/*
* Copyright 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.springframework.xd.tuple.batch;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.support.JdbcUtils;
import org.springframework.xd.tuple.Tuple;
import org.springframework.xd.tuple.TupleBuilder;
/**
* A {@link RowMapper} implementation to be used with the {@link Tuple} data structure. The resulting Tuple consists of
* the column names as the field names and the result of the {@link ResultSet#getObject(int)} as the value. The order of
* the data will be the order they are returned in the ResultSet (column order).
*
* @author Michael Minella
*
*/
public class TupleRowMapper implements RowMapper<Tuple> {
/*
* (non-Javadoc)
*
* @see org.springframework.jdbc.core.RowMapper#mapRow(ResultSet rs, int rowNum)
*/
@Override
public Tuple mapRow(ResultSet rs, int rowNum) throws SQLException {
int columnCount = rs.getMetaData().getColumnCount();
TupleBuilder builder = TupleBuilder.tuple();
for (int i = 1; i <= columnCount; i++) {
builder.put(rs.getMetaData().getColumnName(i), JdbcUtils.getResultSetValue(rs, i));
}
return builder.build();
}
}