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org.springframework.data.cassandra.core.CassandraTemplate Maven / Gradle / Ivy

/*
 * Copyright 2016-2020 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
 *
 *      https://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.cassandra.core;

import lombok.Value;

import java.util.List;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.stream.Stream;
import java.util.stream.StreamSupport;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.ApplicationEventPublisherAware;
import org.springframework.dao.DataAccessException;
import org.springframework.dao.OptimisticLockingFailureException;
import org.springframework.data.cassandra.SessionFactory;
import org.springframework.data.cassandra.core.EntityOperations.AdaptibleEntity;
import org.springframework.data.cassandra.core.convert.CassandraConverter;
import org.springframework.data.cassandra.core.convert.MappingCassandraConverter;
import org.springframework.data.cassandra.core.convert.QueryMapper;
import org.springframework.data.cassandra.core.convert.UpdateMapper;
import org.springframework.data.cassandra.core.cql.CassandraAccessor;
import org.springframework.data.cassandra.core.cql.CqlOperations;
import org.springframework.data.cassandra.core.cql.CqlProvider;
import org.springframework.data.cassandra.core.cql.CqlTemplate;
import org.springframework.data.cassandra.core.cql.QueryOptions;
import org.springframework.data.cassandra.core.cql.SessionCallback;
import org.springframework.data.cassandra.core.cql.WriteOptions;
import org.springframework.data.cassandra.core.cql.session.DefaultSessionFactory;
import org.springframework.data.cassandra.core.cql.util.StatementBuilder;
import org.springframework.data.cassandra.core.mapping.CassandraPersistentEntity;
import org.springframework.data.cassandra.core.mapping.CassandraPersistentProperty;
import org.springframework.data.cassandra.core.mapping.event.AfterConvertEvent;
import org.springframework.data.cassandra.core.mapping.event.AfterDeleteEvent;
import org.springframework.data.cassandra.core.mapping.event.AfterLoadEvent;
import org.springframework.data.cassandra.core.mapping.event.AfterSaveEvent;
import org.springframework.data.cassandra.core.mapping.event.BeforeConvertCallback;
import org.springframework.data.cassandra.core.mapping.event.BeforeDeleteEvent;
import org.springframework.data.cassandra.core.mapping.event.BeforeSaveCallback;
import org.springframework.data.cassandra.core.mapping.event.BeforeSaveEvent;
import org.springframework.data.cassandra.core.mapping.event.CassandraMappingEvent;
import org.springframework.data.cassandra.core.query.Columns;
import org.springframework.data.cassandra.core.query.Query;
import org.springframework.data.domain.Slice;
import org.springframework.data.mapping.callback.EntityCallbacks;
import org.springframework.data.mapping.context.MappingContext;
import org.springframework.data.projection.ProjectionFactory;
import org.springframework.data.projection.SpelAwareProxyProjectionFactory;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;

import com.datastax.oss.driver.api.core.CqlIdentifier;
import com.datastax.oss.driver.api.core.CqlSession;
import com.datastax.oss.driver.api.core.DriverException;
import com.datastax.oss.driver.api.core.config.DefaultDriverOption;
import com.datastax.oss.driver.api.core.cql.ResultSet;
import com.datastax.oss.driver.api.core.cql.Row;
import com.datastax.oss.driver.api.core.cql.SimpleStatement;
import com.datastax.oss.driver.api.core.cql.Statement;
import com.datastax.oss.driver.api.querybuilder.QueryBuilder;
import com.datastax.oss.driver.api.querybuilder.delete.Delete;
import com.datastax.oss.driver.api.querybuilder.insert.Insert;
import com.datastax.oss.driver.api.querybuilder.insert.RegularInsert;
import com.datastax.oss.driver.api.querybuilder.select.Select;
import com.datastax.oss.driver.api.querybuilder.truncate.Truncate;
import com.datastax.oss.driver.api.querybuilder.update.Update;

/**
 * Primary implementation of {@link CassandraOperations}. It simplifies the use of Cassandra usage and helps to avoid
 * common errors. It executes core Cassandra workflow. This class executes CQL queries or updates, initiating iteration
 * over {@link ResultSet} and catching Cassandra exceptions and translating them to the generic, more informative
 * exception hierarchy defined in the {@code org.springframework.dao} package.
 * 

