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Cassandra support for Spring Data
/*
* Copyright 2013-2020 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.config;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.data.cassandra.core.cql.CqlTemplate;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import com.datastax.driver.core.Session;
/**
* Factory for configuring a {@link CqlTemplate}.
*
* @author Matthew T. Adams
* @author Mark Paluch
*/
public class CassandraCqlTemplateFactoryBean implements FactoryBean, InitializingBean {
private @Nullable CqlTemplate template;
private @Nullable Session session;
/* (non-Javadoc)
* @see org.springframework.beans.factory.FactoryBean#getObject()
*/
@Override
public CqlTemplate getObject() {
return template;
}
/* (non-Javadoc)
* @see org.springframework.beans.factory.FactoryBean#getObjectType()
*/
@Override
public Class getObjectType() {
return CqlTemplate.class;
}
/* (non-Javadoc)
* @see org.springframework.beans.factory.FactoryBean#isSingleton()
*/
@Override
public boolean isSingleton() {
return true;
}
/* (non-Javadoc)
* @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
*/
@Override
public void afterPropertiesSet() throws Exception {
Assert.notNull(session, "Session must not be null");
this.template = new CqlTemplate(session);
}
/**
* Sets the Cassandra {@link Session} to use. The {@link CqlTemplate} will use the logged keyspace of the underlying
* {@link Session}. Don't change the keyspace using CQL but use multiple {@link Session} and {@link CqlTemplate}
* beans.
*
* @param session must not be {@literal null}.
*/
public void setSession(Session session) {
Assert.notNull(session, "Session must not be null");
this.session = session;
}
}