/**
* Copyright 1999-2011 Alibaba Group
*
* 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 com.alibaba.cobar.client;
import java.sql.SQLException;
import java.util.Collection;
import org.springframework.dao.DataAccessException;
import org.springframework.orm.ibatis.SqlMapClientCallback;
import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;
import com.ibatis.sqlmap.client.SqlMapExecutor;
/**
* A DAO base class definition which adds more helper methods on batch
* operations.<br>
* Users can configure their DAO implementations with same configuration items
* of {@link CobarSqlMapClientTemplate}.<br>
* <br>
* Feature requested by Yao Ming.
*
* @author fujohnwang
* @since 1.0
*/
public class CobarSqlMapClientDaoSupport extends SqlMapClientDaoSupport {
public int batchInsert(final String statementName, final Collection<?> entities)
throws DataAccessException {
if (isPartitionBehaviorEnabled()) {
int counter = 0;
DataAccessException lastEx = null;
for (Object parameterObject : entities) {
try {
getSqlMapClientTemplate().insert(statementName, parameterObject);
counter++;
} catch (DataAccessException e) {
lastEx = e;
}
}
if (lastEx != null) {
throw lastEx;
}
return counter;
} else {
return (Integer) getSqlMapClientTemplate().execute(new SqlMapClientCallback() {
public Object doInSqlMapClient(SqlMapExecutor executor) throws SQLException {
executor.startBatch();
for (Object item : entities) {
executor.insert(statementName, item);
}
return executor.executeBatch();
}
});
}
}
public int batchDelete(final String statementName, final Collection<?> entities)
throws DataAccessException {
if (isPartitionBehaviorEnabled()) {
int counter = 0;
DataAccessException lastEx = null;
for (Object entity : entities) {
try {
counter += getSqlMapClientTemplate().delete(statementName, entity);
} catch (DataAccessException e) {
lastEx = e;
}
}
if (lastEx != null) {
throw lastEx;
}
return counter;
} else {
return (Integer) getSqlMapClientTemplate().execute(new SqlMapClientCallback() {
public Object doInSqlMapClient(SqlMapExecutor executor) throws SQLException {
executor.startBatch();
for (Object parameterObject : entities) {
executor.delete(statementName, parameterObject);
}
return executor.executeBatch();
}
});
}
}
public int batchUpdate(final String statementName, final Collection<?> entities)
throws DataAccessException {
if (isPartitionBehaviorEnabled()) {
int counter = 0;
DataAccessException lastEx = null;
for (Object parameterObject : entities) {
try {
counter += getSqlMapClientTemplate().update(statementName, parameterObject);
} catch (DataAccessException e) {
lastEx = e;
}
}
if (lastEx != null) {
throw lastEx;
}
return counter;
} else {
return (Integer) getSqlMapClientTemplate().execute(new SqlMapClientCallback() {
public Object doInSqlMapClient(SqlMapExecutor executor) throws SQLException {
executor.startBatch();
for (Object parameterObject : entities) {
executor.update(statementName, parameterObject);
}
return executor.executeBatch();
}
});
}
}
protected boolean isPartitionBehaviorEnabled() {
if (getSqlMapClientTemplate() instanceof CobarSqlMapClientTemplate) {
return ((CobarSqlMapClientTemplate) getSqlMapClientTemplate())
.isPartitioningBehaviorEnabled();
}
return false;
}
}