 * Can be used within a service implementation via direct instantiation with a {@link CqlSession} reference, or get
 * prepared in an application context and given to services as bean reference.
 * 

 * Note: The {@link CqlSession} should always be configured as a bean in the application context, in the first case
 * given to the service directly, in the second case to the prepared template.
 *
 * @author Mark Paluch
 * @author John Blum
 * @author Lukasz Antoniak
 * @see org.springframework.data.cassandra.core.CassandraOperations
 * @since 2.0
 */
public class CassandraTemplate implements CassandraOperations, ApplicationEventPublisherAware, ApplicationContextAware {

	private @Nullable ApplicationEventPublisher eventPublisher;

	private @Nullable EntityCallbacks entityCallbacks;

	private final CassandraConverter converter;

	private final CqlOperations cqlOperations;

	private final EntityOperations entityOperations;

	private final MappingContext, CassandraPersistentProperty> mappingContext;

	private final SpelAwareProxyProjectionFactory projectionFactory;

	private final StatementFactory statementFactory;

	/**
	 * Creates an instance of {@link CassandraTemplate} initialized with the given {@link CqlSession} and a default
	 * {@link MappingCassandraConverter}.
	 *
	 * @param session {@link CqlSession} used to interact with Cassandra; must not be {@literal null}.
	 * @see CassandraConverter
	 * @see Session
	 */
	public CassandraTemplate(CqlSession session) {
		this(session, newConverter());
	}

	/**
	 * Creates an instance of {@link CassandraTemplate} initialized with the given {@link CqlSession} and
	 * {@link CassandraConverter}.
	 *
	 * @param session {@link CqlSession} used to interact with Cassandra; must not be {@literal null}.
	 * @param converter {@link CassandraConverter} used to convert between Java and Cassandra types; must not be
	 *          {@literal null}.
	 * @see CassandraConverter
	 * @see Session
	 */
	public CassandraTemplate(CqlSession session, CassandraConverter converter) {
		this(new DefaultSessionFactory(session), converter);
	}

	/**
	 * Creates an instance of {@link CassandraTemplate} initialized with the given {@link SessionFactory} and
	 * {@link CassandraConverter}.
	 *
	 * @param sessionFactory {@link SessionFactory} used to interact with Cassandra; must not be {@literal null}.
	 * @param converter {@link CassandraConverter} used to convert between Java and Cassandra types; must not be
	 *          {@literal null}.
	 * @see CassandraConverter
	 * @see SessionFactory
	 */
	public CassandraTemplate(SessionFactory sessionFactory, CassandraConverter converter) {
		this(new CqlTemplate(sessionFactory), converter);
	}

	/**
	 * Creates an instance of {@link CassandraTemplate} initialized with the given {@link CqlOperations} and
	 * {@link CassandraConverter}.
	 *
	 * @param cqlOperations {@link CqlOperations} used to interact with Cassandra; must not be {@literal null}.
	 * @param converter {@link CassandraConverter} used to convert between Java and Cassandra types; must not be
	 *          {@literal null}.
	 * @see CassandraConverter
	 * @see Session
	 */
	public CassandraTemplate(CqlOperations cqlOperations, CassandraConverter converter) {

		Assert.notNull(cqlOperations, "CqlOperations must not be null");
		Assert.notNull(converter, "CassandraConverter must not be null");

		this.converter = converter;
		this.cqlOperations = cqlOperations;
		this.entityOperations = new EntityOperations(converter.getMappingContext());
		this.mappingContext = converter.getMappingContext();
		this.projectionFactory = new SpelAwareProxyProjectionFactory();
		this.statementFactory = new StatementFactory(new QueryMapper(converter), new UpdateMapper(converter));
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#batchOps()
	 */
	@Override
	public CassandraBatchOperations batchOps() {
		return new CassandraBatchTemplate(this);
	}

	/* (non-Javadoc)
	 * @see org.springframework.context.ApplicationEventPublisherAware#setApplicationEventPublisher(org.springframework.context.ApplicationEventPublisher)
	 */
	@Override
	public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
		this.eventPublisher = applicationEventPublisher;
	}

	/* (non-Javadoc)
	 * @see org.springframework.context.ApplicationContextAware(org.springframework.context.ApplicationContext)
	 */
	@Override
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {

		if (entityCallbacks == null) {
			setEntityCallbacks(EntityCallbacks.create(applicationContext));
		}

		projectionFactory.setBeanFactory(applicationContext);
		projectionFactory.setBeanClassLoader(applicationContext.getClassLoader());
	}

