/*******************************************************************************
* Copyright (c) 2001, 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.jst.j2ee.ejb.internal.impl;
import java.util.Collection;
import java.util.List;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.ecore.util.EObjectContainmentEList;
import org.eclipse.emf.ecore.util.EObjectContainmentWithInverseEList;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.ecore.util.InternalEList;
import org.eclipse.jst.j2ee.common.Description;
import org.eclipse.jst.j2ee.common.internal.impl.J2EEEObjectImpl;
import org.eclipse.jst.j2ee.ejb.CommonRelationshipRole;
import org.eclipse.jst.j2ee.ejb.EJBRelation;
import org.eclipse.jst.j2ee.ejb.EJBRelationshipRole;
import org.eclipse.jst.j2ee.ejb.EjbPackage;
import org.eclipse.jst.j2ee.ejb.Relationships;
/**
* The ejb-relation element describes a relationship between two entity beans with container managed persistence. An ejb-relation element contains a description; an optional ejb-relation-name element; and exactly two relationship role declarations, defined by the ejb-relationship-roles. The name of the relationship, if specified, is unique within the ejb-jar file.
*
* @invariant The name of the relationship, if specified, is unique within the ejb-jar file.
* @invariant self.relationshipRoles.size == 2
* @invariant self.relationshipRoles[0].name != self.relationshipRoles[1].name
*
* @migration EJB1.1 Moved from ejbext::EjbRelationshipRole contained under ejbext::EJBJarExtension
* @migration EJB1.1 added optional attribute, description:String
* @migration EJB1.1 added optional attribute, name:String (May have been inherited from EObject previously)
* @generated
*/
public class EJBRelationImpl extends J2EEEObjectImpl implements EJBRelation {
/**
* The default value of the '{@link #getDescription() <em>Description</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getDescription()
* @generated
* @ordered
*/
protected static final String DESCRIPTION_EDEFAULT = null;
/**
* @generated This field/method will be replaced during code generation.
*/
/**
* @generated This field/method will be replaced during code generation.
*/
protected String description = DESCRIPTION_EDEFAULT;
/**
* The default value of the '{@link #getName() <em>Name</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getName()
* @generated
* @ordered
*/
protected static final String NAME_EDEFAULT = null;
/**
* @generated This field/method will be replaced during code generation.
*/
protected String name = NAME_EDEFAULT;
/**
* @generated This field/method will be replaced during code generation.
*/
protected EList relationshipRoles = null;
/**
* The cached value of the '{@link #getDescriptions() <em>Descriptions</em>}' containment reference list.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getDescriptions()
* @generated
* @ordered
*/
protected EList descriptions = null;
public EJBRelationImpl() {
super();
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
protected EClass eStaticClass() {
return EjbPackage.Literals.EJB_RELATION;
}
public boolean containsRelationshipRole(EJBRelationshipRole aRole) {
return getRelationshipRoles().contains(aRole);
}
/**
* Return the roles.
*/
public EList getCommonRoles() {
return getRelationshipRoles();
}
/**
* Return the first role.
*/
public CommonRelationshipRole getFirstCommonRole() {
return getFirstRole();
}
/**
* Return the first role.
*/
public EJBRelationshipRole getFirstRole() {
List list = getRelationshipRoles();
if (list.size() == 0)
return null;
return (EJBRelationshipRole) list.get(0);
}
/**
* Return the other role.
*/
public EJBRelationshipRole getOppositeRole(EJBRelationshipRole aRole) {
if (aRole != null) {
if (aRole == getFirstRole())
return getSecondRole();
if (aRole == getSecondRole())
return getFirstRole();
}
return null;
}
/**
* Return the first role.
*/
public CommonRelationshipRole getSecondCommonRole() {
return getSecondRole();
}
/**
* Return the second role.
*/
public EJBRelationshipRole getSecondRole() {
List list = getRelationshipRoles();
if (list.size() < 2)
return null;
return (EJBRelationshipRole) list.get(1);
}
/**
* Set the forward role. Implemented by ensuring that the passed role is the first role
* which is the "tiebreaker" in case of unclear relationships, such as 1:1.
*/
public void setFoward(EJBRelationshipRole aRole) {
EList roles = getRelationshipRoles();
int currentIndex = roles.indexOf(aRole);
if (currentIndex != 0) {
if (currentIndex > -1)
roles.move(0, aRole);
else
roles.set(0, aRole);
}
}
/**
* @generated This field/method will be replaced during code generation
* The description is used by the ejb-jar file producer to provide text describing the ejb relation.
