| package org.eclipse.jface.viewers; |
| |
| /* |
| * (c) Copyright IBM Corp. 2000, 2001. |
| * All Rights Reserved. |
| */ |
| |
| /** |
| * A content provider mediates between the viewer's model |
| * and the viewer itself. |
| * |
| * @see IViewer#setContentProvider |
| */ |
| public interface IContentProvider { |
| /** |
| * Disposes of this content provider. |
| * This is called by the viewer when it is disposed. |
| * <p> |
| * The viewer should not updated during this call, as it is in the process |
| * of being disposed. |
| * </p> |
| */ |
| public void dispose(); |
| /** |
| * Notifies this content provider that the given viewer's input |
| * has been switched to a different element. |
| * <p> |
| * A typical use for this method is registering the content provider as a listener |
| * to changes on the new input (using model-specific means), and deregistering the viewer |
| * from the old input. In response to these change notifications, the content provider |
| * should update the viewer (see the add, remove, update and refresh methods on the viewers). |
| * </p> |
| * <p> |
| * The viewer should not updated during this call, as it might be in the process |
| * of being disposed. |
| * </p> |
| * |
| * @param viewer the viewer |
| * @param oldInput the old input element, or <code>null</code> if the viewer |
| * did not previously have an input |
| * @param newInput the new input element, or <code>null</code> if the viewer |
| * does not have an input |
| */ |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput); |
| } |
