001/*
002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.core.query.sql.model;
023
024import java.util.ArrayList;
025
026/**
027 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
028 */
029public class OperandList extends ArrayList<Operand> implements Operand {
030
031    private static final long serialVersionUID = -4527766076726382014L;
032
033    @Override
034    public void accept(IVisitor visitor) {
035        visitor.visitOperandList(this);
036    }
037
038    @Override
039    public String toString() {
040        StringBuilder buf = new StringBuilder();
041        if (isEmpty()) {
042            return "";
043        }
044        buf.append(get(0).toString());
045        for (int i = 1, size = size(); i < size; i++) {
046            buf.append(", ").append(get(i).toString());
047        }
048        return buf.toString();
049    }
050
051}