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Spring Framework example source code file (RowCallbackHandler.java)

This example Spring Framework source code file (RowCallbackHandler.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, rowcallbackhandler, rowcallbackhandler, sql, sqlexception, sqlexception

The Spring Framework RowCallbackHandler.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,
 * 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 processing rows of a
 * {@link java.sql.ResultSet} on a per-row basis. Implementations of
 * this interface perform the actual work of processing each row
 * but don't need to worry about exception handling.
 * {@link java.sql.SQLException SQLExceptions} will be caught and handled
 * by the calling JdbcTemplate.
 * <p>In contrast to a {@link ResultSetExtractor}, a RowCallbackHandler
 * object is typically stateful: It keeps the result state within the
 * object, to be available for later inspection. See
 * {@link RowCountCallbackHandler} for a usage example.
 * <p>Consider using a {@link RowMapper} instead if you need to map
 * exactly one result object per row, assembling them into a List.
 * @author Rod Johnson
 * @author Juergen Hoeller
 * @see JdbcTemplate
 * @see RowMapper
 * @see ResultSetExtractor
 * @see RowCountCallbackHandler
public interface RowCallbackHandler {

	 * Implementations must implement this method to process each row of data
	 * in the ResultSet. This method should not call <code>next() on
	 * the ResultSet; it is only supposed to extract values of the current row.
	 * <p>Exactly what the implementation chooses to do is up to it:
	 * A trivial implementation might simply count rows, while another
	 * implementation might build an XML document.
	 * @param rs the ResultSet to process (pre-initialized for the current row)
	 * @throws SQLException if a SQLException is encountered getting
	 * column values (that is, there's no need to catch SQLException)
	void processRow(ResultSet rs) throws SQLException;


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