LineNumberMap

java.lang.Object
- net.sf.saxon.tree.linked.LineNumberMap

```
public class LineNumberMap
extends java.lang.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.

Constructor Summary

Constructors
Constructor Description

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

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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