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A collection of classes shared by broadleaf profile, cms, admin, and core.
/*
* Copyright 2008-2013 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.broadleafcommerce.common.util.dao;
import javax.persistence.Query;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author jfischer
*
*/
public class BatchRetrieveDao {
//Default batch read size
private int inClauseBatchSize = 300;
@SuppressWarnings("unchecked")
public List batchExecuteReadQuery(Query query, List> params, String parameterName) {
List response = new ArrayList();
int start = 0;
while (start < params.size()) {
List> batchParams = params.subList(start, params.size() < inClauseBatchSize ? params.size() : inClauseBatchSize);
query.setParameter(parameterName, batchParams);
response.addAll(query.getResultList());
start += inClauseBatchSize;
}
return response;
}
public int getInClauseBatchSize() {
return inClauseBatchSize;
}
public void setInClauseBatchSize(int inClauseBatchSize) {
this.inClauseBatchSize = inClauseBatchSize;
}
}
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