com.blazebit.persistence.impl.plan.DefaultModificationQueryPlan Maven / Gradle / Ivy

/*
 * Copyright 2014 - 2020 Blazebit.
 *
 * 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.blazebit.persistence.impl.plan;

import com.blazebit.persistence.spi.DbmsStatementType;

import javax.persistence.Query;

/**
 *
 * @author Christian Beikov
 * @since 1.2.0
 */
public class DefaultModificationQueryPlan implements ModificationQueryPlan {

    private final DbmsStatementType statementType;
    private final Query query;
    private final int firstResult;
    private final int maxResults;

    public DefaultModificationQueryPlan(DbmsStatementType statementType, Query query, int firstResult, int maxResults) {
        this.statementType = statementType;
        this.query = query;
        this.firstResult = firstResult;
        this.maxResults = maxResults;
    }

    @Override
    public int executeUpdate() {
        // Don't set the values for UPDATE or DELETE statements, otherwise Datanucleus will pass through the values to the JDBC statement
        if (statementType == DbmsStatementType.INSERT) {
            query.setFirstResult(firstResult);
            query.setMaxResults(maxResults);
        }
        return query.executeUpdate();
    }

}