialization property
`Receiver` `getReceiver(Configuration config)` Return a receiver to which Saxon will send events.
`protected Receiver` `getReceiver(Executable executable)` Return a receiver to which Saxon will send events.
`XMLStreamWriter` `getXMLStreamWriter()` Get an XMLStreamWriter that can be used for writing application-generated XML to be output via this serializer.
`void` `serializeNode(XdmNode node)` Serialize an XdmNode to the selected output destination using this serializer
`String` `serializeNodeToString(XdmNode node)` Serialize an XdmNode to a string using this serializer
`void` `setOutputFile(File file)` Set the destination of the serialized output, as a File.
`void` `setOutputProperty(Serializer.Property property, String value)` Set the value of a serialization property.
`void` `setOutputStream(OutputStream stream)` Set the destination of the serialized output, as an OutputStream.
`void` `setOutputWriter(Writer writer)` Set the destination of the serialized output, as a Writer.
`void` `setProcessor(Processor processor)` Set the Processor associated with this Serializer.

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

Constructor Detail

### Serializer

    public Serializer()

  Create a Serializer

### Serializer

    public Serializer(OutputStream stream)

  Create a Serializer initialized to write to a given OutputStream.

  Closing the output stream after use is the responsibility of the caller.

  Parameters:
    `stream` - The OutputStream to which the Serializer will write

### Serializer

    public Serializer(Writer writer)

  Create a Serializer initialized to write to a given Writer.

  Closing the writer after use is the responsibility of the caller.

  Parameters:
    `writer` - The Writer to which the Serializer will write

### Serializer

    public Serializer(File file)

  Create a Serializer initialized to write to a given File.

  Parameters:
    `file` - The File to which the Serializer will write

Method Detail

### setProcessor

    public void setProcessor(Processor processor)

  Set the Processor associated with this Serializer. This will be called automatically if the serializer is created using one of the `Processor.newSerializer()` methods. The Serializer currently needs to know about the Processor only if the method `getXMLStreamWriter()` is called.

  Parameters:
    `processor` - the associated Processor
  Since:
    9.3

### setOutputProperty

    public void setOutputProperty(Serializer.Property property,
                                  String value)

  Set the value of a serialization property. Any existing value of the property is overridden. If the supplied value is null, any existing value of the property is removed.

  Example:

  `serializer.setOutputProperty(Serializer.Property.METHOD, "xml");`

  Any serialization properties supplied via this interface take precedence over serialization properties defined in the source stylesheet or query.

  Parameters:
    `property` - The name of the property to be set
    `value` - The value of the property, as a string. The format is generally as defined in the `xsl:output` declaration in XSLT: this means that boolean properties, for example, are represented using the strings "yes" and "no". Properties whose values are QNames, such as `cdata-section-elements` are expressed using the Clark representation of a QName, that is "{uri}local". Multi-valued properties (again, `cdata-section-elements` is an example) are expressed as a space-separated list.
  Throws:
    `IllegalArgumentException` - if the value of the property is invalid. The property is validated individually; invalid combinations of properties will be detected only when the properties are actually used to serialize an XML event stream.

### getOutputProperty

    public String getOutputProperty(Serializer.Property property)

  Get the value of a serialization property

  Parameters:
    `property` - the name of the required property
  Returns:
    the value of the required property as a string, or null if the property has not been given any value.

### setOutputWriter

    public void setOutputWriter(Writer writer)

  Set the destination of the serialized output, as a Writer.

  Note that when this option is used, the serializer does not perform character encoding. This also means that it never replaces special characters with XML numeric character references. The final encoding is the responsibility of the supplied Writer.

  Closing the writer after use is the responsibility of the caller.

  Calling this method has the side-effect of setting the OutputStream and OutputFile to null.

  Parameters:
    `writer` - the Writer to which the serialized XML output will be written.

### setOutputStream

    public void setOutputStream(OutputStream stream)

  Set the destination of the serialized output, as an OutputStream.

  Closing the output stream after use is the responsibility of the caller.

  Calling this method has the side-effect of setting the OutputWriter and OutputFile to null.

  Parameters:
    `stream` - the OutputStream to which the serialized XML output will be written.

### setOutputFile

    public void setOutputFile(File file)

  Set the destination of the serialized output, as a File.

  Calling this method has the side-effect of setting the current OutputWriter and OutputStream to null.

  Parameters:
    `file` - the File to which the serialized XML output will be written.

### serializeNode

    public void serializeNode(XdmNode node)
                       throws SaxonApiException

  Serialize an XdmNode to the selected output destination using this serializer

  Parameters:
    `node` - The node to be serialized
  Throws:
    `IllegalStateException` - if no outputStream, Writer, or File has been supplied as the destination for the serialized output
    `SaxonApiException` - if a serialization error or I/O error occurs
  Since:
    9.3

### serializeNodeToString

    public String serializeNodeToString(XdmNode node)
                                 throws SaxonApiException

  Serialize an XdmNode to a string using this serializer

  Parameters:
    `node` - The node to be serialized
  Throws:
    `SaxonApiException` - if a serialization error occurs
  Since:
    9.3

### getXMLStreamWriter

    public XMLStreamWriter getXMLStreamWriter()
                                       throws SaxonApiException

  Get an XMLStreamWriter that can be used for writing application-generated XML to be output via this serializer.

  Returns:
    a newly constructed XMLStreamWriter that pipes events into this Serializer
  Throws:
    `IllegalStateException` - if no Processor has been set for this Serializer
    `SaxonApiException`
  Since:
    9.3

### getOutputDestination

    public Object getOutputDestination()

  Get the current output destination.

  Returns:
    an OutputStream, Writer, or File, depending on the previous calls to `setOutputStream(java.io.OutputStream)`, `setOutputWriter(java.io.Writer)`, or `setOutputFile(java.io.File)`; or null, if no output destination has been set up.

### getReceiver

    public Receiver getReceiver(Configuration config)
                         throws SaxonApiException

  Return a receiver to which Saxon will send events. This method is provided primarily for internal use, though it could also be called by user applications wanting to make use of the Saxon serializer.

  Specified by:
    `getReceiver` in interface `Destination`
  Parameters:
    `config` - The Saxon configuration. This is an internal implementation object held within the `Processor`
  Returns:
    a receiver to which XML events will be sent
  Throws:
    `SaxonApiException` - if the Receiver cannot be created

### getReceiver

    protected Receiver getReceiver(Executable executable)
                            throws SaxonApiException

  Return a receiver to which Saxon will send events. This method is provided primarily for internal use, though it could also be called by user applications wanting to make use of the Saxon serializer.

  Parameters:
    `executable` - The Saxon Executable for the transformation or query. The serialization properties defined in this Serializer are supplemented by properties that have been defined in the query or stylesheet associated with the Executable. The properties defined in this Serializer take precedence over those in the stylesheet or query.
  Returns:
    a receiver to which XML events will be sent
  Throws:
    `SaxonApiException`

### close

    public void close()
               throws SaxonApiException

  Close any resources associated with this destination. Note that this does not close any user-supplied OutputStream or Writer; those must be closed explicitly by the calling application.

  Specified by:
    `close` in interface `Destination`
  Throws:
    `SaxonApiException`

Copyright (c) 2004-2010 Saxonica Limited. All rights reserved.