| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.ofbiz.sql; |
| |
| public final class Unioned extends Atom { |
| public enum Operator { UNION, UNION_ALL, INTERSECT, INTERSECT_ALL, EXCEPT, EXCEPT_ALL } |
| |
| private final Operator operator; |
| private final SelectGroup group; |
| private final Unioned next; |
| |
| public Unioned(Operator operator, SelectGroup group, Unioned next) { |
| this.operator = operator; |
| this.group = group; |
| this.next = next; |
| } |
| |
| public Operator getOperator() { |
| return operator; |
| } |
| |
| public SelectGroup getGroup() { |
| return group; |
| } |
| |
| public Unioned getNext() { |
| return next; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (o instanceof Unioned) { |
| Unioned other = (Unioned) o; |
| return operator.equals(other.operator) && group.equals(other.group) && equalsHelper(next, other.next); |
| } else { |
| return false; |
| } |
| } |
| |
| public StringBuilder appendTo(StringBuilder sb) { |
| sb.append(' ').append(operator.toString().replace('_', ' ')).append(' '); |
| group.appendTo(sb); |
| if (next != null) { |
| next.appendTo(sb); |
| } |
| return sb; |
| } |
| } |