Java tutorial
/******************************************************************************* * Copyright 2016 The MITRE Corporation * and the MIT Internet Trust Consortium * * 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.mitre.oauth2.repository.impl; import java.util.List; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; import javax.persistence.TypedQuery; import org.mitre.oauth2.model.AuthenticationHolderEntity; import org.mitre.oauth2.repository.AuthenticationHolderRepository; import org.mitre.util.jpa.JpaUtil; import org.springframework.stereotype.Repository; import org.springframework.transaction.annotation.Transactional; @Repository @Transactional(value = "defaultTransactionManager") public class JpaAuthenticationHolderRepository implements AuthenticationHolderRepository { private static final int MAXEXPIREDRESULTS = 1000; @PersistenceContext(unitName = "defaultPersistenceUnit") private EntityManager manager; @Override public List<AuthenticationHolderEntity> getAll() { TypedQuery<AuthenticationHolderEntity> query = manager .createNamedQuery(AuthenticationHolderEntity.QUERY_ALL, AuthenticationHolderEntity.class); return query.getResultList(); } @Override public AuthenticationHolderEntity getById(Long id) { return manager.find(AuthenticationHolderEntity.class, id); } @Override @Transactional(value = "defaultTransactionManager") public void remove(AuthenticationHolderEntity a) { AuthenticationHolderEntity found = getById(a.getId()); if (found != null) { manager.remove(found); } else { throw new IllegalArgumentException("AuthenticationHolderEntity not found: " + a); } } @Override @Transactional(value = "defaultTransactionManager") public AuthenticationHolderEntity save(AuthenticationHolderEntity a) { return JpaUtil.saveOrUpdate(a.getId(), manager, a); } @Override @Transactional(value = "defaultTransactionManager") public List<AuthenticationHolderEntity> getOrphanedAuthenticationHolders() { TypedQuery<AuthenticationHolderEntity> query = manager .createNamedQuery(AuthenticationHolderEntity.QUERY_GET_UNUSED, AuthenticationHolderEntity.class); query.setMaxResults(MAXEXPIREDRESULTS); List<AuthenticationHolderEntity> unusedAuthenticationHolders = query.getResultList(); return unusedAuthenticationHolders; } }