| /****************************************************************************** |
| * Copyright (c) 2005, 2006 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| ****************************************************************************/ |
| |
| package org.eclipse.gmf.runtime.emf.type.core.requests; |
| |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EReference; |
| import org.eclipse.emf.transaction.TransactionalEditingDomain; |
| import org.eclipse.emf.transaction.util.TransactionUtil; |
| import org.eclipse.gmf.runtime.emf.type.core.IElementType; |
| |
| /** |
| * Request to create a new relationship element. |
| * |
| * @author ldamus |
| */ |
| public class CreateRelationshipRequest extends CreateElementRequest { |
| |
| /** |
| * The parameter name for the relationship source. |
| */ |
| public static final String SOURCE = "CreateRelationshipRequest.source"; //$NON-NLS-1$ |
| |
| /** |
| * The parameter name for the relationship target. |
| */ |
| public static final String TARGET = "CreateRelationshipRequest.target"; //$NON-NLS-1$ |
| |
| /** |
| * The source of the relationship. |
| */ |
| private EObject source; |
| |
| /** |
| * The target of the relationship. |
| */ |
| private EObject target; |
| |
| /** |
| * <code>true</code> if the user should be prompted to create any parts |
| * necessary to the creation of the new relationship, <code>false</code> |
| * otherwise. |
| */ |
| private boolean prompt; |
| |
| /** |
| * Constructs a new request to create a new relationship. |
| * |
| * @param editingDomain |
| * the editing domain in which I am requesting to make model |
| * @param container |
| * the container for the new relationship |
| * @param source |
| * the source of the new relationship |
| * @param target |
| * the target of the new relationship |
| * @param elementType |
| * the element type of the new relationship |
| * @param containmentFeature |
| * the feature that will contain the new relationship |
| */ |
| public CreateRelationshipRequest(TransactionalEditingDomain editingDomain, |
| EObject container, EObject source, EObject target, |
| IElementType elementType, EReference containmentFeature) { |
| |
| super(editingDomain, container, elementType, containmentFeature); |
| |
| this.source = source; |
| this.target = target; |
| } |
| |
| /** |
| * Constructs a new request to create a new relationship. |
| * |
| * @param editingDomain |
| * the editing domain in which I am requesting to make model |
| * @param container |
| * the container for the new relationship |
| * @param source |
| * the source of the new relationship |
| * @param target |
| * the target of the new relationship |
| * @param elementType |
| * the element type of the new relationship |
| */ |
| public CreateRelationshipRequest(TransactionalEditingDomain editingDomain, |
| EObject container, EObject source, EObject target, |
| IElementType elementType) { |
| |
| this(editingDomain, container, source, target, elementType, null); |
| } |
| |
| /** |
| * Constructs a new request to create a new relationship. |
| * |
| * @param editingDomain |
| * the editing domain in which I am requesting to make model |
| * @param source |
| * the source of the new relationship |
| * @param target |
| * the target of the new relationship |
| * @param elementType |
| * the element type of the new relationship |
| */ |
| public CreateRelationshipRequest(TransactionalEditingDomain editingDomain, |
| EObject source, EObject target, IElementType elementType) { |
| |
| this(editingDomain, null, source, target, elementType, null); |
| } |
| |
| /** |
| * Constructs a new request to create a new relationship. The editing domain |
| * will be derived from the result of {@link #getContainer()}. |
| * |
| * @param source |
| * the source of the new relationship |
| * @param target |
| * the target of the new relationship |
| * @param elementType |
| * the element type of the new relationship |
| */ |
| public CreateRelationshipRequest(EObject source, EObject target, |
| IElementType elementType) { |
| |
| this(null, null, source, target, elementType, null); |
| } |
| |
| /** |
| * Constructs a new request to create a new relationship. |
| * |
| * @param editingDomain |
| * the editing domain in which I am requesting to make model |
