com.javacreed.examples.spring.StreamingStatementCreator.java Source code

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/*
 * #%L
 * How To Stream ResultSet using JdbcTemplate
 * $Id:$
 * $HeadURL:$
 * %%
 * Copyright (C) 2012 - 2015 Java Creed
 * %%
 * 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.
 * #L%
 */
package com.javacreed.examples.spring;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import org.springframework.jdbc.core.PreparedStatementCreator;

public class StreamingStatementCreator implements PreparedStatementCreator {

    private final String query;

    public StreamingStatementCreator(final String query) {
        this.query = query;
    }

    @Override
    public PreparedStatement createPreparedStatement(final Connection connection) throws SQLException {
        final PreparedStatement statement = connection.prepareStatement(query, ResultSet.TYPE_FORWARD_ONLY,
                ResultSet.CONCUR_READ_ONLY);
        statement.setFetchSize(Integer.MIN_VALUE);
        return statement;
    }
}