/**
 * Copyright 2011-2013 Akiban Technologies, Inc.
 * 
 * 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 com.akiban.sql.parser;

import com.akiban.sql.StandardException;

public class RowConstructorNode extends ValueNode
{
    private ValueNodeList list;
    private int depth; // max depth
    
    @Override
    public void init(Object list, Object count)
    {
        this.list = (ValueNodeList)list;
        depth = ((int[])count)[0];
    }

    /**
     * @inheritDoc
     */
    @Override
    protected boolean isEquivalent(ValueNode o) throws StandardException
    {
        if (!isSameNodeType(o))
        {
            return false;
        }
        
        RowConstructorNode other = (RowConstructorNode)o;
        return list.isEquivalent(other.list) && depth == other.depth;
    }

    @Override
    public void copyFrom(QueryTreeNode o) throws StandardException
    {
        super.copyFrom(o);
        RowConstructorNode other = (RowConstructorNode) o;
        list = (ValueNodeList)getNodeFactory().copyNode(other.list,
                                                        getParserContext());
        depth = other.depth;
    }

     /**
     * Accept the visitor for all visitable children of this node.
     * 
     * @param v the visitor
     *
     * @exception StandardException on error
     */
    @Override
    void acceptChildren(Visitor v) throws StandardException 
    {
        super.acceptChildren(v);

        if (list != null)
            list.accept(v);
    }
    
    @Override
    public String toString()
    {
        return list.toString() + "depth: " + depth + "\n";
    }

    public int getDepth()
    {
        return depth;
    }

    public ValueNodeList getNodeList()
    {
        return list;
    }
    
    public int listSize()
    {
        return list.size();
    }
}