| /* |
| * Copyright 2005 The Apache Software Foundation. |
| * |
| * 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.apache.jdo.pc; |
| |
| // Test graph with cycles: each class contains a member of the other class. |
| // |
| |
| |
| /** |
| * A class whose instances refer to instances of this class, creating a cycle. |
| * |
| * @author Dave Bristor |
| */ |
| public class PCCycle { |
| public String name; |
| public PCCycle2 c2; |
| |
| public PCCycle() { } |
| |
| public void init(String name, PCCycle2 c2) { |
| this.name = name; |
| this.c2 = c2; |
| } |
| |
| PCCycle2 getC2() { |
| return c2; |
| } |
| |
| public String toString(PCCycle2 c2) { |
| String rc = "loop!"; |
| if (this.c2 != c2) { |
| rc = toString(); |
| } |
| return rc; |
| } |
| |
| public String toString() { |
| String rc = null; |
| try { |
| rc = this.getClass().getName() |
| + " name=" + name; |
| try { |
| // Compare w/ PCCycle2.toString() |
| rc += " c2='" + getC2().toString() + "'"; |
| } catch (NullPointerException ex) { |
| ex.printStackTrace(System.err); |
| rc += " c2=<NPE>"; |
| } |
| } catch (NullPointerException ex) { |
| ex.printStackTrace(System.err); |
| rc = "PCCycle has no values"; |
| } |
| return rc; |
| } |
| } |