/*
* Copyright (c) 2008, Rickard Öberg. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.qi4j.runtime.entity.associations;
import org.junit.Test;
import org.qi4j.api.association.Association;
import org.qi4j.api.association.ManyAssociation;
import org.qi4j.api.common.Optional;
import org.qi4j.api.entity.EntityBuilder;
import org.qi4j.api.entity.EntityComposite;
import org.qi4j.api.property.Immutable;
import org.qi4j.api.unitofwork.UnitOfWork;
import org.qi4j.bootstrap.AssemblyException;
import org.qi4j.bootstrap.ModuleAssembly;
import org.qi4j.entitystore.memory.MemoryEntityStoreService;
import org.qi4j.spi.uuid.UuidIdentityGeneratorService;
import org.qi4j.test.AbstractQi4jTest;
/**
* Test that associations can be marked as @Immutable
*/
public class ImmutableAssociationTest
extends AbstractQi4jTest
{
public void assemble( ModuleAssembly module )
throws AssemblyException
{
module.services( MemoryEntityStoreService.class, UuidIdentityGeneratorService.class );
module.entities( PersonEntity.class );
}
@Test
public void givenEntityWithImmutableAssociationWhenBuildingThenNoException()
throws Exception
{
UnitOfWork unitOfWork = module.newUnitOfWork();
try
{
PersonEntity father = unitOfWork.newEntity( PersonEntity.class );
EntityBuilder<PersonEntity> builder = unitOfWork.newEntityBuilder( PersonEntity.class );
PersonEntity instance = builder.instance();
instance.father().set( father );
PersonEntity child = builder.newInstance();
}
finally
{
unitOfWork.discard();
}
}
@Test( expected = IllegalStateException.class )
public void givenEntityWithImmutableAssociationWhenChangingValueThenThrowException()
throws Exception
{
UnitOfWork unitOfWork = module.newUnitOfWork();
try
{
EntityBuilder<PersonEntity> builder = unitOfWork.newEntityBuilder( PersonEntity.class );
PersonEntity father = builder.instance();
father = builder.newInstance();
builder = unitOfWork.newEntityBuilder( PersonEntity.class );
PersonEntity child = builder.instance();
child = builder.newInstance();
child.father().set( father );
unitOfWork.complete();
}
finally
{
unitOfWork.discard();
}
}
@Test
public void givenEntityWithImmutableManyAssociationWhenBuildingThenNoException()
throws Exception
{
UnitOfWork unitOfWork = module.newUnitOfWork();
try
{
EntityBuilder<PersonEntity> builder = unitOfWork.newEntityBuilder( PersonEntity.class );
PersonEntity person1 = builder.instance();
person1 = builder.newInstance();
builder = unitOfWork.newEntityBuilder( PersonEntity.class );
PersonEntity person2 = builder.instance();
person2.colleagues().add( 0, person1 );
person2 = builder.newInstance();
}
finally
{
unitOfWork.discard();
}
}
@Test( expected = IllegalStateException.class )
public void givenEntityWithImmutableManyAssociationWhenChangingValueThenThrowException()
throws Exception
{
UnitOfWork unitOfWork = module.newUnitOfWork();
try
{
EntityBuilder<PersonEntity> builder = unitOfWork.newEntityBuilder( PersonEntity.class );
PersonEntity person1 = builder.instance();
person1 = builder.newInstance();
builder = unitOfWork.newEntityBuilder( PersonEntity.class );
PersonEntity person2 = builder.instance();
person2 = builder.newInstance();
person1.colleagues().add( 0, person2 );
unitOfWork.complete();
}
finally
{
unitOfWork.discard();
}
}
interface PersonEntity
extends EntityComposite
{
@Optional
@Immutable
Association<PersonEntity> father();
@Immutable
ManyAssociation<PersonEntity> children();
@Immutable
ManyAssociation<PersonEntity> friends();
@Immutable
ManyAssociation<PersonEntity> colleagues();
}
}