Package net.sf.saxon.serialize
Class Emitter
java.lang.Object
net.sf.saxon.event.SequenceReceiver
net.sf.saxon.serialize.Emitter
- All Implemented Interfaces:
Result
,Receiver
,ReceiverWithOutputProperties
- Direct Known Subclasses:
BinaryEmitter
,XMLEmitter
Emitter: This abstract class defines methods that must be implemented by
components that format SAXON output. There is one emitter for XML,
one for HTML, and so on. Additional methods are concerned with
setting options and providing a Writer.
The interface is deliberately designed to be as close as possible to the standard SAX2 ContentHandler interface, however, it allows additional information to be made available.
An Emitter is a Receiver, specifically it is a Receiver that can direct output to a Writer or OutputStream, using serialization properties defined in a Properties object.
The Emitter (from 11.0 onwards) writes to a UnicodeWriter, which may itself bridge to a Writer or OutputStream.
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected boolean
protected CharacterSet
protected Properties
protected UnicodeWriter
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
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
Append an arbitrary item (node or atomic value) to the outputvoid
close()
Notify the end of the event streamGet the output propertiesvoid
setMustClose
(boolean mustClose) Set a flag indicating that the unicode writer must be closed after use.void
setOutputProperties
(Properties details) Set output propertiesvoid
setUnicodeWriter
(UnicodeWriter unicodeWriter) Set the output destination to which the emitter's output will be writtenvoid
setUnparsedEntity
(String name, String uri, String publicId) Set unparsed entity URI.boolean
Ask whether this Receiver (or the downstream pipeline) makes any use of the type annotations supplied on element and attribute eventsMethods inherited from class net.sf.saxon.event.SequenceReceiver
append, decompose, flatten, getConfiguration, getErrorCodeForDecomposingFunctionItems, getNamePool, getPipelineConfiguration, getSystemId, handlesAppend, open, setPipelineConfiguration, setSystemId
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface net.sf.saxon.event.Receiver
append, characters, comment, endDocument, endElement, getPipelineConfiguration, handlesAppend, open, processingInstruction, setPipelineConfiguration, startDocument, startElement
Methods inherited from interface javax.xml.transform.Result
getSystemId, setSystemId
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Field Details
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writer
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outputProperties
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characterSet
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allCharactersEncodable
protected boolean allCharactersEncodable
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Constructor Details
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Emitter
public Emitter()
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Method Details
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setOutputProperties
Set output properties- Parameters:
details
- the output serialization properties- Throws:
XPathException
- if an error occurs finding the encoding property
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getOutputProperties
Get the output properties- Specified by:
getOutputProperties
in interfaceReceiverWithOutputProperties
- Returns:
- the output serialization properties. The returned value will be null if setOutputProperties() has not been called
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setUnicodeWriter
Set the output destination to which the emitter's output will be written- Parameters:
unicodeWriter
- the output destination
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setMustClose
public void setMustClose(boolean mustClose) Set a flag indicating that the unicode writer must be closed after use. This will generally be true if the writer was created by Saxon, and false if it was supplied by the user- Parameters:
mustClose
- true if the unicode writer is to be closed after use.
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setUnparsedEntity
Set unparsed entity URI. Needed to satisfy the Receiver interface, but not used, because unparsed entities can occur only in input documents, not in output documents.- Specified by:
setUnparsedEntity
in interfaceReceiver
- Overrides:
setUnparsedEntity
in classSequenceReceiver
- Parameters:
name
- the entity nameuri
- the entity system IDpublicId
- the entity public ID- Throws:
XPathException
- if an error occurs
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close
Notify the end of the event stream- Specified by:
close
in interfaceReceiver
- Throws:
XPathException
- if an error occurs
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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- Specified by:
usesTypeAnnotations
in interfaceReceiver
- 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)
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append
Append an arbitrary item (node or atomic value) to the output- Specified by:
append
in interfaceReceiver
- Specified by:
append
in classSequenceReceiver
- Parameters:
item
- the item to be appendedlocationId
- the location of the calling instruction, for diagnosticscopyNamespaces
- if the item is an element node, this indicates whether its namespaces need to be copied. Values areReceiverOption.ALL_NAMESPACES
; the default (0) means- Throws:
XPathException
- if an error occurs
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