/*
 * Copyright 2004-2013 the Seasar Foundation and the Others.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.seasar.extension.sql.node;

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

import org.seasar.extension.sql.Node;

/**
 * <code>Node</code>の抽象クラスです。
 * 
 * @author higa
 * 
 */
public abstract class AbstractNode implements Node {

    private List children = new ArrayList();

    /**
     * <code>AbstractNode</code>を作成します。
     */
    public AbstractNode() {
    }

    public int getChildSize() {
        return children.size();
    }

    public Node getChild(int index) {
        return (Node) children.get(index);
    }

    public void addChild(Node node) {
        children.add(node);
    }
}