org.eclipse.wb.swt
Class TableViewerColumnSorter

java.lang.Object
  org.eclipse.jface.viewers.ViewerComparator
      org.eclipse.wb.swt.TableViewerColumnSorter

public class TableViewerColumnSorter
extends org.eclipse.jface.viewers.ViewerComparator

Helper for sorting TableViewer by one of its TableViewerColumns.

Originally from http://wiki.eclipse.org/index.php/JFaceSnippets, Snippet040TableViewerSorting.

Field Summary

static int	ASC
static int	DESC
static int	NONE

Constructor Summary

TableViewerColumnSorter(org.eclipse.jface.viewers.TableViewerColumn column)

Method Summary

int	compare(org.eclipse.jface.viewers.Viewer viewer, java.lang.Object e1, java.lang.Object e2)
protected int	doCompare(org.eclipse.jface.viewers.Viewer viewer, java.lang.Object e1, java.lang.Object e2) Compares to elements of viewer.
protected java.lang.Object	getValue(java.lang.Object o)
void	setSorter(int direction)

Methods inherited from class org.eclipse.jface.viewers.ViewerComparator

category, getComparator, isSorterProperty, sort

Methods inherited from class java.lang.Object

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

Field Detail

ASC

public static final int ASC

See Also:

Constant Field Values

NONE

public static final int NONE

See Also:

Constant Field Values

DESC

public static final int DESC

See Also:

Constant Field Values

Constructor Detail

TableViewerColumnSorter

public TableViewerColumnSorter(org.eclipse.jface.viewers.TableViewerColumn column)

Method Detail

setSorter

public void setSorter(int direction)

compare

public int compare(org.eclipse.jface.viewers.Viewer viewer,
                   java.lang.Object e1,
                   java.lang.Object e2)

Overrides:

compare in class org.eclipse.jface.viewers.ViewerComparator

doCompare

protected int doCompare(org.eclipse.jface.viewers.Viewer viewer,
                        java.lang.Object e1,
                        java.lang.Object e2)

Compares to elements of viewer. By default tries to compare values extracted from these elements using getValue(Object), because usually you want to compare value of some attribute.

getValue

protected java.lang.Object getValue(java.lang.Object o)

Returns:

the value to compare in doCompare(Viewer, Object, Object). Be default tries to get it from EditingSupport. May return null.