*
* The description should include any information that the ejb-jar file producer wants to provide to the consumer of the ejb-jar file (i.e. to the Deployer). Typically, the tools used by the ejb-jar file consumer will display the description when processing the list of dependents.
*/
public String getDescription() {
return description;
}
/**
* @generated This field/method will be replaced during code generation.
*/
public void setDescription(String newDescription) {
String oldDescription = description;
description = newDescription;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, EjbPackage.EJB_RELATION__DESCRIPTION, oldDescription, description));
}
/**
* @generated This field/method will be replaced during code generation
* The name of the relationship. If specified, must be unique within the ejb-jar file.
* @invariant self.name unique within Set<collect(ejbJar.ejbRelations.name)>
*/
public String getName() {
return name;
}
/**
* @generated This field/method will be replaced during code generation.
*/
public void setName(String newName) {
String oldName = name;
name = newName;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, EjbPackage.EJB_RELATION__NAME, oldName, name));
}
/**
* @generated This field/method will be replaced during code generation
*/
public Relationships getRelationshipList() {
if (eContainerFeatureID != EjbPackage.EJB_RELATION__RELATIONSHIP_LIST) return null;
return (Relationships)eContainer();
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetRelationshipList(Relationships newRelationshipList, NotificationChain msgs) {
msgs = eBasicSetContainer((InternalEObject)newRelationshipList, EjbPackage.EJB_RELATION__RELATIONSHIP_LIST, msgs);
return msgs;
}
/**
* @generated This field/method will be replaced during code generation.
*/
public void setRelationshipList(Relationships newRelationshipList) {
if (newRelationshipList != eInternalContainer() || (eContainerFeatureID != EjbPackage.EJB_RELATION__RELATIONSHIP_LIST && newRelationshipList != null)) {
if (EcoreUtil.isAncestor(this, newRelationshipList))
throw new IllegalArgumentException("Recursive containment not allowed for " + toString()); //$NON-NLS-1$
NotificationChain msgs = null;
if (eInternalContainer() != null)
msgs = eBasicRemoveFromContainer(msgs);
if (newRelationshipList != null)
msgs = ((InternalEObject)newRelationshipList).eInverseAdd(this, EjbPackage.RELATIONSHIPS__EJB_RELATIONS, Relationships.class, msgs);
msgs = basicSetRelationshipList(newRelationshipList, msgs);
if (msgs != null) msgs.dispatch();
}
else if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, EjbPackage.EJB_RELATION__RELATIONSHIP_LIST, newRelationshipList, newRelationshipList));
}
/**
* @generated This field/method will be replaced during code generation
* A collection containing exactly two relationship roles.
*
* @migration EJB1.1 Containment used to be by reference on relation--now by value.
*/
public EList getRelationshipRoles() {
if (relationshipRoles == null) {
relationshipRoles = new EObjectContainmentWithInverseEList(EJBRelationshipRole.class, this, EjbPackage.EJB_RELATION__RELATIONSHIP_ROLES, EjbPackage.EJB_RELATIONSHIP_ROLE__RELATIONSHIP);
}
return relationshipRoles;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public EList getDescriptions() {
if (descriptions == null) {
descriptions = new EObjectContainmentEList(Description.class, this, EjbPackage.EJB_RELATION__DESCRIPTIONS);
}
return descriptions;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public NotificationChain eInverseAdd(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
switch (featureID) {
case EjbPackage.EJB_RELATION__RELATIONSHIP_LIST:
if (eInternalContainer() != null)
msgs = eBasicRemoveFromContainer(msgs);
return basicSetRelationshipList((Relationships)otherEnd, msgs);
case EjbPackage.EJB_RELATION__RELATIONSHIP_ROLES:
return ((InternalEList)getRelationshipRoles()).basicAdd(otherEnd, msgs);
}
return super.eInverseAdd(otherEnd, featureID, msgs);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
