net.sf.saxon.event

Class SequenceNormalizer

java.lang.Object

net.sf.saxon.event.SequenceReceiver

net.sf.saxon.event.ProxyReceiver

net.sf.saxon.event.SequenceNormalizer

All Implemented Interfaces:

Result, Receiver

Direct Known Subclasses:

SequenceNormalizerWithItemSeparator, SequenceNormalizerWithSpaceSeparator

public abstract class SequenceNormalizer
extends ProxyReceiver

Implement the "sequence normalization" logic as defined in the XSLT 3.0/XQuery 3.0 serialization spec.

There are two subclasses, which handle the different logic for the case where an item-separator is provided, and the case where whitespace-separation is used. Note that the whitespace case behaves differently from the case where the item-separator is set to a single space.

Because this Receiver is often used as the entry point to the pipeline for a Destination, it includes logic allowing onClose action for the Destination to be triggered when the Receiver is closed.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	inStartTag
protected int	level

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

nextReceiver

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
SequenceNormalizer(Receiver next)

Method Summary

Modifier and Type	Method and Description
void	attribute(NodeName name, SimpleType typeCode, CharSequence value, Location locationId, int properties) Notify an attribute.
void	characters(CharSequence chars, Location locationId, int properties) Character data
void	close() End of output.
void	comment(CharSequence chars, Location locationId, int properties) Output a comment
void	endDocument() Notify the end of a document node
void	endElement() End of element
void	namespace(NamespaceBindingSet namespaceBindings, int properties) Notify a namespace.
void	onClose(Action action)
void	onClose(List<Action> actionList) Set actions to be performed when this Receiver is closed
void	open() Start of event stream
void	processingInstruction(String target, CharSequence data, Location locationId, int properties) Processing Instruction
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 elemName, SchemaType typeCode, Location location, int properties) Notify the start of an element

Methods inherited from class net.sf.saxon.event.ProxyReceiver

append, getNamePool, getNextReceiver, setPipelineConfiguration, setSystemId, setUnderlyingReceiver, setUnparsedEntity, usesTypeAnnotations

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

append, decompose, flatten, getConfiguration, getErrorCodeForDecomposingFunctionItems, getPipelineConfiguration, getSystemId, handlesAppend

Methods inherited from class java.lang.Object

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

Field Detail

level

protected int level

inStartTag

protected boolean inStartTag

Constructor Detail

SequenceNormalizer

public SequenceNormalizer(Receiver next)

Method Detail

open

public void open()
          throws XPathException

Start of event stream

Specified by:

open in interface Receiver

Overrides:

open in class ProxyReceiver

Throws:

XPathException - if an error occurs

startDocument

public void startDocument(int properties)
                   throws XPathException

Start of a document node.

Specified by:

startDocument in interface Receiver

Overrides:

startDocument in class ProxyReceiver

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

Notify the end of a document node

Specified by:

endDocument in interface Receiver

Overrides:

endDocument in class ProxyReceiver

Throws:

XPathException - if an error occurs

startElement

public void startElement(NodeName elemName,
                         SchemaType typeCode,
                         Location location,
                         int properties)
                  throws XPathException

Notify the start of an element

Specified by:

startElement in interface Receiver

Overrides:

startElement in class ProxyReceiver

Parameters:

elemName - integer code identifying the name of the element within the name pool.

typeCode - integer code identifying the element's type within the name pool.

location -

properties - properties of the element node

Throws:

XPathException - if an error occurs

attribute

public void attribute(NodeName name,
                      SimpleType typeCode,
                      CharSequence value,
                      Location 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.

Specified by:

attribute in interface Receiver

Overrides:

attribute in class ProxyReceiver

Parameters:

name - The name of the attribute

typeCode - The type of the attribute

value -

locationId - the location of the node in the source, or of the instruction that created it

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:

IllegalStateException: - attempt to output an attribute when there is no open element

XPathException - if an error occurs

namespace

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

Specified by:

namespace in interface Receiver

Overrides:

namespace in class ProxyReceiver

Parameters:

namespaceBindings - the prefix/uri pair representing the namespace binding

properties - any special properties to be passed on this call

Throws:

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

XPathException - if an error occurs

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.

Specified by:

startContent in interface Receiver

Overrides:

startContent in class ProxyReceiver

Throws:

XPathException - if an error occurs

characters

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

Character data

Specified by:

characters in interface Receiver

Overrides:

characters in class ProxyReceiver

Parameters:

chars - The characters

locationId - provides information such as line number and system ID.

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

processingInstruction

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

Processing Instruction

Specified by:

processingInstruction in interface Receiver

Overrides:

processingInstruction in class ProxyReceiver

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 - provides information such as line number and system ID.

properties - Additional information about the PI.

Throws:

XPathException - if an error occurs

comment

public void comment(CharSequence chars,
                    Location locationId,
                    int properties)
             throws XPathException

Output a comment

Specified by:

comment in interface Receiver

Overrides:

comment in class ProxyReceiver

Parameters:

chars - The content of the comment

locationId - provides information such as line number and system ID.

properties - Additional information about the comment.

Throws:

XPathException - if an error occurs

endElement

public void endElement()
                throws XPathException

End of element

Specified by:

endElement in interface Receiver

Overrides:

endElement in class ProxyReceiver

Throws:

XPathException - if an error occurs

close

public void close()
           throws XPathException

End of output. Note that closing this receiver also closes the rest of the pipeline.

Specified by:

close in interface Receiver

Overrides:

close in class ProxyReceiver

Throws:

XPathException - if an error occurs

onClose

public void onClose(List<Action> actionList)

Set actions to be performed when this Receiver is closed

Parameters:

actionList - a list of actions to be performed

onClose

public void onClose(Action action)