org.eclipse.rse.ui.view
Class SystemEmptyListAPIProviderImpl

java.lang.Object
  org.eclipse.rse.ui.view.SystemAbstractAPIProvider
      org.eclipse.rse.ui.view.SystemEmptyListAPIProviderImpl

All Implemented Interfaces:

IAdaptable, ISystemViewInputProvider

public class SystemEmptyListAPIProviderImpl

extends SystemAbstractAPIProvider

implements ISystemViewInputProvider

This class is a provider of root nodes to the remote systems tree viewer part. It is a special-case provider when we want the list to be empty.

Field Summary

protected Object[]

emptyList

Fields inherited from class org.eclipse.rse.ui.view.SystemAbstractAPIProvider

canceledObject, errorObject, msgList, nullObject, shell, sr, viewer

Constructor Summary

SystemEmptyListAPIProviderImpl()
Constructor

Method Summary

Object[]	getConnectionChildren(IHost selectedConnection) This method is called by the connection adapter when the user expands a connection.
Object[]	getSystemViewRoots() Return the children objects to consistute the root elements in the system view tree.
boolean	hasConnectionChildren(IHost selectedConnection) This method is called by the connection adapter when deciding to show a plus-sign or not beside a connection.
boolean	hasSystemViewRoots() Return true if getSystemViewRoots() will return a non-empty list We return false.
boolean	showActionBar() Return true to show the action bar (ie, toolbar) above the viewer.
boolean	showActions() Return true to show right-click popup actions on objects in the tree.
boolean	showButtonBar() Return true to show the button bar above the viewer.

Methods inherited from class org.eclipse.rse.ui.view.SystemAbstractAPIProvider

checkForNull, getAdapter, getAdapter, getCancelledMessageObject, getFailedMessageObject, getRemoteAdapter, getShell, getViewer, setShell, setViewer, showingConnections

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.rse.ui.view.ISystemViewInputProvider

getAdapter, getShell, getViewer, setShell, setViewer, showingConnections

Field Detail

emptyList

protected Object[] emptyList

Constructor Detail

SystemEmptyListAPIProviderImpl

public SystemEmptyListAPIProviderImpl()

Constructor

Method Detail

getSystemViewRoots

public Object[] getSystemViewRoots()

Return the children objects to consistute the root elements in the system view tree.

We return an empty list.

Specified by:

getSystemViewRoots in interface ISystemViewInputProvider

Returns:

the children objects to consistute the root elements in the system view tree

hasSystemViewRoots

public boolean hasSystemViewRoots()

Return true if getSystemViewRoots() will return a non-empty list We return false.

Specified by:

hasSystemViewRoots in interface ISystemViewInputProvider

Returns:

true if ISystemViewInputProvider.getSystemViewRoots() will return a non-empty list

getConnectionChildren

public Object[] getConnectionChildren(IHost selectedConnection)

This method is called by the connection adapter when the user expands a connection. This method must return the child objects to show for that connection.

We return an empty list

Specified by:

getConnectionChildren in interface ISystemViewInputProvider

Parameters:

selectedConnection - the connection undergoing expansion

Returns:

the list of objects under the connection

hasConnectionChildren

public boolean hasConnectionChildren(IHost selectedConnection)

This method is called by the connection adapter when deciding to show a plus-sign or not beside a connection. Return true if this connection has children to be shown.

we return false

Specified by:

hasConnectionChildren in interface ISystemViewInputProvider

Parameters:

selectedConnection - the connection being shown in the viewer

Returns:

true if this connection has children to be shown.

showActionBar

public boolean showActionBar()

Return true to show the action bar (ie, toolbar) above the viewer. The action bar contains connection actions, predominantly.

Specified by:

showActionBar in interface ISystemViewInputProvider

Overrides:

showActionBar in class SystemAbstractAPIProvider

showButtonBar

public boolean showButtonBar()

Return true to show the button bar above the viewer. The tool bar contains "Get List" and "Refresh" buttons and is typicall shown in dialogs that list only remote system objects.

Specified by:

showButtonBar in interface ISystemViewInputProvider

Overrides:

showButtonBar in class SystemAbstractAPIProvider

showActions

public boolean showActions()

Return true to show right-click popup actions on objects in the tree.

Specified by:

showActions in interface ISystemViewInputProvider

Overrides:

showActions in class SystemAbstractAPIProvider