	/**
	 * Configure {@link EntityCallbacks} to pre-/post-process entities during persistence operations.
	 *
	 * @param entityCallbacks
	 */
	public void setEntityCallbacks(@Nullable EntityCallbacks entityCallbacks) {
		this.entityCallbacks = entityCallbacks;
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#getConverter()
	 */
	@Override
	public CassandraConverter getConverter() {
		return this.converter;
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#CqlOperations()
	 */
	@Override
	public CqlOperations getCqlOperations() {
		return this.cqlOperations;
	}

	/**
	 * Returns the {@link EntityOperations} used to perform data access operations on an entity inside a Cassandra data
	 * source.
	 *
	 * @return the configured {@link EntityOperations} for this template.
	 * @see org.springframework.data.cassandra.core.EntityOperations
	 */
	protected EntityOperations getEntityOperations() {
		return this.entityOperations;
	}

	/**
	 * Returns a reference to the configured {@link ProjectionFactory} used by this template to process CQL query
	 * projections.
	 *
	 * @return a reference to the configured {@link ProjectionFactory} used by this template to process CQL query
	 *         projections.
	 * @see org.springframework.data.projection.SpelAwareProxyProjectionFactory
	 * @since 2.1
	 */
	protected SpelAwareProxyProjectionFactory getProjectionFactory() {
		return this.projectionFactory;
	}

	private CassandraPersistentEntity getRequiredPersistentEntity(Class entityType) {
		return getEntityOperations().getRequiredPersistentEntity(entityType);
	}

	/**
	 * Returns the {@link StatementFactory} used by this template to construct and run Cassandra CQL statements.
	 *
	 * @return the {@link StatementFactory} used by this template to construct and run Cassandra CQL statements.
	 * @see org.springframework.data.cassandra.core.StatementFactory
	 * @since 2.1
	 */
	protected StatementFactory getStatementFactory() {
		return this.statementFactory;
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#getTableName(java.lang.Class)
	 */
	@Override
	public CqlIdentifier getTableName(Class entityClass) {
		return getEntityOperations().getTableName(entityClass);
	}

	// -------------------------------------------------------------------------
	// Methods dealing with static CQL
	// -------------------------------------------------------------------------

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#select(java.lang.String, java.lang.Class)
	 */
	@Override
	public  List select(String cql, Class entityClass) {

		Assert.hasText(cql, "CQL must not be empty");

		return select(SimpleStatement.newInstance(cql), entityClass);
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#selectOne(java.lang.String, java.lang.Class)
	 */
	@Override
	public  T selectOne(String cql, Class entityClass) {

		Assert.hasText(cql, "CQL must not be empty");
		Assert.notNull(entityClass, "Entity type must not be null");

		return selectOne(SimpleStatement.newInstance(cql), entityClass);
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#stream(java.lang.String, java.lang.Class)
	 */
	@Override
	public  Stream stream(String cql, Class entityClass) throws DataAccessException {

		Assert.hasText(cql, "CQL must not be empty");
		Assert.notNull(entityClass, "Entity type must not be null");

		return stream(SimpleStatement.newInstance(cql), entityClass);
	}

	// -------------------------------------------------------------------------
	// Methods dealing with com.datastax.oss.driver.api.core.cql.Statement
	// -------------------------------------------------------------------------

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#select(com.datastax.oss.driver.api.core.cql.Statement, java.lang.Class)
	 */
	@Override
	public  List select(Statement statement, Class entityClass) {

		Assert.notNull(statement, "Statement must not be null");
		Assert.notNull(entityClass, "Entity type must not be null");

		Function mapper = getMapper(entityClass, entityClass, EntityQueryUtils.getTableName(statement));

		return getCqlOperations().query(statement, (row, rowNum) -> mapper.apply(row));
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#selectOne(com.datastax.oss.driver.api.core.cql.Statement, java.lang.Class)
	 */
	@Override
	public  T selectOne(Statement statement, Class entityClass) {

		List result = select(statement, entityClass);
		return result.isEmpty() ? null : result.get(0);
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#slice(com.datastax.oss.driver.api.core.cql.Statement, java.lang.Class)
	 */
	@Override
	public  Slice slice(Statement statement, Class entityClass) {

