net.sf.saxon.instruct

Class LocationMap

java.lang.Object

net.sf.saxon.instruct.LocationMap

All Implemented Interfaces:

Serializable, LocationProvider

public class LocationMap
extends Object
implements LocationProvider, Serializable

A LocationMap allocates integer codes to (systemId, lineNumber) pairs. The integer codes are held inside an Expression object to track the location of the expression in the source code

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
LocationMap()

Method Summary

Modifier and Type	Method and Description
int	allocateLocationId(String module, int lineNumber) Allocate a location identifier to an expression
int	getLineNumber(int locationId) Get the line number corresponding to a locationId
String	getSystemId(int locationId) Get the system identifier corresponding to a locationId

Methods inherited from class java.lang.Object

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

Constructor Detail

LocationMap

public LocationMap()

Method Detail

allocateLocationId

public int allocateLocationId(String module,
                              int lineNumber)

Allocate a location identifier to an expression

getSystemId

public String getSystemId(int locationId)

Get the system identifier corresponding to a locationId

Specified by:

getSystemId in interface LocationProvider

Parameters:

locationId - identifier of the location in question (as passed down the Receiver pipeline)

Returns:

the URI of the document or module.

getLineNumber

public int getLineNumber(int locationId)

Get the line number corresponding to a locationId

Specified by:

getLineNumber in interface LocationProvider

Parameters:

locationId - identifier of the location in question (as passed down the Receiver pipeline)

Returns:

the line number within the document or module.