package org.openautonomousconnection.htmlparser.dom;

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

public abstract class DomNode {
    protected DomNode parent;
    protected final List<DomNode> children = new ArrayList<>();

    public DomNode getParent() { return parent; }
    public List<DomNode> getChildren() { return children; }

    public void appendChild(DomNode child) {
        if (child == null) return;
        if (child.parent != null) child.parent.children.remove(child);
        child.parent = this;
        children.add(child);
    }

    public void removeChild(DomNode child) {
        if (child == null) return;
        if (children.remove(child)) child.parent = null;
    }

    public abstract String nodeName();
}