net.sf.saxon.trace

Class ExpressionPresenter


public class ExpressionPresenter
extends java.lang.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
int
startElement(String name)
Start an element
void
startSubsidiaryElement(String name)
Start a child element in the output

Constructor Details

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 Details

close

public void close()
Close the output

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 -

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()

endSubsidiaryElement

public void endSubsidiaryElement()
End a child element in 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

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

startSubsidiaryElement

public void startSubsidiaryElement(String name)
Start a child element in the output
Parameters:
name - the name of the child element