| * @param elementType |
| * the element type of the new relationship |
| */ |
| public CreateRelationshipRequest(TransactionalEditingDomain editingDomain, |
| IElementType elementType) { |
| |
| this(editingDomain, null, null, null, elementType, null); |
| } |
| |
| /** |
| * Constructs a new request to create a new relationship. The editing domain will |
| * be derived from the result of {@link #getContainer()}. |
| * |
| * @param elementType |
| * the element type of the new relationship |
| */ |
| public CreateRelationshipRequest( |
| IElementType elementType) { |
| |
| this(null, null, null, null, elementType, null); |
| } |
| |
| /** |
| * Constructs a new request to create a new relationship. The |
| * editing domain will be derived from <code>container</code>. |
| * |
| * @param container |
| * the container for the new relationship |
| * @param source |
| * the source of the new relationship |
| * @param target |
| * the target of the new relationship |
| * @param elementType |
| * the element type of the new relationship |
| * @param containmentFeature |
| * the feature that will contain the new relationship |
| */ |
| public CreateRelationshipRequest(EObject container, EObject source, |
| EObject target, IElementType elementType, |
| EReference containmentFeature) { |
| |
| this(TransactionUtil.getEditingDomain(container), container, source, |
| target, elementType, containmentFeature); |
| } |
| |
| /** |
| * Constructs a new request to create a new relationship. The |
| * editing domain will be derived from <code>container</code>. |
| * |
| * @param container |
| * the container for the new relationship |
| * @param source |
| * the source of the new relationship |
| * @param target |
| * the target of the new relationship |
| * @param elementType |
| * the element type of the new relationship |
| */ |
| public CreateRelationshipRequest(EObject container, EObject source, |
| EObject target, IElementType elementType) { |
| |
| this(TransactionUtil.getEditingDomain(container), container, source, |
| target, elementType); |
| } |
| |
| /** |
| * Gets the source of the new relationship. |
| * |
| * @return the source of the new relationship |
| */ |
| public EObject getSource() { |
| return source; |
| } |
| |
| /** |
| * Sets the relationship source. |
| * <p> |
| * Does nothing of the source has not changed. Othewise, invalidates the |
| * edit helper context and containment feature. |
| * |
| * @param source |
| * the relationship source |
| */ |
| public void setSource(EObject source) { |
| |
| if (this.source != source) { |
| |
| this.source = source; |
| invalidateEditHelperContext(); |
| |
| if (super.getContainer() == null) { |
| invalidateContainmentFeature(); |
| } |
| } |
| } |
| |
| /** |
| * Gets the target of the new relationship. |
| * |
| * @return the target of the new relationship |
| */ |
| public EObject getTarget() { |
| return target; |
| } |
| |
| /** |
| * Sets the relationship target. |
| * <p> |
| * Does nothing of the target has not changed. Otherwise, invalidates the |
| * edit helper context. |
| * |
| * @param target |
| * the relationship target |
| */ |
| public void setTarget(EObject target) { |
| |
| if (this.target != target) { |
| this.target = target; |
| invalidateEditHelperContext(); |
| } |
| } |
| |
| /** |
| * Gets the container for the new element. |
| * |
| * @return the container for the new element. |
| */ |
| public EObject getContainer() { |
| |
| EObject eObject = super.getContainer(); |
| |
| if (eObject == null) { |
| return getSource(); |
| } |
| return eObject; |
| } |
| |
| /** |
| * Gets the value of the prompt flag. |
| * |
| * @return <code>true</code> if the user should be prompted to create any |
| * parts necessary to the creation of the new relationship, |
| * <code>false</code> if defaults should be used. |
| */ |
| public boolean isPrompt() { |
| return prompt; |
| } |
| |
| /** |
| * Sets the value of the prompt flag. |
| * |
| * @param prompt |
| * <code>true</code> if the user should be prompted to create |
| * any parts necessary to the creation of the new relationship, |
| * <code>false</code> if defaults should be used. |
| */ |
| public void setPrompt(boolean prompt) { |
| this.prompt = prompt; |
| |
| } |
| } |