net.sf.saxon.event

Class Sink

java.lang.Object

net.sf.saxon.event.SequenceReceiver

net.sf.saxon.event.Sink

All Implemented Interfaces:

Result, Receiver

public class Sink
extends SequenceReceiver

A Sink is an Receiver that discards all information passed to it

Field Summary

Fields inherited from class net.sf.saxon.event.SequenceReceiver

pipelineConfiguration, previousAtomic, systemId

Fields inherited from interface javax.xml.transform.Result

PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING

Constructor Summary

Constructors

Constructor and Description
Sink(PipelineConfiguration pipe)

Method Summary

Methods

Modifier and Type	Method and Description
void	append(Item item, int locationId, int copyNamespaces) Append an arbitrary item (node or atomic value) to the output
void	attribute(NodeName nameCode, SimpleType typeCode, CharSequence value, int locationId, int properties) Notify an attribute.
void	characters(CharSequence chars, int locationId, int properties) Character data
void	close() End of event stream
void	comment(CharSequence chars, int locationId, int properties) Output a comment
void	endDocument() Notify the end of a document node
void	endElement() End of element
void	namespace(NamespaceBinding namespaceBinding, int properties) Notify a namespace.
void	open() Start of event stream
void	processingInstruction(String target, CharSequence data, int locationId, int properties) Processing Instruction
void	setUnparsedEntity(String name, String uri, String publicId) Set the URI for an unparsed entity in the document.
void	startContent() Notify the start of the content, that is, the completion of all attributes and namespaces.
void	startDocument(int properties) Start of a document node.
void	startElement(NodeName nameCode, SchemaType 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.SequenceReceiver

append, getConfiguration, getNamePool, getPipelineConfiguration, getSystemId, isTrueSequenceReceiver, setPipelineConfiguration, setSystemId

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Sink

public Sink(PipelineConfiguration pipe)

Method Detail

open

public void open()

Start of event stream

Specified by:

open in interface Receiver

Overrides:

open in class SequenceReceiver

close

public void close()

End of event stream

startDocument

public void startDocument(int properties)

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

endDocument

public void endDocument()

Notify the end of a document node

startElement

public void startElement(NodeName nameCode,
                SchemaType typeCode,
                int locationId,
                int properties)

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.

properties - for future use. Should be set to zero.

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.

namespace

public void namespace(NamespaceBinding namespaceBinding,
             int properties)

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; however, duplicates may be reported. A namespace must not conflict with any namespaces already used for element or attribute names.

Parameters:

namespaceBinding - the prefix/uri pair representing the namespace binding to be written

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:

java.lang.IllegalStateException: - attempt to output a namespace when there is no open element start tag

attribute

public void attribute(NodeName nameCode,
             SimpleType typeCode,
             CharSequence value,
             int locationId,
             int properties)

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

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

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.

Throws:

java.lang.IllegalStateException: - attempt to output an attribute when there is no open element start tag

startContent

public void startContent()

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.

endElement

public void endElement()

End of element

characters

public void characters(CharSequence chars,
              int locationId,
              int properties)

Character data

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

processingInstruction

public void processingInstruction(String target,
                         CharSequence data,
                         int locationId,
                         int properties)

Processing Instruction

Parameters:

target - 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.

comment

public void comment(CharSequence chars,
           int locationId,
           int properties)

Output a comment

Parameters:

chars - 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.

append

public void append(Item item,
          int locationId,
          int copyNamespaces)

Append an arbitrary item (node or atomic value) to the output

Specified by:

append in class SequenceReceiver

Parameters:

item - the item to be appended

locationId - the location of the calling instruction, for diagnostics

copyNamespaces - if the item is an element node, this indicates whether its namespaces need to be copied. Values are NodeInfo.ALL_NAMESPACES, NodeInfo.LOCAL_NAMESPACES, NodeInfo.NO_NAMESPACES

setUnparsedEntity

public void setUnparsedEntity(String name,
                     String uri,
                     String publicId)

Set the URI for an unparsed entity in the document.

Specified by:

setUnparsedEntity in interface Receiver

Overrides:

setUnparsedEntity in class SequenceReceiver

Parameters:

name - The name of the unparsed entity

uri - The system identifier of the unparsed entity

publicId - The public identifier of the unparsed entity

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