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Spring Framework example source code file (ParameterizedBeanPropertyRowMapper.java)

This example Spring Framework source code file (ParameterizedBeanPropertyRowMapper.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

beanpropertyrowmapper, jdbc, parameterizedbeanpropertyrowmapper, parameterizedbeanpropertyrowmapper, parameterizedrowmapper, parameterizedrowmapper, sql, sqlexception, sqlexception, suppresswarnings, t, t

The Spring Framework ParameterizedBeanPropertyRowMapper.java source code

/*
 * Copyright 2002-2008 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.simple;

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

import org.springframework.jdbc.core.BeanPropertyRowMapper;

/**
 * {@link ParameterizedRowMapper} implementation that converts a row into a new instance
 * of the specified mapped target class. The mapped target class must be a top-level class
 * and it must have a default or no-arg constructor.
 *
 * <p>Uses Java 5 covariant return types to override the return type of the {@link #mapRow}
 * method to be the type parameter <code>T.
 *
 * <p>Column values are mapped based on matching the column name as obtained from result set
 * metadata to public setters for the corresponding properties. The names are matched either
 * directly or by transforming a name separating the parts with underscores to the same name
 * using "camel" case.
 *
 * <p>Mapping is provided for fields in the target class for many common types, e.g.:
 * String, boolean, Boolean, byte, Byte, short, Short, int, Integer, long, Long,
 * float, Float, double, Double, BigDecimal, <code>java.util.Date, etc.
 *
 * <p>To facilitate mapping between columns and fields that don't have matching names,
 * try using column aliases in the SQL statement like "select fname as first_name from customer".
 *
 * <p>Please note that this class is designed to provide convenience rather than high performance.
 * For best performance consider using a custom RowMapper.
 *
 * @author Thomas Risberg
 * @author Juergen Hoeller
 * @since 2.5
 * @see ParameterizedRowMapper
 */
public class ParameterizedBeanPropertyRowMapper<T> extends BeanPropertyRowMapper
		implements ParameterizedRowMapper<T> {

	/**
	 * Create a new ParameterizedBeanPropertyRowMapper.
	 * <p>Generally prefer the {@link #newInstance(Class)} method instead,
	 * which avoids the need for specifying the mapped type twice.
	 * @see #setMappedClass
	 */
	public ParameterizedBeanPropertyRowMapper() {
	}

	@SuppressWarnings("unchecked")
	public T mapRow(ResultSet rs, int rowNumber) throws SQLException {
		return (T) super.mapRow(rs, rowNumber);
	}


	/**
	 * Static factory method to create a new ParameterizedBeanPropertyRowMapper
	 * (with the mapped class specified only once).
	 * @param mappedClass the class that each row should be mapped to
	 */
	public static <T> ParameterizedBeanPropertyRowMapper newInstance(Class mappedClass) {
		ParameterizedBeanPropertyRowMapper<T> newInstance = new ParameterizedBeanPropertyRowMapper();
		newInstance.setMappedClass(mappedClass);
		return newInstance;
	}

}

Other Spring Framework examples (source code examples)

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