net.sf.saxon.trace
Class ExpressionPresenter

java.lang.Object
  net.sf.saxon.trace.ExpressionPresenter

public class ExpressionPresenter
extends Object

This class handles the display of an abstract expression tree in an XML format with some slight resemblence to XQueryX

Constructor Summary

ExpressionPresenter(Configuration config)
Make an ExpressionPresenter that writes indented output to System.err

ExpressionPresenter(Configuration config, OutputStream out)
Make an ExpressionPresenter that writes indented output to a specified output stream

ExpressionPresenter(Configuration config, Receiver receiver)
Make an ExpressionPresenter for a given Configuration using a user-supplied Receiver to accept the output

Method Summary

void	close() Close the output
static Receiver	defaultDestination(Configuration config, OutputStream out) Make a receiver, using default output properties, with serialized output going to a specified OutputStream
void	emitAttribute(String name, String value) Output an attribute node
int	endElement() End an element in the expression tree
void	endSubsidiaryElement() End a child element in the output
Configuration	getConfiguration() Get the Saxon configuration
NamePool	getNamePool() Get the name pool
TypeHierarchy	getTypeHierarchy() Get the type hierarchy cache
static Properties	makeDefaultProperties() Make a Properties object containing defaulted serialization attributes for the expression tree
int	startElement(String name) Start an element
void	startSubsidiaryElement(String name) Start a child element in the output

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionPresenter

public ExpressionPresenter(Configuration config)

Make an ExpressionPresenter that writes indented output to System.err

Parameters:

config - the Saxon configuration

ExpressionPresenter

public ExpressionPresenter(Configuration config,
                           OutputStream out)

Make an ExpressionPresenter that writes indented output to a specified output stream

Parameters:

config - the Saxon configuration

out - the output stream

ExpressionPresenter

public ExpressionPresenter(Configuration config,
                           Receiver receiver)

Make an ExpressionPresenter for a given Configuration using a user-supplied Receiver to accept the output

Parameters:

config - the Configuration

receiver - the user-supplied Receiver

Method Detail

defaultDestination

public static Receiver defaultDestination(Configuration config,
                                          OutputStream out)
                                   throws XPathException

Make a receiver, using default output properties, with serialized output going to a specified OutputStream

Parameters:

config - the Configuration

out - the OutputStream

Returns:

a Receiver that directs serialized output to this output stream

Throws:

XPathException

makeDefaultProperties

public static Properties makeDefaultProperties()

Make a Properties object containing defaulted serialization attributes for the expression tree

Returns:

a default set of properties

startElement

public int startElement(String name)

Start an element

Parameters:

name - the name of the element

Returns:

the depth of the tree before this element: for diagnostics, this can be compared with the value returned by endElement

emitAttribute

public void emitAttribute(String name,
                          String value)

Output an attribute node

Parameters:

name - the name of the attribute

value - the value of the attribute

endElement

public int endElement()

End an element in the expression tree

Returns:

the depth of the tree after ending this element. For diagnostics, this can be compared with the value returned by startElement()

startSubsidiaryElement

public void startSubsidiaryElement(String name)

Start a child element in the output

Parameters:

name - the name of the child element

endSubsidiaryElement

public void endSubsidiaryElement()

End a child element in the output

close

public void close()

Close the output

getConfiguration

public Configuration getConfiguration()

Get the Saxon configuration

Returns:

the Saxon configuration

getNamePool

public NamePool getNamePool()

Get the name pool

Returns:

the name pool

getTypeHierarchy

public TypeHierarchy getTypeHierarchy()

Get the type hierarchy cache

Returns:

the type hierarchy cache