foundation/org.eclipse.persistence.core/src/main/java/org/eclipse/persistence/internal/codegen/HierarchyNode.java

/*
 * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.internal.codegen;

import java.util.*;

/**
 * INTERNAL:
 */
public class HierarchyNode {
    //  the class that this node represents
    public String className;
    public HierarchyNode parent;
    public List<HierarchyNode> children;

    /**
     * This member will hold the different definition types that should be implemented by the code generated children
     * Used mostly in CMP code generation
     */
    public List<?> definitions;

    public HierarchyNode(String className) {
        this.className = className;
        this.children = new ArrayList<>();
        this.definitions = new ArrayList<>();
    }

    public void setParent(HierarchyNode parent) {
        this.parent = parent;
        this.parent.addChild(this);
    }

    public void addChild(HierarchyNode child) {
        if (!this.children.contains(child)) {
            this.children.add(child);
        }
    }

    public List<HierarchyNode> getChildren() {
        return this.children;
    }

    public HierarchyNode getParent() {
        return this.parent;
    }

    public String getClassName() {
        return this.className;
    }

    @Override
    public String toString() {
        return "HierarchyNode:\n\t" + className + "\n" + children + "\n end HierarchyNode\n";
    }
}