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MongoDB support for Spring Data
/*
* Copyright 2011-2014 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 org.springframework.data.mongodb.core.mapping;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Field;
import java.util.AbstractMap;
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.FieldNamingStrategy;
import org.springframework.data.mapping.model.PropertyNameFieldNamingStrategy;
import org.springframework.data.mapping.model.SimpleTypeHolder;
import org.springframework.data.util.TypeInformation;
/**
* Default implementation of a {@link MappingContext} for MongoDB using {@link BasicMongoPersistentEntity} and
* {@link BasicMongoPersistentProperty} as primary abstractions.
*
* @author Jon Brisbin
* @author Oliver Gierke
*/
public class MongoMappingContext extends AbstractMappingContext, MongoPersistentProperty>
implements ApplicationContextAware {
private static final FieldNamingStrategy DEFAULT_NAMING_STRATEGY = PropertyNameFieldNamingStrategy.INSTANCE;
private FieldNamingStrategy fieldNamingStrategy = DEFAULT_NAMING_STRATEGY;
private ApplicationContext context;
/**
* Creates a new {@link MongoMappingContext}.
*/
public MongoMappingContext() {
setSimpleTypeHolder(MongoSimpleTypes.HOLDER);
}
/**
* Configures the {@link FieldNamingStrategy} to be used to determine the field name if no manual mapping is applied.
* Defaults to a strategy using the plain property name.
*
* @param fieldNamingStrategy the {@link FieldNamingStrategy} to be used to determine the field name if no manual
* mapping is applied.
*/
public void setFieldNamingStrategy(FieldNamingStrategy fieldNamingStrategy) {
this.fieldNamingStrategy = fieldNamingStrategy == null ? DEFAULT_NAMING_STRATEGY : fieldNamingStrategy;
}
/*
* (non-Javadoc)
* @see org.springframework.data.mapping.context.AbstractMappingContext#shouldCreatePersistentEntityFor(org.springframework.data.util.TypeInformation)
*/
@Override
protected boolean shouldCreatePersistentEntityFor(TypeInformation type) {
return !MongoSimpleTypes.HOLDER.isSimpleType(type.getType()) && !AbstractMap.class.isAssignableFrom(type.getType());
}
/*
* (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 MongoPersistentProperty createPersistentProperty(Field field, PropertyDescriptor descriptor,
BasicMongoPersistentEntity owner, SimpleTypeHolder simpleTypeHolder) {
return new CachingMongoPersistentProperty(field, descriptor, owner, simpleTypeHolder, fieldNamingStrategy);
}
/*
* (non-Javadoc)
* @see org.springframework.data.mapping.BasicMappingContext#createPersistentEntity(org.springframework.data.util.TypeInformation, org.springframework.data.mapping.model.MappingContext)
*/
@Override
protected BasicMongoPersistentEntity createPersistentEntity(TypeInformation typeInformation) {
BasicMongoPersistentEntity entity = new BasicMongoPersistentEntity(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;
}
}