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/**
* <copyright>
*
* Copyright (c) 2005, 2006 Springsite BV (The Netherlands) 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:
* Martin Taal
* </copyright>
*
* $Id: Relation1tonAction.java,v 1.2 2006/07/22 10:16:32 mtaal Exp $
*/
package org.eclipse.emf.teneo.test.emf.relation;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.teneo.samples.emf.relation.relation1ton.Main;
import org.eclipse.emf.teneo.samples.emf.relation.relation1ton.OneCN;
import org.eclipse.emf.teneo.samples.emf.relation.relation1ton.OneCR;
import org.eclipse.emf.teneo.samples.emf.relation.relation1ton.OneNN;
import org.eclipse.emf.teneo.samples.emf.relation.relation1ton.OneNR;
import org.eclipse.emf.teneo.samples.emf.relation.relation1ton.Relation1tonFactory;
import org.eclipse.emf.teneo.samples.emf.relation.relation1ton.Relation1tonPackage;
import org.eclipse.emf.teneo.samples.emf.relation.relation1ton.TwoCN;
import org.eclipse.emf.teneo.samples.emf.relation.relation1ton.TwoCR;
import org.eclipse.emf.teneo.samples.emf.relation.relation1ton.TwoNN;
import org.eclipse.emf.teneo.samples.emf.relation.relation1ton.TwoNR;
import org.eclipse.emf.teneo.samples.emf.relation.relation1ton.impl.MainImpl;
import org.eclipse.emf.teneo.test.AbstractTestAction;
import org.eclipse.emf.teneo.test.stores.TestStore;
/**
* Tests many different kinds of 1:n relations
*
* @author <a href="mailto:mtaal@elver.org">Martin Taal</a>
* @version $Revision: 1.2 $
*/
public class Relation1tonAction extends AbstractTestAction {
/** value used to create multiple entries in a list */
private static final int ELEM_CNT = 10;
/**
* Constructor
*
* @param arg0
*/
public Relation1tonAction() {
super(Relation1tonPackage.eINSTANCE);
}
/** Tests cascading deletes, required relations, etc. for 1:1 relations */
public void doAction(TestStore store) {
// are not able to generate correct foreign key constraints in the generated sql, therefor this does
// not work.
final Relation1tonFactory factory = Relation1tonFactory.eINSTANCE;
{
store.beginTransaction();
Main main = factory.createMain();
main.setName("main");
OneCR oneCr1 = factory.createOneCR();
oneCr1.setName("onecr1");
main.getOnecr().add(oneCr1);
OneCR oneCr2 = factory.createOneCR();
oneCr2.setName("onecr2");
main.getOnecr().add(oneCr2);
OneCN oneCn1 = factory.createOneCN();
oneCn1.setName("onecn1");
main.getOnecn().add(oneCn1);
OneCN oneCn2 = factory.createOneCN();
oneCn2.setName("onecn2");
main.getOnecn().add(oneCn2);
OneNN oneNn1 = factory.createOneNN();
oneNn1.setName("onenn1");
main.getOnenn().add(oneNn1);
OneNN oneNn2 = factory.createOneNN();
oneNn2.setName("onenn2");
main.getOnenn().add(oneNn2);
OneNR oneNr1 = factory.createOneNR();
oneNr1.setName("onenr1");
main.getOnenr().add(oneNr1);
OneNR oneNr2 = factory.createOneNR();
oneNr2.setName("onenr2");
main.getOnenr().add(oneNr2);
TwoCR twoCr1 = factory.createTwoCR();
twoCr1.setName("twocr1");
main.getTwocr().add(twoCr1);
TwoCR twoCr2 = factory.createTwoCR();
twoCr2.setName("twocr2");
main.getTwocr().add(twoCr2);
for (int i = 0; i < ELEM_CNT; i++) {
TwoCN twoCn = factory.createTwoCN();
twoCn.setName("twocn" + i);
main.getTwocn().add(twoCn);
}
for (int i = 0; i < ELEM_CNT; i++) {
TwoNN twoNn = factory.createTwoNN();
twoNn.setName("twonn" + i);
main.getTwonn().add(twoNn);
}
TwoNR twoNr1 = factory.createTwoNR();
twoNr1.setName("twonr1");
main.getTwonr().add(twoNr1);
TwoNR twoNr2 = factory.createTwoNR();
twoNr2.setName("twonr2");
main.getTwonr().add(twoNr2);
store.store(main);
store.commitTransaction();
}
// check that the main object can not be deleted
{
// this test fails for hibernate because hibernate apparently does not support
// foreign key constraints checking when removing a parent. Apparently foreign keys
// are always nulled out. Imo this is incorrect for two way relations.
// store.checkDeleteFails(Main.class);
}
// <element name="containedonewayrequired" type="this:ContainedChildR"/>
// 1) we should check here that this child can not be deleted separately
{
// childs of 1:n relations can be deleted directly!