		Assert.notNull(statement, "Statement must not be null");
		Assert.notNull(entityClass, "Entity type must not be null");

		ResultSet resultSet = getCqlOperations().queryForResultSet(statement);

		Function mapper = getMapper(entityClass, entityClass, EntityQueryUtils.getTableName(statement));

		return EntityQueryUtils.readSlice(resultSet, (row, rowNum) -> mapper.apply(row), 0,
				getEffectivePageSize(statement));
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#stream(com.datastax.oss.driver.api.core.cql.Statement, java.lang.Class)
	 */
	@Override
	public  Stream stream(Statement statement, Class entityClass) throws DataAccessException {

		Assert.notNull(statement, "Statement must not be null");
		Assert.notNull(entityClass, "Entity type must not be null");

		ResultSet resultSet = getCqlOperations().queryForResultSet(statement);

		return StreamSupport.stream(resultSet.spliterator(), false)
				.map(getMapper(entityClass, entityClass, EntityQueryUtils.getTableName(statement)));
	}

	// -------------------------------------------------------------------------
	// Methods dealing with org.springframework.data.cassandra.core.query.Query
	// -------------------------------------------------------------------------

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#select(org.springframework.data.cassandra.core.query.Query, java.lang.Class)
	 */
	@Override
	public  List select(Query query, Class entityClass) throws DataAccessException {

		Assert.notNull(query, "Query must not be null");
		Assert.notNull(entityClass, "Entity type must not be null");

		return doSelect(query, entityClass, getTableName(entityClass), entityClass);
	}

	 List doSelect(Query query, Class entityClass, CqlIdentifier tableName, Class returnType) {

		CassandraPersistentEntity entity = getRequiredPersistentEntity(entityClass);

		Columns columns = getStatementFactory().computeColumnsForProjection(query.getColumns(), entity, returnType);

		Query queryToUse = query.columns(columns);

		StatementBuilder select = getStatementFactory().select(queryToUse, entity, tableName);

		Function mapper = getMapper(entityClass, returnType, tableName);

		return getCqlOperations().query(select.build(), (row, rowNum) -> mapper.apply(row));
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#selectOne(org.springframework.data.cassandra.core.query.Query, java.lang.Class)
	 */
	@Override
	public  T selectOne(Query query, Class entityClass) throws DataAccessException {

		List result = select(query, entityClass);

		return result.isEmpty() ? null : result.get(0);
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#slice(org.springframework.data.cassandra.core.query.Query, java.lang.Class)
	 */
	@Override
	public  Slice slice(Query query, Class entityClass) throws DataAccessException {

		Assert.notNull(query, "Query must not be null");
		Assert.notNull(entityClass, "Entity type must not be null");

		StatementBuilder select = getStatementFactory().select(query, getRequiredPersistentEntity(entityClass));

		return slice(select.build(), entityClass);
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#stream(org.springframework.data.cassandra.core.query.Query, java.lang.Class)
	 */
	@Override
	public  Stream stream(Query query, Class entityClass) throws DataAccessException {

		Assert.notNull(query, "Query must not be null");
		Assert.notNull(entityClass, "Entity type must not be null");

		return doStream(query, entityClass, getTableName(entityClass), entityClass);
	}

	 Stream doStream(Query query, Class entityClass, CqlIdentifier tableName, Class returnType) {

		StatementBuilder select = getStatementFactory().select(query, getRequiredPersistentEntity(entityClass),
				tableName);

		ResultSet resultSet = getCqlOperations().queryForResultSet(select.build());

		Function mapper = getMapper(entityClass, returnType, tableName);
		return StreamSupport.stream(resultSet.map(mapper).spliterator(), false);
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#update(org.springframework.data.cassandra.core.query.Query, org.springframework.data.cassandra.core.query.Update, java.lang.Class)
	 */
	@Override
	public boolean update(Query query, org.springframework.data.cassandra.core.query.Update update, Class entityClass)
			throws DataAccessException {

		Assert.notNull(query, "Query must not be null");
		Assert.notNull(update, "Update must not be null");
		Assert.notNull(entityClass, "Entity type must not be null");

		StatementBuilder updateStatement = getStatementFactory().update(query, update,
				getRequiredPersistentEntity(entityClass));

		return getCqlOperations().execute(updateStatement.build());
	}

	@Nullable
	WriteResult doUpdate(Query query, org.springframework.data.cassandra.core.query.Update update, Class entityClass,
			CqlIdentifier tableName) {

