/*
* Copyright (c) 2012-2016 Marsha Chechik, Alessio Di Sandro, Michalis Famelis,
* Rick Salay.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Alessio Di Sandro - Implementation.
*/
package edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.edit.policies;
import java.util.Iterator;
import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.gef.commands.Command;
import org.eclipse.gmf.runtime.common.core.command.ICompositeCommand;
import org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand;
import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand;
import org.eclipse.gmf.runtime.emf.type.core.commands.DestroyElementCommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
import org.eclipse.gmf.runtime.notation.Edge;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.gmf.runtime.notation.View;
/**
* @generated
*/
public class TableItemSemanticEditPolicy extends
edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.edit.policies.RelationalDatabase_MAVOBaseItemSemanticEditPolicy {
/**
* @generated
*/
public TableItemSemanticEditPolicy() {
super(edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.providers.RelationalDatabase_MAVOElementTypes.Table_2001);
}
/**
* @generated
*/
protected Command getDestroyElementCommand(DestroyElementRequest req) {
View view = (View) getHost().getModel();
CompositeTransactionalCommand cmd = new CompositeTransactionalCommand(getEditingDomain(), null);
cmd.setTransactionNestingEnabled(false);
EAnnotation annotation = view.getEAnnotation("Shortcut"); //$NON-NLS-1$
if (annotation == null) {
// there are indirectly referenced children, need extra commands: false
addDestroyChildNodesCommand(cmd);
addDestroyShortcutsCommand(cmd, view);
// delete host element
cmd.add(new DestroyElementCommand(req));
} else {
cmd.add(new DeleteCommand(getEditingDomain(), view));
}
return getGEFWrapper(cmd.reduce());
}
/**
* @generated
*/
private void addDestroyChildNodesCommand(ICompositeCommand cmd) {
View view = (View) getHost().getModel();
for (Iterator<?> nit = view.getChildren().iterator(); nit.hasNext();) {
Node node = (Node) nit.next();
switch (edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.part.RelationalDatabase_MAVOVisualIDRegistry
.getVisualID(node)) {
case edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.edit.parts.TableTableColumnsCompartmentEditPart.VISUAL_ID:
for (Iterator<?> cit = node.getChildren().iterator(); cit.hasNext();) {
Node cnode = (Node) cit.next();
switch (edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.part.RelationalDatabase_MAVOVisualIDRegistry
.getVisualID(cnode)) {
case edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.edit.parts.ColumnEditPart.VISUAL_ID:
for (Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
Edge incomingLink = (Edge) it.next();
if (edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.part.RelationalDatabase_MAVOVisualIDRegistry
.getVisualID(
incomingLink) == edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.edit.parts.TableColumnReferenceEditPart.VISUAL_ID) {
DestroyElementRequest r = new DestroyElementRequest(incomingLink.getElement(), false);
cmd.add(new DestroyElementCommand(r));
cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
continue;
}
if (edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.part.RelationalDatabase_MAVOVisualIDRegistry
.getVisualID(
incomingLink) == edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.edit.parts.ForeignColumnReferenceEditPart.VISUAL_ID) {
DestroyElementRequest r = new DestroyElementRequest(incomingLink.getElement(), false);
cmd.add(new DestroyElementCommand(r));
cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
continue;
}
}
cmd.add(new DestroyElementCommand(
new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: true
// don't need explicit deletion of cnode as parent's view deletion would clean child views as well
// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
break;
}
}
break;
case edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.edit.parts.TableTableForeignKeysCompartmentEditPart.VISUAL_ID:
for (Iterator<?> cit = node.getChildren().iterator(); cit.hasNext();) {
Node cnode = (Node) cit.next();
switch (edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.part.RelationalDatabase_MAVOVisualIDRegistry
.getVisualID(cnode)) {
case edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.edit.parts.ForeignKeyEditPart.VISUAL_ID:
for (Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
Edge outgoingLink = (Edge) it.next();
if (edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.part.RelationalDatabase_MAVOVisualIDRegistry
.getVisualID(
outgoingLink) == edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.edit.parts.TableColumnReferenceEditPart.VISUAL_ID) {
DestroyElementRequest r = new DestroyElementRequest(outgoingLink.getElement(), false);
cmd.add(new DestroyElementCommand(r));
cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
continue;
}
if (edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.part.RelationalDatabase_MAVOVisualIDRegistry
.getVisualID(
outgoingLink) == edu.toronto.cs.se.modelepedia.relationaldatabase_mavo.diagram.edit.parts.ForeignColumnReferenceEditPart.VISUAL_ID) {
DestroyElementRequest r = new DestroyElementRequest(outgoingLink.getElement(), false);
cmd.add(new DestroyElementCommand(r));
cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
continue;
}
}
cmd.add(new DestroyElementCommand(
new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: true
// don't need explicit deletion of cnode as parent's view deletion would clean child views as well
// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
break;
}
}
break;
}
}
}
}