Package net.sf.saxon.instruct
Class LocationMap
- java.lang.Object
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- net.sf.saxon.instruct.LocationMap
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- All Implemented Interfaces:
java.io.Serializable
,LocationProvider
public class LocationMap extends java.lang.Object implements LocationProvider, java.io.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
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Constructor Summary
Constructors Constructor Description LocationMap()
Create a location map
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
allocateLocationId(java.lang.String module, int lineNumber)
Allocate a location identifier to an expressionint
getColumnNumber(long locationId)
Get the column number within the document or module containing a particular locationint
getLineNumber(long locationId)
Get the line number corresponding to a locationIdjava.lang.String
getSystemId(long locationId)
Get the system identifier corresponding to a locationId
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Method Detail
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allocateLocationId
public int allocateLocationId(java.lang.String module, int lineNumber)
Allocate a location identifier to an expression- Parameters:
module
- the URI (system identifier) of the modulelineNumber
- the line number of the expression within the module- Returns:
- the corresponding location identifier
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getSystemId
public java.lang.String getSystemId(long locationId)
Get the system identifier corresponding to a locationId- Specified by:
getSystemId
in interfaceLocationProvider
- Parameters:
locationId
- the location identifier- Returns:
- the corresponding system identifier
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getLineNumber
public int getLineNumber(long locationId)
Get the line number corresponding to a locationId- Specified by:
getLineNumber
in interfaceLocationProvider
- Parameters:
locationId
- the location identifier- Returns:
- the corresponding line number
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getColumnNumber
public int getColumnNumber(long locationId)
Description copied from interface:LocationProvider
Get the column number within the document or module containing a particular location- Specified by:
getColumnNumber
in interfaceLocationProvider
- Parameters:
locationId
- identifier of the location in question (as passed down the Receiver pipeline)- Returns:
- the column number within the document or module, or -1 if this is not available
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