/*******************************************************************************
 * Copyright 2017 Graz University of Technology
 * EAAF-Core Components has been developed in a cooperation between EGIZ,  
 * A-SIT+, A-SIT, and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.2 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * https://joinup.ec.europa.eu/news/understanding-eupl-v12
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 *******************************************************************************/
/*******************************************************************************
 *******************************************************************************/
/*******************************************************************************
 *******************************************************************************/
package at.gv.egiz.eaaf.core.impl.idp.process.model;

import java.util.ArrayList;
import java.util.List;

import at.gv.egiz.eaaf.core.impl.idp.process.ProcessDefinitionParser;

/**
 * Represents a {@link StartEvent}, an {@link EndEvent} or a {@linkplain TaskInfo Task}.
 * @author tknall
 *
 */
public abstract class ProcessNode {

	private String id;
	private List<Transition> outgoingTransitions = new ArrayList<>();
	private List<Transition> incomingTransitions = new ArrayList<>();

	/**
	 * Returns the unique identifier of the process node.
	 * 
	 * @return The unique identifier (never {@code null} if process node comes from a process definition from
	 *         {@link ProcessDefinitionParser}).
	 */
	public String getId() {
		return id;
	}

	/**
	 * Sets the unique identifier of the process node.
	 * @param id The unique identifier.
	 */
	public void setId(String id) {
		this.id = id;
	}

	/**
	 * Returns a list of transitions pointing from this process node to another one.
	 * @return A list of transitions (never {@code null} if process node comes from a process definition from {@link ProcessDefinitionParser}).
	 */
	public List<Transition> getOutgoingTransitions() {
		return outgoingTransitions;
	}

	/**
	 * Sets the list of transitions pointing from this process node to another one.
	 * @param outgoingTransitions The list of transitions originating from this process node.
	 */
	public void setOutgoingTransitions(List<Transition> outgoingTransitions) {
		this.outgoingTransitions = outgoingTransitions;
	}

	/**
	 * Returns a list of transitions pointing from another process node to this one.
	 * @return A list of transitions (never {@code null} if process node comes from a process definition from {@link ProcessDefinitionParser}).
	 */
	public List<Transition> getIncomingTransitions() {
		return incomingTransitions;
	}

	/**
	 * Sets the list of transitions pointing from another process node to this one.
	 * @param incomingTransitions A list of transitions pointing to this process node.
	 */
	public void setIncomingTransitions(List<Transition> incomingTransitions) {
		this.incomingTransitions = incomingTransitions;
	}
	
}