com.saxonica.serialize
Class BinaryEmitter

java.lang.Object
  extended by net.sf.saxon.serialize.Emitter
      extended by com.saxonica.serialize.BinaryEmitter
All Implemented Interfaces:
Result, Receiver
Direct Known Subclasses:
Base64BinaryEmitter, HexBinaryEmitter

public abstract class BinaryEmitter
extends Emitter

This is an abstract superclass for the two binary output methods saxon:base64Binary and saxon:hexBinary.


Field Summary
 
Fields inherited from class net.sf.saxon.serialize.Emitter
allCharactersEncodable, characterSet, namePool, outputProperties, outputStream, pipelineConfig, streamResult, systemId, writer
 
Fields inherited from interface javax.xml.transform.Result
PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING
 
Constructor Summary
BinaryEmitter()
           
 
Method Summary
 void attribute(NodeName nameCode, SimpleType typeCode, CharSequence value, int locationId, int properties)
          Notify an attribute.
 void characters(CharSequence chars, int locationId, int properties)
          Notify character data.
 void comment(CharSequence content, int locationId, int properties)
          Notify a comment.
 void endDocument()
          Notify the end of a document node
 void endElement()
          Notify the end of an element.
 void namespace(NamespaceBinding namespaceBinding, int properties)
          Notify a namespace.
 void open()
          Notify the start of the event stream
 void processingInstruction(String name, CharSequence data, int locationId, int properties)
          Output a processing instruction
 void startContent()
          Notify the start of the content, that is, the completion of all attributes and namespaces.
 void startDocument(int properties)
          Notify the start of a document node
 void startElement(NodeName nameCode, SchemaType typeCode, int locationId, int properties)
          Notify the start of an element
protected abstract  byte[] textNodeToBinary(CharSequence chars)
           
 boolean usesTypeAnnotations()
          Ask whether this Receiver (or the downstream pipeline) makes any use of the type annotations supplied on element and attribute events
 boolean usesWriter()
          Determine whether the Emitter wants a Writer for character output or an OutputStream for binary output.
 
Methods inherited from class net.sf.saxon.serialize.Emitter
close, getConfiguration, getOutputProperties, getOutputStream, getPipelineConfiguration, getSystemId, getWriter, makeOutputStream, makeWriter, setOutputProperties, setOutputStream, setPipelineConfiguration, setStreamResult, setSystemId, setUnparsedEntity, setWriter
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

BinaryEmitter

public BinaryEmitter()
Method Detail

usesWriter

public boolean usesWriter()
Determine whether the Emitter wants a Writer for character output or an OutputStream for binary output. The standard Emitters all use a Writer, so this returns true; but a subclass can override this if it wants to use an OutputStream

Overrides:
usesWriter in class Emitter
Returns:
false: this Emitter uses an OutputStream

open

public void open()
          throws XPathException
Description copied from interface: Receiver
Notify the start of the event stream

Throws:
XPathException - if an error occurs

startDocument

public void startDocument(int properties)
                   throws XPathException
Description copied from interface: Receiver
Notify the start of a document node

Parameters:
properties - bit-significant integer indicating properties of the document node. The definitions of the bits are in class ReceiverOptions
Throws:
XPathException - if an error occurs

endDocument

public void endDocument()
                 throws XPathException
Description copied from interface: Receiver
Notify the end of a document node

Throws:
XPathException - if an error occurs

startElement

public void startElement(NodeName nameCode,
                         SchemaType typeCode,
                         int locationId,
                         int properties)
                  throws XPathException
Description copied from interface: Receiver
Notify the start of an element

Parameters:
nameCode - the name of the element.
typeCode - the type annotation of the element.
locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.
properties - bit-significant properties of the element node. If there are no revelant properties, zero is supplied. The definitions of the bits are in class ReceiverOptions
Throws:
XPathException - if an error occurs

namespace

public void namespace(NamespaceBinding namespaceBinding,
                      int properties)
               throws XPathException
Description copied from interface: Receiver
Notify a namespace. Namespaces are notified after the startElement event, and before any children for the element. The namespaces that are reported are only required to include those that are different from the parent element. The events represent namespace declarations and undeclarations rather than in-scope namespace nodes: an undeclaration is represented by a namespace code of zero. If the sequence of namespace events contains two A namespace must not conflict with any namespaces already used for element or attribute names.

