Clover Coverage Report
Coverage timestamp: Sun Mar 23 2008 08:24:39 GMT
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  Term       Line # 44 0 1 - -1.0
 
No Tests
 
1    /*
2    * Copyright (c) 2000-2005, University of Salford
3    * All rights reserved.
4    *
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions are met:
7    *
8    * Redistributions of source code must retain the above copyright notice, this
9    * list of conditions and the following disclaimer.
10    *
11    * Redistributions in binary form must reproduce the above copyright notice,
12    * this list of conditions and the following disclaimer in the documentation
13    * and/or other materials provided with the distribution.
14    *
15    * Neither the name of the University of Salford nor the names of its
16    * contributors may be used to endorse or promote products derived from this
17    * software without specific prior written permission.
18    *
19    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20    * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22    * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23    * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24    * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25    * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26    * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27    * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28    * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29    * POSSIBILITY OF SUCH DAMAGE.
30    */
31   
32    package issrg.pba.rbac.xmlpolicy.ifstatement;
33   
34    /**
35    * This interface defines the functionality necessary to deliver results. The
36    * IF-statement consists of terms, some of them being unary and binary
37    * operators,
38    * others being sources of data (Constants, Arguments, Environment).
39    *
40    * @author A.Otenko
41    * @version 1.0
42    */
43   
 
44    public interface Term {
45    /**
46    * This method returns the type of the value this term returns. The
47    * types are defined by convention of the developers and RBAC policy
48    * administrators.
49    *
50    * @return a case-sensitive type name as calculated at run-time
51    */
52    public String getType();
53   
54    /**
55    * This method returns the evaluated result at run-time. The actual type
56    * of the object depends on the term and is guaranteed to be of the type
57    * returned by getType().
58    *
59    * @param env is the execution environment
60    *
61    * @return an object representing the result
62    * @throws EvaluationException if the term cannot be evaluated
63    */
64    public Object evaluate(Environment env) throws EvaluationException;
65    }