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Spring Framework example source code file (MappingRecordOperation.java)

This example Spring Framework source code file (MappingRecordOperation.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

dataaccessexception, dataaccessexception, interactionspec, jdbc, mappingrecordoperation, object, object, record, recordcreatorimpl, recordcreatorimpl, recordextractor, recordextractorimpl, resourceexception, resourceexception, sql, sqlexception

The Spring Framework MappingRecordOperation.java source code

/*
 * Copyright 2002-2005 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.jca.cci.object;

import java.sql.SQLException;

import javax.resource.ResourceException;
import javax.resource.cci.ConnectionFactory;
import javax.resource.cci.InteractionSpec;
import javax.resource.cci.Record;
import javax.resource.cci.RecordFactory;

import org.springframework.dao.DataAccessException;
import org.springframework.jca.cci.core.RecordCreator;
import org.springframework.jca.cci.core.RecordExtractor;

/**
 * EIS operation object that expects mapped input and output objects,
 * converting to and from CCI Records.
 *
 * <p>Concrete subclasses must implement the abstract
 * <code>createInputRecord(RecordFactory, Object) and
 * <code>extractOutputData(Record) methods, to create an input
 * Record from an object and to convert an output Record into an object,
 * respectively.
 *
 * @author Thierry Templier
 * @author Juergen Hoeller
 * @since 1.2
 * @see #createInputRecord(javax.resource.cci.RecordFactory, Object)
 * @see #extractOutputData(javax.resource.cci.Record)
 */
public abstract class MappingRecordOperation extends EisOperation {

	/**
	 * Constructor that allows use as a JavaBean.
	 */
	public MappingRecordOperation() {
	}

	/**
	 * Convenient constructor with ConnectionFactory and specifications
	 * (connection and interaction).
	 * @param connectionFactory ConnectionFactory to use to obtain connections
	 */
	public MappingRecordOperation(ConnectionFactory connectionFactory, InteractionSpec interactionSpec) {
		getCciTemplate().setConnectionFactory(connectionFactory);
		setInteractionSpec(interactionSpec);
	}

	/**
	 * Set a RecordCreator that should be used for creating default output Records.
	 * <p>Default is none: CCI's Interaction.execute variant
	 * that returns an output Record will be called.
	 * <p>Specify a RecordCreator here if you always need to call CCI's
	 * <code>Interaction.execute variant with a passed-in output Record.
	 * This RecordCreator will then be invoked to create a default output Record instance.
	 * @see javax.resource.cci.Interaction#execute(javax.resource.cci.InteractionSpec, Record)
	 * @see javax.resource.cci.Interaction#execute(javax.resource.cci.InteractionSpec, Record, Record)
	 * @see org.springframework.jca.cci.core.CciTemplate#setOutputRecordCreator
	 */
	public void setOutputRecordCreator(RecordCreator creator) {
		getCciTemplate().setOutputRecordCreator(creator);
	}

	/**
	 * Execute the interaction encapsulated by this operation object.
	 * @param inputObject the input data, to be converted to a Record
	 * by the <code>createInputRecord method
	 * @return the output data extracted with the <code>extractOutputData method
	 * @throws DataAccessException if there is any problem
	 * @see #createInputRecord
	 * @see #extractOutputData
	 */
	public Object execute(Object inputObject) throws DataAccessException {
		return getCciTemplate().execute(
				getInteractionSpec(), new RecordCreatorImpl(inputObject), new RecordExtractorImpl());
	}


	/**
	 * Subclasses must implement this method to generate an input Record
	 * from an input object passed into the <code>execute method.
	 * @param inputObject the passed-in input object
	 * @return the CCI input Record
	 * @throws ResourceException if thrown by a CCI method, to be auto-converted
	 * to a DataAccessException
	 * @see #execute(Object)
	 */
	protected abstract Record createInputRecord(RecordFactory recordFactory, Object inputObject)
			throws ResourceException, DataAccessException;

	/**
	 * Subclasses must implement this method to convert the Record returned
	 * by CCI execution into a result object for the <code>execute method.
	 * @param outputRecord the Record returned by CCI execution
	 * @return the result object
	 * @throws ResourceException if thrown by a CCI method, to be auto-converted
	 * to a DataAccessException
	 * @see #execute(Object)
	 */
	protected abstract Object extractOutputData(Record outputRecord)
			throws ResourceException, SQLException, DataAccessException;


	/**
	 * Implementation of RecordCreator that calls the enclosing
	 * class's <code>createInputRecord method.
	 */
	protected class RecordCreatorImpl implements RecordCreator {

		private final Object inputObject;

		public RecordCreatorImpl(Object inObject) {
			this.inputObject = inObject;
		}

		public Record createRecord(RecordFactory recordFactory) throws ResourceException, DataAccessException {
			return createInputRecord(recordFactory, this.inputObject);
		}
	}


	/**
	 * Implementation of RecordExtractor that calls the enclosing
	 * class's <code>extractOutputData method.
	 */
	protected class RecordExtractorImpl implements RecordExtractor {

		public Object extractData(Record record) throws ResourceException, SQLException, DataAccessException {
			return extractOutputData(record);
		}
	}

}

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