abstracttaskflowlet.java

一个java写的business process management系统

/*
 * Copyright (c) 2003-2004, Alexander Greif
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Flow4J-Eclipse project nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

package net.orthanc.flow4j.runtime;

import java.util.Properties;

import net.orthanc.flow4j.runtime.descriptors.TaskParameterDescriptors;
import net.orthanc.flow4j.runtime.descriptors.TaskPropertyDescriptors;

/**
 * @author agreif
 *
 * Abstract base class of a task flowlet.
 * The methods getName() and execute() must be overriden by 
 * subclasses.
 */
public abstract class AbstractTaskFlowlet implements ITaskFlowlet {

	private Properties taskProperties;

	/**
	 * @see net.orthanc.flow4j.runtime.ITaskFlowlet#getDescription()
	 */
	public String getDescription() {
		return null;
	}

	/**
	 * @see net.orthanc.flow4j.runtime.ITaskFlowlet#getPropertyDescriptors()
	 */
	public TaskPropertyDescriptors getPropertyDescriptors() {
		return null;
	}

	/**
	 * @see net.orthanc.flow4j.runtime.ITaskFlowlet#setProperty(java.lang.String, java.lang.String)
	 */
	public void setProperty(String name, String value) {
		if (taskProperties == null)
			taskProperties = new Properties();
		taskProperties.setProperty(name, value);
	}

	/**
	 * @see net.orthanc.flow4j.runtime.ITaskFlowlet#getProperty(java.lang.String)
	 */
	public String getProperty(String name) {
		return taskProperties == null ? null : taskProperties.getProperty(name);
	}


	/**
	 * @see net.orthanc.flow4j.runtime.ITaskFlowlet#getInputParameterDescriptors()
	 */
	public TaskParameterDescriptors getInputParameterDescriptors() {
		return null;
	}

	/**
	 * @see net.orthanc.flow4j.runtime.ITaskFlowlet#getOutputParameterDescriptors()
	 */
	public TaskParameterDescriptors getOutputParameterDescriptors() {
		return null;
	}

}