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Spring Framework example source code file (RowMapper.java)

This example Spring Framework source code file (RowMapper.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

jdbc, object, object, rowmapper, rowmapper, sql, sqlexception, sqlexception

The Spring Framework RowMapper.java source code

/*
 * Copyright 2002-2007 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.jdbc.core;

import java.sql.ResultSet;
import java.sql.SQLException;

/**
 * An interface used by {@link JdbcTemplate} for mapping rows of a
 * {@link java.sql.ResultSet} on a per-row basis. Implementations of this
 * interface perform the actual work of mapping each row to a result object,
 * but don't need to worry about exception handling.
 * {@link java.sql.SQLException SQLExceptions} will be caught and handled
 * by the calling JdbcTemplate.
 *
 * <p>Typically used either for {@link JdbcTemplate}'s query methods
 * or for out parameters of stored procedures. RowMapper objects are
 * typically stateless and thus reusable; they are an ideal choice for
 * implementing row-mapping logic in a single place.
 *
 * <p>Alternatively, consider subclassing
 * {@link org.springframework.jdbc.object.MappingSqlQuery} from the
 * <code>jdbc.object package: Instead of working with separate
 * JdbcTemplate and RowMapper objects, you can build executable query
 * objects (containing row-mapping logic) in that style.
 *
 * @author Thomas Risberg
 * @author Juergen Hoeller
 * @see JdbcTemplate
 * @see RowCallbackHandler
 * @see ResultSetExtractor
 * @see org.springframework.jdbc.object.MappingSqlQuery
 */
public interface RowMapper {

	/** 
	 * Implementations must implement this method to map each row of data
	 * in the ResultSet. This method should not call <code>next() on
	 * the ResultSet; it is only supposed to map values of the current row.
	 * @param rs the ResultSet to map (pre-initialized for the current row)
	 * @param rowNum the number of the current row
	 * @return the result object for the current row
	 * @throws SQLException if a SQLException is encountered getting
	 * column values (that is, there's no need to catch SQLException)
	 */
	Object mapRow(ResultSet rs, int rowNum) throws SQLException; 

}
 

Other Spring Framework examples (source code examples)

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