com.saxonica.ptree
Class PTreeEmitter

java.lang.Object
  extended by net.sf.saxon.event.Emitter
      extended by com.saxonica.ptree.PTreeEmitter
All Implemented Interfaces:
Result, Receiver

public class PTreeEmitter
extends Emitter

An Emitter (serializer) to output a result tree in Saxon PTree format


Field Summary
 
Fields inherited from class net.sf.saxon.event.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
PTreeEmitter()
           
 
Method Summary
 void attribute(int nameCode, int typeCode, CharSequence value, int locationId, int properties)
          Notify an attribute.
 void characters(CharSequence chars, int locationId, int properties)
          Notify character data.
 void close()
          Notify the end of the event stream
 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(int namespaceCode, 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 setPipelineConfiguration(PipelineConfiguration config)
          Set the namePool in which all name codes can be found, and other configuration details
 void setStreamResult(StreamResult result)
          Set the StreamResult acting as the output destination of the Emitter
 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(int nameCode, int typeCode, int locationId, int properties)
          Notify the start of an element
 boolean usesTypeAnnotations()
          Ask whether this Receiver (or the downstream pipeline) makes any use of the type annotations supplied on element and attribute events
 
Methods inherited from class net.sf.saxon.event.Emitter
getConfiguration, getOutputProperties, getOutputStream, getPipelineConfiguration, getSystemId, getWriter, makeWriter, setOutputProperties, setOutputStream, setSystemId, setUnparsedEntity, setWriter, usesWriter
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

PTreeEmitter

public PTreeEmitter()
Method Detail

setPipelineConfiguration

public void setPipelineConfiguration(PipelineConfiguration config)
Set the namePool in which all name codes can be found, and other configuration details

Specified by:
setPipelineConfiguration in interface Receiver
Overrides:
setPipelineConfiguration in class Emitter
Parameters:
config - the pipeline configuration

setStreamResult

public void setStreamResult(StreamResult result)
                     throws XPathException
Set the StreamResult acting as the output destination of the Emitter

Overrides:
setStreamResult in class Emitter
Parameters:
result - the output destination
Throws:
XPathException

attribute

public void attribute(int nameCode,
                      int typeCode,
                      CharSequence value,
                      int locationId,
                      int properties)
               throws XPathException
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, as held in the name pool
typeCode - The type of the attribute, as held in the name pool
locationId - an integer which can be interpreted using a LocationMap 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
value - the string value of the attribute
Throws:
IllegalStateException: - attempt to output an attribute when there is no open element start tag
XPathException

characters

public void characters(CharSequence chars,
                       int locationId,
                       int properties)
                throws XPathException
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 LocationMap 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

close

public void close()
           throws XPathException
Notify the end of the event stream

Throws:
XPathException

comment

public void comment(CharSequence content,
                    int locationId,
                    int properties)
             throws XPathException
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 LocationMap 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. The following bits are defined:
CHECKED
Comment is known to be legal (e.g. doesn't contain "--")
Throws:
IllegalArgumentException: - the content is invalid for an XML comment
XPathException

endDocument

public void endDocument()
                 throws XPathException
Notify the end of a document node

Throws:
XPathException

endElement

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

Throws:
XPathException

namespace

public void namespace(int namespaceCode,
                      int properties)
               throws XPathException
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:
namespaceCode - an integer: the top half is a prefix code, the bottom half a URI code. These may be translated into an actual prefix and URI using the name pool. A prefix code of zero represents the empty prefix (that is, the default namespace). A URI code of zero represents a URI of "", that is, a namespace undeclaration.
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: it sets the REJECT_DUPLICATES flag, and this is treated as a hard error.
Throws:
XPathException

open

public void open()
          throws XPathException
Notify the start of the event stream

Throws:
XPathException

processingInstruction

public void processingInstruction(String name,
                                  CharSequence data,
                                  int locationId,
                                  int properties)
                           throws XPathException
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 LocationMap 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. The following bits are defined:
CHECKED
Data is known to be legal (e.g. doesn't contain "?>")
Throws:
IllegalArgumentException: - the content is invalid for an XML processing instruction
XPathException

startContent

public void startContent()
                  throws XPathException
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

startDocument

public void startDocument(int properties)
                   throws XPathException
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

startElement

public void startElement(int nameCode,
                         int typeCode,
                         int locationId,
                         int properties)
                  throws XPathException
Notify the start of an element

Parameters:
nameCode - integer code identifying the name of the element within the name pool.
typeCode - integer code identifying the element's type within the name pool. The value -1 indicates the default type, xs:untyped.
locationId - an integer which can be interpreted using a LocationMap 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
Throws:
XPathException

usesTypeAnnotations

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

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


Copyright (c) Saxonica Limited. All rights reserved.