		StatementBuilder updateStatement = getStatementFactory().update(query, update,
				getRequiredPersistentEntity(entityClass), tableName);

		return getCqlOperations().execute(new StatementCallback(updateStatement.build()));
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#delete(org.springframework.data.cassandra.core.query.Query, java.lang.Class)
	 */
	@Override
	public boolean delete(Query query, Class entityClass) throws DataAccessException {

		Assert.notNull(query, "Query must not be null");
		Assert.notNull(entityClass, "Entity type must not be null");

		WriteResult result = doDelete(query, entityClass, getTableName(entityClass));

		return result != null && result.wasApplied();
	}

	@Nullable
	WriteResult doDelete(Query query, Class entityClass, CqlIdentifier tableName) {

		StatementBuilder delete = getStatementFactory().delete(query, getRequiredPersistentEntity(entityClass),
				tableName);
		SimpleStatement statement = delete.build();

		maybeEmitEvent(new BeforeDeleteEvent<>(statement, entityClass, tableName));

		WriteResult writeResult = getCqlOperations().execute(new StatementCallback(statement));

		maybeEmitEvent(new AfterDeleteEvent<>(statement, entityClass, tableName));

		return writeResult;
	}

	// -------------------------------------------------------------------------
	// Methods dealing with entities
	// -------------------------------------------------------------------------

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#count(java.lang.Class)
	 */
	@Override
	public long count(Class entityClass) {

		Assert.notNull(entityClass, "Entity type must not be null");

		return count(Query.empty(), entityClass);
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#count(org.springframework.data.cassandra.core.query.Query, java.lang.Class)
	 */
	@Override
	public long count(Query query, Class entityClass) throws DataAccessException {

		Assert.notNull(query, "Query must not be null");
		Assert.notNull(entityClass, "Entity type must not be null");

		return doCount(query, entityClass, getTableName(entityClass));
	}

	long doCount(Query query, Class entityClass, CqlIdentifier tableName) {

		StatementBuilder countStatement = getStatementFactory().count(query,
				getRequiredPersistentEntity(entityClass), tableName);

		SimpleStatement statement = countStatement.build();
		Long count = getCqlOperations().queryForObject(statement, Long.class);

		return count != null ? count : 0L;
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#exists(java.lang.Object, java.lang.Class)
	 */
	@Override
	public boolean exists(Object id, Class entityClass) {

		Assert.notNull(id, "Id must not be null");
		Assert.notNull(entityClass, "Entity type must not be null");

		CassandraPersistentEntity entity = getRequiredPersistentEntity(entityClass);
		StatementBuilder select = getStatementFactory().selectOneById(id, entity, entity.getTableName());

		return getCqlOperations().queryForResultSet(select.build()).one() != null;
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#exists(org.springframework.data.cassandra.core.query.Query, java.lang.Class)
	 */
	@Override
	public boolean exists(Query query, Class entityClass) throws DataAccessException {

		Assert.notNull(query, "Query must not be null");
		Assert.notNull(entityClass, "Entity type must not be null");

		return doExists(query, entityClass, getTableName(entityClass));
	}

	boolean doExists(Query query, Class entityClass, CqlIdentifier tableName) {

		StatementBuilder select = getStatementFactory().select(query.limit(1),
				getRequiredPersistentEntity(entityClass), tableName);

		return getCqlOperations().queryForResultSet(select.build()).one() != null;
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#selectOneById(java.lang.Object, java.lang.Class)
	 */
	@Override
	public  T selectOneById(Object id, Class entityClass) {

		Assert.notNull(id, "Id must not be null");
		Assert.notNull(entityClass, "Entity type must not be null");

		CassandraPersistentEntity entity = getRequiredPersistentEntity(entityClass);
		CqlIdentifier tableName = entity.getTableName();
		StatementBuilder select = getStatementFactory().selectOneById(id, entity, tableName);
		Function mapper = getMapper(entityClass, entityClass, tableName);
		List result = getCqlOperations().query(select.build(), (row, rowNum) -> mapper.apply(row));

		return result.isEmpty() ? null : result.get(0);
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#insert(java.lang.Object)
	 */
	@Override
	public  T insert(T entity) {
		return insert(entity, InsertOptions.empty()).getEntity();
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#insert(java.lang.Object, org.springframework.data.cassandra.core.InsertOptions)
	 */
	@Override
	public  EntityWriteResult insert(T entity, InsertOptions options) {

