Java tutorial
/** * Copyright (c) 2014 Eclectic Logic LLC * * 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 com.eclecticlogic.pedal.impl; import java.util.HashMap; import java.util.Map; import org.springframework.transaction.support.TransactionSynchronization; import org.springframework.transaction.support.TransactionSynchronizationAdapter; import org.springframework.transaction.support.TransactionSynchronizationManager; import com.eclecticlogic.pedal.DataContext; /** * @author karthik abram */ public class TransactionSynchronizationAdapterData extends TransactionSynchronizationAdapter implements DataContext { private Map<Object, Object> data = new HashMap<>(); static TransactionSynchronizationAdapterData instance() { for (TransactionSynchronization sync : TransactionSynchronizationManager.getSynchronizations()) { if (sync instanceof TransactionSynchronizationAdapterData) { return (TransactionSynchronizationAdapterData) sync; } } return null; } @Override public void put(Object key, Object value) { data.put(key, value); } @Override @SuppressWarnings("unchecked") public <T> T get(Object key) { return (T) data.get(key); } @Override public void afterCompletion(int status) { data.clear(); } }