dsto.dfc.swt.viewers
Class AbstractCreateItemCommand

java.lang.Object
  dsto.dfc.util.BasicPropertyEventSource
      dsto.dfc.swt.commands.AbstractCommand
          dsto.dfc.swt.viewers.AbstractCreateItemCommand

All Implemented Interfaces:

Command, Copyable, JavaBean, PropertyEventSource, Serializable, Cloneable

public abstract class AbstractCreateItemCommand
extends AbstractCommand

Abstract base class for commands that create new items in a collection being viewed by a JFace StructuredViewer. Handles common behaviour of creating then selecting new items. Subclasses can simply implement createItem().

Version:

$Revision$

Author:

mpp

See Also:

Serialized Form

Field Summary

protected Collection	items
protected org.eclipse.jface.viewers.StructuredViewer	view

Fields inherited from class dsto.dfc.swt.commands.AbstractCommand

NO_ICON

Constructor Summary

AbstractCreateItemCommand(org.eclipse.jface.viewers.StructuredViewer view)

AbstractCreateItemCommand(org.eclipse.jface.viewers.StructuredViewer view, Collection items)
Create a new instance.

Method Summary

protected void	addItem(Object item)
protected abstract Object	createItem() Subclasses should implement this to create a new item.
void	execute() Execute the command.
Collection	getItems()
org.eclipse.jface.viewers.StructuredViewer	getView()

Methods inherited from class dsto.dfc.swt.commands.AbstractCommand

addCommandListener, clone, createDefaultDisplayName, fireCommandExecuted, fireCommandExecuted, getAccelerator, getContextMenuGroup, getDescription, getDisplayName, getGroupInView, getIcon, getLogString, getMainMenuGroup, getMnemonic, getName, getToolbarGroup, isEnabled, isInteractive, removeCommandListener, setAccelerator, setContextMenuGroup, setDescription, setDisplayName, setEnabled, setIcon, setInteractive, setMainMenuGroup, setMnemonic, setName, setToolbarGroup

Methods inherited from class dsto.dfc.util.BasicPropertyEventSource

addPropertyChangeListener, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getPropertyChangeSource, removePropertyChangeListener, setPropertyChangeSource

Methods inherited from class java.lang.Object

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

Methods inherited from interface dsto.dfc.util.PropertyEventSource

addPropertyChangeListener, removePropertyChangeListener

Field Detail

view

protected org.eclipse.jface.viewers.StructuredViewer view

items

protected Collection items

Constructor Detail

AbstractCreateItemCommand

public AbstractCreateItemCommand(org.eclipse.jface.viewers.StructuredViewer view)

AbstractCreateItemCommand

public AbstractCreateItemCommand(org.eclipse.jface.viewers.StructuredViewer view,
                                 Collection items)

Create a new instance.

Parameters:

view - The viewer that is showing the groups.

items - The collection to add new items to. It is assumed that the viewer is listening for changes.

Method Detail

getView

public org.eclipse.jface.viewers.StructuredViewer getView()

getItems

public Collection getItems()

execute

public void execute()

Description copied from interface: Command

Execute the command. Commands should fire CommandListener.commandExecuted(CommandEvent) when executed.

Specified by:

execute in interface Command

Specified by:

execute in class AbstractCommand

addItem

protected void addItem(Object item)

createItem

protected abstract Object createItem()

Subclasses should implement this to create a new item.

Returns:

The new item, or null if no item to be added (eg dialog was cancelled).