/**
 * Copyright (c) 2010
 * Signavio, Sven Wagner-Boysen
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package de.hpi.bpmn2_0.model.bpmndi.di;

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

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElementRef;
import javax.xml.bind.annotation.XmlSeeAlso;
import javax.xml.bind.annotation.XmlType;

import de.hpi.bpmn2_0.model.bpmndi.BPMNEdge;
import de.hpi.bpmn2_0.model.bpmndi.BPMNPlane;
import de.hpi.bpmn2_0.model.bpmndi.BPMNShape;


/**
 * <p>Java class for Plane complex type.
 * 
 * <p>The following schema fragment specifies the expected content contained within this class.
 * 
 * <pre>
 * <complexType name="Plane">
 *   <complexContent>
 *     <extension base="{http://www.omg.org/spec/DD/20100524/DI}Node">
 *       <sequence>
 *         <element ref="{http://www.omg.org/spec/DD/20100524/DI}DiagramElement" maxOccurs="unbounded" minOccurs="0"/>
 *       </sequence>
 *       <anyAttribute processContents='lax' namespace='##other'/>
 *     </extension>
 *   </complexContent>
 * </complexType>
 * </pre>
 * 
 * 
 */
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(propOrder = {
    "diagramElement"
})
@XmlSeeAlso({
    BPMNPlane.class
})
public abstract class Plane extends Node
{

    @XmlElementRef(name = "DiagramElement")
    protected List<DiagramElement> diagramElement;

    /**
     * Gets the value of the diagramElement property.
     * 
     * <p>
     * This accessor method returns a reference to the live list,
     * not a snapshot. Therefore any modification you make to the
     * returned list will be present inside the JAXB object.
     * This is why there is not a <CODE>set</CODE> method for the diagramElement property.
     * 
     * <p>
     * For example, to add a new item, do as follows:
     * <pre>
     *    getDiagramElement().add(newItem);
     * </pre>
     * 
     * 
     * <p>
     * Objects of the following type(s) are allowed in the list
     * {@link BPMNShape }
     * {@link BPMNEdge }
     * {@link DiagramElement }
     * 
     * 
     */
    public List<DiagramElement> getDiagramElement() {
        if (diagramElement == null) {
            diagramElement = new ArrayList<DiagramElement>();
        }
        return this.diagramElement;
    }

}