com.cedarsoft.gdao.GenericServiceImpl Maven / Gradle / Ivy
/**
* Copyright (C) cedarsoft GmbH.
*
* Licensed under the GNU General Public License version 3 (the "License")
* with Classpath Exception; you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.cedarsoft.org/gpl3ce
* (GPL 3 with Classpath Exception)
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3 only, as
* published by the Free Software Foundation. cedarsoft GmbH designates this
* particular file as subject to the "Classpath" exception as provided
* by cedarsoft GmbH in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 3 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 3 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact cedarsoft GmbH, 72810 Gomaringen, Germany,
* or visit www.cedarsoft.com if you need additional information or
* have any questions.
*/
package com.cedarsoft.gdao;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.support.AbstractPlatformTransactionManager;
import org.springframework.transaction.support.TransactionCallback;
import java.lang.Override;
/**
* A generic service that can be used generally.
*/
public class GenericServiceImpl extends AbstractService implements GenericService {
/**
* Creates a new Generic service implementation
*
* @param dao the dao
* @param transactionManager the transaction manager
*/
public GenericServiceImpl( @NotNull GenericDao dao, @NotNull AbstractPlatformTransactionManager transactionManager ) {
super( dao, transactionManager );
}
/**
* Calls the given callback within an transaction.
*
* @param callback the callback
* @return the return value (optional)
*/
@Override
@Nullable
public R perform( @NotNull final GenericService.ServiceCallback callback ) {
Object o = transactionTemplate.execute( new TransactionCallback() {
@Override
@Nullable
public Object doInTransaction( TransactionStatus status ) {
return callback.perform( GenericServiceImpl.this );
}
} );
return ( R ) o;
}
}