Parameters:
namespaceBinding - contains the namespace prefix and namespace URI
properties - The most important property is REJECT_DUPLICATES. If this property is set, the namespace declaration will be rejected if it conflicts with a previous declaration of the same prefix. If the property is not set, the namespace declaration will be ignored if it conflicts with a previous declaration. This reflects the fact that when copying a tree, namespaces for child elements are emitted before the namespaces of their parent element. Unfortunately this conflicts with the XSLT rule for complex content construction, where the recovery action in the event of conflicts is to take the namespace that comes last. XSLT therefore doesn't recover from this error:
Throws:
XPathException - if an error occurs

attribute

public void attribute(NodeName nameCode,
                      SimpleType typeCode,
                      CharSequence value,
                      int locationId,
                      int properties)
               throws XPathException
Description copied from interface: Receiver
Notify an attribute. Attributes are notified after the startElement event, and before any children. Namespaces and attributes may be intermingled.

Parameters:
nameCode - The name of the attribute
typeCode - The type of the attribute, as held in the name pool. The additional bit NodeInfo.IS_DTD_TYPE may be set to indicate a DTD-derived type.
value - the string value of the attribute
locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.
properties - Bit significant value. The following bits are defined:
DISABLE_ESCAPING
Disable escaping for this attribute
NO_SPECIAL_CHARACTERS
Attribute value contains no special characters
Throws:
XPathException - if an error occurs

startContent

public void startContent()
                  throws XPathException
Description copied from interface: Receiver
Notify the start of the content, that is, the completion of all attributes and namespaces. Note that the initial receiver of output from XSLT instructions will not receive this event, it has to detect it itself. Note that this event is reported for every element even if it has no attributes, no namespaces, and no content.

Throws:
XPathException - if an error occurs

endElement

public void endElement()
                throws XPathException
Description copied from interface: Receiver
Notify the end of an element. The receiver must maintain a stack if it needs to know which element is ending.

Throws:
XPathException - if an error occurs

characters

public void characters(CharSequence chars,
                       int locationId,
                       int properties)
                throws XPathException
Description copied from interface: Receiver
Notify character data. Note that some receivers may require the character data to be sent in a single event, but in general this is not a requirement.

Parameters:
chars - The characters
locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.
properties - Bit significant value. The following bits are defined:
DISABLE_ESCAPING
Disable escaping for this text node
USE_CDATA
Output as a CDATA section
Throws:
XPathException - if an error occurs

textNodeToBinary

protected abstract byte[] textNodeToBinary(CharSequence chars)
                                    throws XPathException
Throws:
XPathException

processingInstruction

public void processingInstruction(String name,
                                  CharSequence data,
                                  int locationId,
                                  int properties)
                           throws XPathException
Description copied from interface: Receiver
Output a processing instruction

Parameters:
name - The PI name. This must be a legal name (it will not be checked).
data - The data portion of the processing instruction
locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.
properties - Additional information about the PI.
Throws:
XPathException - if an error occurs

comment

public void comment(CharSequence content,
                    int locationId,
                    int properties)
             throws XPathException
Description copied from interface: Receiver
Notify a comment. Comments are only notified if they are outside the DTD.

Parameters:
content - The content of the comment
locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.
properties - Additional information about the comment.
Throws:
XPathException - if an error occurs

usesTypeAnnotations

public boolean usesTypeAnnotations()
Description copied from class: Emitter
Ask whether this Receiver (or the downstream pipeline) makes any use of the type annotations supplied on element and attribute events

Specified by:
usesTypeAnnotations in interface Receiver
Overrides:
usesTypeAnnotations in class Emitter
Returns:
true if the Receiver makes any use of this information. If false, the caller may supply untyped nodes instead of supplying the type annotation (or conversely, it may avoid stripping unwanted type annotations)


Copyright (c) 2004-2011 Saxonica Limited. All rights reserved.