source: fedd/abac-src/rbtm/access/AckFact.java @ df783c1

axis_examplecompt_changesinfo-opsversion-2.00version-3.01version-3.02
Last change on this file since df783c1 was 8780cbec, checked in by Jay Jacobs <Jay.Jacobs@…>, 15 years ago

ABAC sources from Cobham

  • Property mode set to 100755
File size: 2.3 KB
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[8780cbec]1package com.nailabs.abac.access;
2
3import edu.stanford.peer.rbtm.credential.*;
4
5public class AckFact {
6
7    /**
8     * This attribute defines the scope of the AckFact instance.
9     */
10    protected RoleName attribute;
11
12    /**
13     * Optional string meta-identifier for the value field.
14     */
15    protected String field;
16
17    /**
18     * Optional value corresponding to the named field.
19     */
20    protected Object value;
21
22    /**
23     * The credential role required to match with the requesting subject.
24     */
25    protected EntityExpression requirement;
26   
27    /**
28     * A constant to represent a default value (aka a wildcard).
29     */
30    static final String DEFAULT = "default";
31
32    /**
33     * A true constant for denoting that no requirements are necessary.
34     * This can also be implicitly represented as a null requirement.
35     */
36    static final String TRUE = "true";
37
38    /**
39     * Basic constructor method. This method subtitutes a default key-value
40     * pair.
41     */
42    public AckFact(RoleName attribute, EntityExpression req) {
43        this(attribute, DEFAULT, DEFAULT, req);
44    }
45
46    /**
47     * Explicit constructor method. This represents a fully expanded policy
48     * fact.
49     */
50    public AckFact(RoleName attr,String key,Object val,EntityExpression req) {
51        attribute = attr;
52        field = key;
53        value = val;
54        requirement = req;
55    }
56
57    /**
58     * An accessor method for the attribute which needs to be unlocked.
59     * <B> This is private policy information and should not be xmitted </B>
60     */
61    public RoleName getAttribute() { return attribute; }
62
63    /**
64     * An accessor method for the optional special case meta-type.
65     * <B> This is private policy information and should not be xmitted </B>
66     */
67    public String getField() { return field; }
68
69    /**
70     * An accessor method for the optional special case value.
71     * <B> This is private policy information and should not be xmitted </B>
72     */
73    public Object getValue() { return value; }
74
75    /**
76     * An accessor method for an expression which can unlocked the attribute
77     * if the expression is proved to be true.
78     * <B> This is public policy information but if transmitted may indicate
79     * that particular credential is possessed.</B>
80     */
81    public EntityExpression getRequirement() { return requirement; }
82}
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