Java tutorial
/* * Copyright 2013 the original author or authors. * * 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 nivance.jpa.cassandra.prepare.mapping; import java.beans.PropertyDescriptor; import java.lang.reflect.Field; import org.springframework.beans.BeansException; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import org.springframework.data.mapping.context.AbstractMappingContext; import org.springframework.data.mapping.context.MappingContext; import org.springframework.data.mapping.model.SimpleTypeHolder; import org.springframework.data.util.TypeInformation; /** * Default implementation of a {@link MappingContext} for Cassandra using {@link BasicCassandraPersistentEntity} and * {@link BasicCassandraPersistentProperty} as primary abstractions. * * @author Alex Shvid */ public class CassandraMappingContext extends AbstractMappingContext<BasicCassandraPersistentEntity<?>, CassandraPersistentProperty> implements ApplicationContextAware { private ApplicationContext context; /** * Creates a new {@link CassandraMappingContext}. */ public CassandraMappingContext() { setSimpleTypeHolder(CassandraSimpleTypes.HOLDER); } /* * (non-Javadoc) * @see org.springframework.data.mapping.AbstractMappingContext#createPersistentProperty(java.lang.reflect.Field, java.beans.PropertyDescriptor, org.springframework.data.mapping.MutablePersistentEntity, org.springframework.data.mapping.SimpleTypeHolder) */ @Override public CassandraPersistentProperty createPersistentProperty(Field field, PropertyDescriptor descriptor, BasicCassandraPersistentEntity<?> owner, SimpleTypeHolder simpleTypeHolder) { return new CachingCassandraPersistentProperty(field, descriptor, owner, simpleTypeHolder); } /* * (non-Javadoc) * @see org.springframework.data.mapping.BasicMappingContext#createPersistentEntity(org.springframework.data.util.TypeInformation, org.springframework.data.mapping.model.MappingContext) */ @Override protected <T> BasicCassandraPersistentEntity<T> createPersistentEntity(TypeInformation<T> typeInformation) { BasicCassandraPersistentEntity<T> entity = new BasicCassandraPersistentEntity<T>(typeInformation); if (context != null) { entity.setApplicationContext(context); } return entity; } /* * (non-Javadoc) * @see org.springframework.context.ApplicationContextAware#setApplicationContext(org.springframework.context.ApplicationContext) */ @Override public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { this.context = applicationContext; } }