spring-batch HibernateQueryProvider 源码
spring-batch HibernateQueryProvider 代码
文件路径：/spring-batch-infrastructure/src/main/java/org/springframework/batch/item/database/orm/HibernateQueryProvider.java
/*
* Copyright 2006-2008 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.batch.item.database.orm;
import org.hibernate.query.Query;
import org.hibernate.Session;
import org.hibernate.StatelessSession;
import org.springframework.batch.item.ItemReader;
/**
* <p>
* Interface defining the functionality to be provided for generating queries for use with
* Hibernate {@link ItemReader}s or other custom built artifacts.
* </p>
*
* @author Anatoly Polinsky
* @author Dave Syer
* @since 2.1
*
*/
public interface HibernateQueryProvider<T> {
/**
* <p>
* Create the query object which type will be determined by the underline
* implementation (e.g. Hibernate, JPA, etc.)
* </p>
* @return created query
*/
Query<T> createQuery();
/**
* <p>
* Inject a {@link Session} that can be used as a factory for queries. The state of
* the session is controlled by the caller (i.e. it should be closed if necessary).
* </p>
*
* <p>
* Use either this method or {@link #setStatelessSession(StatelessSession)}
* </p>
* @param session the {@link Session} to set
*/
void setSession(Session session);
/**
* <p>
* Inject a {@link StatelessSession} that can be used as a factory for queries. The
* state of the session is controlled by the caller (i.e. it should be closed if
* necessary).
* </p>
*
* <p>
* Use either this method or {@link #setSession(Session)}
* </p>
* @param session the {@link StatelessSession} to set
*/
void setStatelessSession(StatelessSession session);
}
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