switch (featureID) {
case EjbPackage.EJB_RELATION__RELATIONSHIP_LIST:
return basicSetRelationshipList(null, msgs);
case EjbPackage.EJB_RELATION__RELATIONSHIP_ROLES:
return ((InternalEList)getRelationshipRoles()).basicRemove(otherEnd, msgs);
case EjbPackage.EJB_RELATION__DESCRIPTIONS:
return ((InternalEList)getDescriptions()).basicRemove(otherEnd, msgs);
}
return super.eInverseRemove(otherEnd, featureID, msgs);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public NotificationChain eBasicRemoveFromContainerFeature(NotificationChain msgs) {
switch (eContainerFeatureID) {
case EjbPackage.EJB_RELATION__RELATIONSHIP_LIST:
return eInternalContainer().eInverseRemove(this, EjbPackage.RELATIONSHIPS__EJB_RELATIONS, Relationships.class, msgs);
}
return super.eBasicRemoveFromContainerFeature(msgs);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public Object eGet(int featureID, boolean resolve, boolean coreType) {
switch (featureID) {
case EjbPackage.EJB_RELATION__DESCRIPTION:
return getDescription();
case EjbPackage.EJB_RELATION__NAME:
return getName();
case EjbPackage.EJB_RELATION__RELATIONSHIP_LIST:
return getRelationshipList();
case EjbPackage.EJB_RELATION__RELATIONSHIP_ROLES:
return getRelationshipRoles();
case EjbPackage.EJB_RELATION__DESCRIPTIONS:
return getDescriptions();
}
return super.eGet(featureID, resolve, coreType);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public void eSet(int featureID, Object newValue) {
switch (featureID) {
case EjbPackage.EJB_RELATION__DESCRIPTION:
setDescription((String)newValue);
return;
case EjbPackage.EJB_RELATION__NAME:
setName((String)newValue);
return;
case EjbPackage.EJB_RELATION__RELATIONSHIP_LIST:
setRelationshipList((Relationships)newValue);
return;
case EjbPackage.EJB_RELATION__RELATIONSHIP_ROLES:
getRelationshipRoles().clear();
getRelationshipRoles().addAll((Collection)newValue);
return;
case EjbPackage.EJB_RELATION__DESCRIPTIONS:
getDescriptions().clear();
getDescriptions().addAll((Collection)newValue);
return;
}
super.eSet(featureID, newValue);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public void eUnset(int featureID) {
switch (featureID) {
case EjbPackage.EJB_RELATION__DESCRIPTION:
setDescription(DESCRIPTION_EDEFAULT);
return;
case EjbPackage.EJB_RELATION__NAME:
setName(NAME_EDEFAULT);
return;
case EjbPackage.EJB_RELATION__RELATIONSHIP_LIST:
setRelationshipList((Relationships)null);
return;
case EjbPackage.EJB_RELATION__RELATIONSHIP_ROLES:
getRelationshipRoles().clear();
return;
case EjbPackage.EJB_RELATION__DESCRIPTIONS:
getDescriptions().clear();
return;
}
super.eUnset(featureID);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public boolean eIsSet(int featureID) {
switch (featureID) {
case EjbPackage.EJB_RELATION__DESCRIPTION:
return DESCRIPTION_EDEFAULT == null ? description != null : !DESCRIPTION_EDEFAULT.equals(description);
case EjbPackage.EJB_RELATION__NAME:
return NAME_EDEFAULT == null ? name != null : !NAME_EDEFAULT.equals(name);
case EjbPackage.EJB_RELATION__RELATIONSHIP_LIST:
return getRelationshipList() != null;
case EjbPackage.EJB_RELATION__RELATIONSHIP_ROLES:
return relationshipRoles != null && !relationshipRoles.isEmpty();
case EjbPackage.EJB_RELATION__DESCRIPTIONS:
return descriptions != null && !descriptions.isEmpty();
}
return super.eIsSet(featureID);
}
/**
* @generated This field/method will be replaced during code generation.
*/
@Override
public String toString() {
if (eIsProxy()) return super.toString();
StringBuffer result = new StringBuffer(super.toString());
result.append(" (description: "); //$NON-NLS-1$
result.append(description);
result.append(", name: "); //$NON-NLS-1$
result.append(name);
result.append(')');
return result.toString();
}
public EJBRelationshipRole getRelationshipRole(String aRoleName) {
if (aRoleName == null) return null;
List roles = getRelationshipRoles();
EJBRelationshipRole role = null;
for (int i = 0; i < roles.size(); i++) {
role = (EJBRelationshipRole) roles.get(i);
if (aRoleName.equals(role.getName()))
return role;
}
return null;
}
}