Bug 174701 [Viewers] ViewerRow should be reused instead of connected to the Item
Currently we create a ViewerRow ver every Item we create this can degrade performance, we should cache the row and reuse it
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ColumnViewerEditor.java
.afterEditorActivated(activationEvent);
					}
				}
			}
		}
	}
	/**
	 * Applies the current value and deactivates the currently active cell
	 * editor.
	 */
	void applyEditorValue() {
		CellEditor c = this.cellEditor;
		if (c != null) {
			
			
			
			
			ColumnViewerEditorDeactivationEvent tmp = new ColumnViewerEditorDeactivationEvent(cell);
			if (editorActivationListener != null
					&& !editorActivationListener.isEmpty()) {
				Object[] ls = editorActivationListener.getListeners();
				for (int i = 0; i < ls.length; i++) {
					((ColumnViewerEditorActivationListener) ls[i])
							.beforeEditorDeactivated(tmp);
				}
			}
			this.cellEditor = null;
			this.activationEvent = null;
			Item t = this.cell.getItem();