net.sf.saxon.tree
Class LineNumberMap

java.lang.Object
  extended by net.sf.saxon.tree.LineNumberMap

public class LineNumberMap
extends Object

Line numbers are not held in nodes in the tree, because they are not usually needed. This class provides a map from element sequence numbers to line numbers: it is linked to the root node of the tree.

Author:
Michael H. Kay

Constructor Summary
LineNumberMap()
          Create a LineNumberMap with an initial capacity of 200 nodes, which is expanded as necessary
 
Method Summary
 int getColumnNumber(int sequence)
          Get the column number corresponding to a given sequence number
 int getLineNumber(int sequence)
          Get the line number corresponding to a given sequence number
 void setLineAndColumn(int sequence, int line, int column)
          Set the line number corresponding to a given sequence number
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

LineNumberMap

public LineNumberMap()
Create a LineNumberMap with an initial capacity of 200 nodes, which is expanded as necessary

Method Detail

setLineAndColumn

public void setLineAndColumn(int sequence,
                             int line,
                             int column)
Set the line number corresponding to a given sequence number

Parameters:
sequence - the sequence number of the node
line - the line number position of the node
column - the column position of the node

getLineNumber

public int getLineNumber(int sequence)
Get the line number corresponding to a given sequence number

Parameters:
sequence - the sequence number held in the node
Returns:
the corresponding line number

getColumnNumber

public int getColumnNumber(int sequence)
Get the column number corresponding to a given sequence number

Parameters:
sequence - the sequence number held in the node
Returns:
the corresponding column number


Copyright (c) Saxonica Limited. All rights reserved.