| /* |
| * 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.apache.openjpa.persistence.query; |
| |
| import org.apache.openjpa.util.InternalException; |
| |
| /** |
| * A path resulting from KEY() or VALUE() operation on an existing path. |
| * |
| * @author Pinaki Poddar |
| * |
| */ |
| public class OperatorPath extends AbstractDomainObject { |
| |
| private static final long serialVersionUID = 1L; |
| |
| public OperatorPath(AbstractDomainObject operand, PathOperator operator) { |
| super(operand.getOwner(), operand, operator, null); |
| } |
| |
| @Override |
| public Class getLastSegment() { |
| throw new InternalException(); |
| } |
| |
| @Override |
| public String getAliasHint(AliasContext ctx) { |
| return getParent().getAliasHint(ctx); |
| } |
| |
| @Override |
| public String asProjection(AliasContext ctx) { |
| return getOperator() + "(" + getParent().asProjection(ctx) + ")"; |
| } |
| |
| @Override |
| public String asExpression(AliasContext ctx) { |
| return getOperator() + "(" + getParent().asExpression(ctx) + ")"; |
| } |
| |
| @Override |
| public String asJoinable(AliasContext ctx) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public String toString() { |
| return getOperator() + "(" + getParent().toString() + ")"; |
| } |
| |
| } |