DynamoDBIdIsHashAndRangeKeyEntityInformationImpl.java

/*
 * 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 org.socialsignin.spring.data.dynamodb.repository.support;

import java.io.Serializable;
import java.util.Map;
import java.util.Set;

import org.springframework.data.annotation.Id;
import org.springframework.data.repository.core.support.ReflectionEntityInformation;

import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMarshaller;

/**
 * Encapsulates minimal information needed to load DynamoDB entities that have
 * both hash and range key, and have a composite id attribute annotated with
 * {@link Id}.
 *
 * Delegates to metadata and hashKeyExtractor components for all operations.
 *
 * @author Michael Lavelle
 */
public class DynamoDBIdIsHashAndRangeKeyEntityInformationImpl<T, ID extends Serializable> extends
		ReflectionEntityInformation<T, ID> implements DynamoDBIdIsHashAndRangeKeyEntityInformation<T, ID> {

	private DynamoDBHashAndRangeKeyExtractingEntityMetadata<T, ID> metadata;
	private HashAndRangeKeyExtractor<ID, ?> hashAndRangeKeyExtractor;

	public DynamoDBIdIsHashAndRangeKeyEntityInformationImpl(Class<T> domainClass,
			DynamoDBHashAndRangeKeyExtractingEntityMetadata<T, ID> metadata) {
		super(domainClass, Id.class);
		this.metadata = metadata;
		this.hashAndRangeKeyExtractor = metadata.getHashAndRangeKeyExtractor(getIdType());
	}

	@Override
	public boolean isRangeKeyAware() {
		return true;
	}

	@Override
	public Object getHashKey(final ID id) {
		return hashAndRangeKeyExtractor.getHashKey(id);
	}

	@Override
	public Object getRangeKey(final ID id) {
		return hashAndRangeKeyExtractor.getRangeKey(id);
	}

	@Override
	public String getOverriddenAttributeName(String attributeName) {
		return metadata.getOverriddenAttributeName(attributeName);
	}

	@Override
	public boolean isHashKeyProperty(String propertyName) {
		return metadata.isHashKeyProperty(propertyName);
	}

	@Override
	public boolean isCompositeHashAndRangeKeyProperty(String propertyName) {
		return metadata.isCompositeHashAndRangeKeyProperty(propertyName);
	}

	@Override
	public String getRangeKeyPropertyName() {
		return metadata.getRangeKeyPropertyName();
	}

	@Override
	public DynamoDBMarshaller<?> getMarshallerForProperty(String propertyName) {
		return metadata.getMarshallerForProperty(propertyName);
	}

	@Override
	public Set<String> getIndexRangeKeyPropertyNames() {
		return metadata.getIndexRangeKeyPropertyNames();
	}

	@Override
	public String getHashKeyPropertyName() {
		return metadata.getHashKeyPropertyName();
	}

	@Override
	public <H> HashAndRangeKeyExtractor<ID, H> getHashAndRangeKeyExtractor(Class<ID> idClass) {
		return metadata.getHashAndRangeKeyExtractor(idClass);
	}

	@Override
	public String getDynamoDBTableName() {
		return metadata.getDynamoDBTableName();
	}

	@Override
	public Map<String, String[]> getGlobalSecondaryIndexNamesByPropertyName() {
		return metadata.getGlobalSecondaryIndexNamesByPropertyName();
	}

	@Override
	public <H> T getHashKeyPropotypeEntityForHashKey(H hashKey) {
		return metadata.getHashKeyPropotypeEntityForHashKey(hashKey);
	}

	@Override
	public boolean isGlobalIndexHashKeyProperty(String propertyName) {
		return metadata.isGlobalIndexHashKeyProperty(propertyName);
	}

	@Override
	public boolean isGlobalIndexRangeKeyProperty(String propertyName) {
		return metadata.isGlobalIndexRangeKeyProperty(propertyName);
	}

}