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1   /*
2    * Copyright 2005 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at 
7    * 
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software 
11   * distributed under the License is distributed on an "AS IS" BASIS, 
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
13   * See the License for the specific language governing permissions and 
14   * limitations under the License.
15   */
16  
17  
18  package org.apache.jdo.impl.enhancer.util;
19  
20  
21  /***
22   * Support for signalling internal implementation errors.
23   */
24  public class Assertion {
25  
26      static protected final void affirm(boolean condition) {
27          if (!condition)
28              throw new InternalError("assertion failed.");
29      }
30  
31      static protected final void affirm(boolean condition, String msg) {
32          if (!condition)
33              throw new InternalError("assertion failed: " + msg);
34      }
35  
36      static protected final void affirm(Object object) {
37          if (object == null)
38              throw new InternalError("assertion failed.");
39      }
40  
41      static protected final void affirm(Object object, String msg) {
42          if (object == null)
43              throw new InternalError("assertion failed: " + msg);
44      }
45  }