edu.usc.cse.desi.viewers
Class LocContentProvider

java.lang.Object
  edu.usc.cse.desi.viewers.LocContentProvider

All Implemented Interfaces:

java.util.EventListener, org.eclipse.jface.viewers.IContentProvider, org.eclipse.jface.viewers.IStructuredContentProvider, java.beans.PropertyChangeListener

public class LocContentProvider

extends java.lang.Object

implements org.eclipse.jface.viewers.IStructuredContentProvider, java.beans.PropertyChangeListener

This is the content provider for the table that will display the Locational constraints for all of the hosts in the system. The content provider presents the data to the table and also listens for changes to the model.

Author:

NeLs Started on Sep 27, 2004

Field Summary

(package private) java.lang.Object[]	myCategoryNames
(package private) DESIViewModel	myModel
(package private) org.eclipse.jface.viewers.TableViewer	myTableViewer

Constructor Summary

LocContentProvider()

Method Summary

void	dispose() When the table is killed, we must make sure to remove ourselves as a listener to everythin that we're listening to.
java.lang.Object[]	getElements(java.lang.Object arg0) This method returns all the components so that the LabelProvider has access to them.
java.lang.Object[]	getMyCategoryNames()
void	inputChanged(org.eclipse.jface.viewers.Viewer arg0, java.lang.Object oldInput, java.lang.Object newInput) When the input changes, the tables must be resized, all listeners on the old model must be removed and all listeners must be added on the new model.
void	propertyChange(java.beans.PropertyChangeEvent arg0) On a property change we must refresh the table if properties have changes, or if the number of components has changed, we must resize the table.
private void	sizeTable(DESIViewModel model, org.eclipse.swt.widgets.Table table) Every time something changes that should make the table resize, for instance if the number of comps changes, this method should be called.

Methods inherited from class java.lang.Object

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

Field Detail

myTableViewer

org.eclipse.jface.viewers.TableViewer myTableViewer

myModel

DESIViewModel myModel

myCategoryNames

java.lang.Object[] myCategoryNames

Constructor Detail

LocContentProvider

public LocContentProvider()

Method Detail

getElements

public java.lang.Object[] getElements(java.lang.Object arg0)

This method returns all the components so that the LabelProvider has access to them.

Specified by:

getElements in interface org.eclipse.jface.viewers.IStructuredContentProvider

See Also:

IStructuredContentProvider.getElements(java.lang.Object)

propertyChange

public void propertyChange(java.beans.PropertyChangeEvent arg0)

On a property change we must refresh the table if properties have changes, or if the number of components has changed, we must resize the table. We must respond to component adds and removes and then resize the table. If the data of the link changes or if a link is removed or added then we must refresh the table.

Specified by:

propertyChange in interface java.beans.PropertyChangeListener

See Also:

PropertyChangeListener.propertyChange(java.beans.PropertyChangeEvent)

dispose

public void dispose()

When the table is killed, we must make sure to remove ourselves as a listener to everythin that we're listening to.

Specified by:

dispose in interface org.eclipse.jface.viewers.IContentProvider

See Also:

IContentProvider.dispose()

inputChanged

public void inputChanged(org.eclipse.jface.viewers.Viewer arg0,
                         java.lang.Object oldInput,
                         java.lang.Object newInput)

When the input changes, the tables must be resized, all listeners on the old model must be removed and all listeners must be added on the new model.

Specified by:

inputChanged in interface org.eclipse.jface.viewers.IContentProvider

See Also:

IContentProvider.inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)

getMyCategoryNames

public java.lang.Object[] getMyCategoryNames()

Returns:

Returns the myCategoryNames.

sizeTable

private void sizeTable(DESIViewModel model,
                       org.eclipse.swt.widgets.Table table)

Every time something changes that should make the table resize, for instance if the number of comps changes, this method should be called. It should also be called when the table viewer is first initialized. It is in charge of adding CellEditors to the TableViewer so that the contents of the table can be edited.

Parameters:

model -

table -