// check 1
// store.checkDeleteFails(OneNR.class);
}
// <element name="containedoneWaynotrequired" type="this:ContainedChildNR" minOccurs="0"/>
// 3) Direct delete of the child should not be possible as the parent points to it
// 4) if the main object is deleted then this child should also be deleted automatically
// ContainedChildNR containedChildNR = factory.createContainedChildNR();
{
// childs in 1:n relations can be deleted directly!
// check 3
// store.checkDeleteFails(OneNR.class);
// restore again
store.beginTransaction();
MainImpl main = (MainImpl) store.getObject(Main.class);
// check the econtainer
assertEquals(2, main.getOnecr().size());
assertEquals(2, main.getOnecn().size());
assertEquals(2, main.getOnenr().size());
assertEquals(2, main.getOnenn().size());
assertEquals(2, main.getTwocr().size());
assertEquals(ELEM_CNT, main.getTwocn().size());
assertEquals(2, main.getTwonr().size());
assertEquals(ELEM_CNT, main.getTwonn().size());
assertTrue("EContainer is not null", ((EObject) main.getOnecn().get(0)).eContainer() != null);
assertTrue("EContainer is not null", ((EObject) main.getOnecr().get(1)).eContainer() != null);
assertTrue("EContainer is null", ((EObject) main.getTwonn().get(1)).eContainer() == null);
assertTrue("EContainer is null", ((EObject) main.getTwonr().get(1)).eContainer() == null);
OneCR onecr = factory.createOneCR();
onecr.setName("onecr3");
main.getOnecr().add(onecr);
main.getOnecr().remove(0);
store.commitTransaction();
// should be two now (no cascading delete yet!)
store.beginTransaction();
store.checkNumber(OneCR.class, 2);
store.commitTransaction();
}
// <element name="notcontainedonewayrequired" type="xsd:IDREF" ecore:reference="this:NotContainedChildR"/>
// 6b) Element has to be set when parent is saved
{
// check 6
// childs in 1:n relations can be deleted if there is no join table!
// store.checkDeleteFails(OneNR.class);
}
// <element name="notcontainedtwowaynotrequired" type="xsd:IDREF" ecore:reference="this:NotContainedChildNRT" minOccurs="0"
// ecore:opposite="main"/>
// NotContainedChildNRT notContainedChildNRT = factory.createNotContainedChildNRT();
// 11) The main object can not be deleted without removing the ref to the child
// 12) Reference to child can be set to nullable and child/main object can be deleted
{
store.beginTransaction();
// check 11 and 12
MainImpl main = (MainImpl) store.getObject(Main.class);
OneCN delChild = (OneCN) main.getOnecn().get(0);
main.getOnecn().remove(0);
assertTrue(((EObject) main.getTwocr().get(0)).eContainer() == main);
assertTrue(((TwoCR) main.getTwocr().get(0)).getMain() == main);
store.deleteObject(delChild);
store.commitTransaction();
}
// <element name="notcontainedtwowaynotrequirednr" type="xsd:IDREF" ecore:reference="this:NotContainedChildNRTNR" minOccurs="0"
// ecore:opposite="main"/>
// NotContainedChildNRTNR notContainedChildNRTNR = factory.createNotContainedChildNRTNR();
// 15) the child object can be deleted because all references are null
// 16) The child object can be unset from the main object
{
// check 14
store.beginTransaction();
MainImpl main = (MainImpl) store.getObject(Main.class);
OneNN child = (OneNN) main.getOnenn().get(0);
main.getOnenn().remove(0);
store.deleteObject(child);
store.commitTransaction();
}
// and do some counts
{
store.beginTransaction();
store.checkNumber(OneCN.class, 1); // 0
store.checkNumber(OneCR.class, 2); // 0
store.checkNumber(OneNN.class, 1);
store.checkNumber(OneNR.class, 2);
store.checkNumber(TwoCR.class, 2); // 0
store.checkNumber(TwoCN.class, ELEM_CNT); // 0
store.checkNumber(TwoNR.class, 2);
store.checkNumber(TwoNN.class, ELEM_CNT);
store.commitTransaction();
}
// now make the main object deletable!
{
store.beginTransaction();
MainImpl main = (MainImpl) store.getObject(Main.class);
main.getOnenn().clear();
main.getOnenr().clear();
main.getTwonn().clear();
main.getTwonr().clear();
store.deleteObject(main);
store.commitTransaction();
}
// and do some counts
{
store.beginTransaction();
store.checkNumber(OneCN.class, 0);
store.checkNumber(OneCR.class, 0);
store.checkNumber(OneNN.class, 1);
store.checkNumber(OneNR.class, 2);
store.checkNumber(TwoCR.class, 0);
store.checkNumber(TwoCN.class, 0);
store.checkNumber(TwoNR.class, 2);
store.checkNumber(TwoNN.class, ELEM_CNT);
store.commitTransaction();
}
}
}
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