		Assert.notNull(entity, "Entity must not be null");
		Assert.notNull(options, "InsertOptions must not be null");

		return doInsert(entity, options, getTableName(entity.getClass()));
	}

	 EntityWriteResult doInsert(T entity, WriteOptions options, CqlIdentifier tableName) {

		AdaptibleEntity source = getEntityOperations().forEntity(maybeCallBeforeConvert(entity, tableName),
				getConverter().getConversionService());

		T entityToUse = source.isVersionedEntity() ? source.initializeVersionProperty() : entity;

		StatementBuilder builder = getStatementFactory().insert(entityToUse, options,
				source.getPersistentEntity(), tableName);

		if (source.isVersionedEntity()) {

			builder.apply(Insert::ifNotExists);
			return doInsertVersioned(builder.build(), entityToUse, source, tableName);
		}

		return doInsert(builder.build(), entityToUse, tableName);
	}

	private  EntityWriteResult doInsertVersioned(SimpleStatement insert, T entity, AdaptibleEntity source,
			CqlIdentifier tableName) {

		return executeSave(entity, tableName, insert, result -> {

			if (!result.wasApplied()) {
				throw new OptimisticLockingFailureException(
						String.format("Cannot insert entity %s with version %s into table %s as it already exists", entity,
								source.getVersion(), tableName));
			}
		});
	}

	private  EntityWriteResult doInsert(SimpleStatement insert, T entity, CqlIdentifier tableName) {
		return executeSave(entity, tableName, insert);
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#update(java.lang.Object)
	 */
	@Override
	public  T update(T entity) {
		return update(entity, UpdateOptions.empty()).getEntity();
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#update(java.lang.Object, org.springframework.data.cassandra.core.UpdateOptions)
	 */
	@Override
	public  EntityWriteResult update(T entity, UpdateOptions options) {

		Assert.notNull(entity, "Entity must not be null");
		Assert.notNull(options, "UpdateOptions must not be null");

		AdaptibleEntity source = getEntityOperations().forEntity(entity, getConverter().getConversionService());
		CassandraPersistentEntity persistentEntity = getRequiredPersistentEntity(entity.getClass());
		CqlIdentifier tableName = persistentEntity.getTableName();

		T entityToUpdate = maybeCallBeforeConvert(entity, tableName);

		return source.isVersionedEntity() ? doUpdateVersioned(entityToUpdate, options, tableName, persistentEntity)
				: doUpdate(entityToUpdate, options, tableName, persistentEntity);
	}

	private  EntityWriteResult doUpdateVersioned(T entity, UpdateOptions options, CqlIdentifier tableName,
			CassandraPersistentEntity persistentEntity) {

		AdaptibleEntity source = getEntityOperations().forEntity(entity, getConverter().getConversionService());

		Number previousVersion = source.getVersion();
		T toSave = source.incrementVersion();

		StatementBuilder builder = getStatementFactory().update(toSave, options, persistentEntity, tableName);
		SimpleStatement update = source.appendVersionCondition(builder, previousVersion).build();

		return executeSave(toSave, tableName, update, result -> {

			if (!result.wasApplied()) {
				throw new OptimisticLockingFailureException(
						String.format("Cannot save entity %s with version %s to table %s. Has it been modified meanwhile?", toSave,
								source.getVersion(), tableName));
			}
		});
	}

	private  EntityWriteResult doUpdate(T entity, UpdateOptions options, CqlIdentifier tableName,
			CassandraPersistentEntity persistentEntity) {

		StatementBuilder builder = getStatementFactory().update(entity, options, persistentEntity, tableName);

		return executeSave(entity, tableName, builder.build());
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#delete(java.lang.Object)
	 */
	@Override
	public void delete(Object entity) {
		delete(entity, QueryOptions.empty());
	}

	/* (non-Javadoc)
	 * @see org.springframework.data.cassandra.core.CassandraOperations#delete(java.lang.Object, org.springframework.data.cassandra.core.cql.QueryOptions)
	 */
	@Override
	public WriteResult delete(Object entity, QueryOptions options) {

		Assert.notNull(entity, "Entity must not be null");
		Assert.notNull(options, "QueryOptions must not be null");

		AdaptibleEntity