001    // Copyright 2008, 2009 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry5.hibernate;
016    
017    /**
018     * Service that can create an interceptor that wraps around a service implementation. After invoking service methods
019     * marked by {@link org.apache.tapestry5.hibernate.annotations.CommitAfter} the current transaction is committed.
020     * Declared exceptions will also {@linkplain org.apache.tapestry5.hibernate.HibernateSessionManager#commit() commit the
021     * transaction}; runtime exceptions will {@linkplain org.apache.tapestry5.hibernate.HibernateSessionManager#abort() the
022     * transaction}.
023     * <p/>
024     * It is recommended that you switch from the use of decoration to the use of advice; use the {@link
025     * org.apache.tapestry5.hibernate.HibernateTransactionAdvisor} (from a service advisor method) instead.
026     */
027    public interface HibernateTransactionDecorator
028    {
029        /**
030         * Builds a transaction interceptor instance around the delegate.
031         *
032         * @param <T>
033         * @param serviceInterface interface implemented by the delegate
034         * @param delegate         existing object to be wrapped
035         * @param serviceId        id of service
036         * @return a new object implementing the interface that can be used in place of the delegate, providing
037         *         transactional behavior
038         */
039        <T> T build(Class<T> serviceInterface, T delegate, String serviceId);
040    }