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java.lang.Objectnet.sf.saxon.event.SequenceReceiver
net.sf.saxon.event.ProxyReceiver
com.saxonica.stream.Projector
public class Projector
This class uses a PathMap to do document projection.
It acts as a push filter, passing through only those events that are necessary
to evaluate the expression that was used to generate the PathMap.
| Field Summary |
|---|
| 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 | |
|---|---|
Projector(PathMap.PathMapRoot pathMapRoot,
Receiver next)
Create a document projector |
|
| 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)
Character data |
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 |
outputStatistics(PrintStream out)
Output statistics showing the effectiveness of filtering |
void |
processingInstruction(String target,
CharSequence data,
int locationId,
int properties)
Processing Instruction |
void |
setPipelineConfiguration(PipelineConfiguration pipe)
Set the pipeline configuration |
void |
startElement(NodeName elemName,
SchemaType typeCode,
int locationId,
int properties)
Notify the start of an element |
| Methods inherited from class net.sf.saxon.event.ProxyReceiver |
|---|
append, close, getNamePool, getUnderlyingReceiver, open, setSystemId, setUnderlyingReceiver, setUnparsedEntity, startContent, startDocument, usesTypeAnnotations |
| Methods inherited from class net.sf.saxon.event.SequenceReceiver |
|---|
append, getConfiguration, getPipelineConfiguration, getSystemId |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public Projector(PathMap.PathMapRoot pathMapRoot,
Receiver next)
pathMapRoot - defines the paths within the document that need to be retainednext - the next receiver in the pipeline| Method Detail |
|---|
public void setPipelineConfiguration(PipelineConfiguration pipe)
Receiver
setPipelineConfiguration in interface ReceiversetPipelineConfiguration in class ProxyReceiverpipe - the pipeline configuration
public void startElement(NodeName elemName,
SchemaType typeCode,
int locationId,
int properties)
throws XPathException
ProxyReceiver
startElement in interface ReceiverstartElement in class ProxyReceiverelemName - integer code identifying the name of the element within the name pool.typeCode - integer code identifying the element's type within the name pool.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 - properties of the element node
XPathException - if an error occurs
public void attribute(NodeName nameCode,
SimpleType typeCode,
CharSequence value,
int locationId,
int properties)
throws XPathException
ProxyReceiver
attribute in interface Receiverattribute in class ProxyReceivernameCode - The name of the attribute, as held in the name pooltypeCode - The type of the attribute, as held in the name poolvalue - the string value of the attributelocationId - 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:
XPathException - if an error occurs
public void namespace(NamespaceBinding namespaceBinding,
int properties)
throws XPathException
ProxyReceiver
namespace in interface Receivernamespace in class ProxyReceivernamespaceBinding - the prefix/uri pair representing the namespace bindingproperties - any special properties to be passed on this call
XPathException - if an error occurs
public void characters(CharSequence chars,
int locationId,
int properties)
throws XPathException
ProxyReceiver
characters in interface Receivercharacters in class ProxyReceiverchars - The characterslocationId - 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:
XPathException - if an error occurs
public void comment(CharSequence chars,
int locationId,
int properties)
throws XPathException
ProxyReceiver
comment in interface Receivercomment in class ProxyReceiverchars - The content of the commentlocationId - 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.
XPathException - if an error occurs
public void processingInstruction(String target,
CharSequence data,
int locationId,
int properties)
throws XPathException
ProxyReceiver
processingInstruction in interface ReceiverprocessingInstruction in class ProxyReceivertarget - The PI name. This must be a legal name (it will not be checked).data - The data portion of the processing instructionlocationId - 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.
XPathException - if an error occurs
public void endElement()
throws XPathException
ProxyReceiver
endElement in interface ReceiverendElement in class ProxyReceiverXPathException - if an error occurs
public void endDocument()
throws XPathException
ProxyReceiver
endDocument in interface ReceiverendDocument in class ProxyReceiverXPathException - if an error occurspublic void outputStatistics(PrintStream out)
out - the output destination
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