mei_rt2mei_rt2_fix_1
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Last change
on this file since 7211a95 was
7211a95,
checked in by Mei <mei@…>, 12 years ago
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1) add more python examples
2) add the missing linking role and linking oset api calls
3) fix the output of time typed data term/oset obj in typed_string format
(transform back from yap time format to our ddddddddTdddddd format
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Property mode set to
100755
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File size:
1.2 KB
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| [7211a95] | 1 | # |
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| 2 | # This example demonstrates intersections. An intersection is a logical and of |
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| 3 | # roles or osets. An intersection succeeds if the principal is in the |
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| 4 | # intersection of the sets defined by the roles. |
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| 5 | # |
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| 6 | # The policy set by Acme is that a character must both a preferred customer and |
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| 7 | # a WarnerBrothers character to buy rockets. Each of those attributes is |
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| 8 | # specified by a role. |
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| 9 | # |
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| 10 | # This example defines 4 principals, Acme, WarnerBrothers, Coyote and Batman. |
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| 11 | # Credential 1 defines the policy requiring both roles to get the buy_rockets |
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| 12 | # role. Credential 2 gives the Coyote a preferred_customer role. Credential 3 |
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| 13 | # gives Batman the preferred_customer role and Credential 4 recognizes the |
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| 14 | # Coyote as a Warner Brothers character. |
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| 15 | # |
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| 16 | #In order to buy rockets from Acme, you must be BOTH a preferred customer |
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| 17 | #AND a WarnerBros character. In this example, the following query will be |
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| 18 | #successful: |
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| 19 | # |
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| 20 | # Acme.buy_rockets <-?- Coyote |
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| 21 | # |
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| 22 | #The following query will fail (because Batman does not have the |
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| 23 | #attribute WarnerBros.character): |
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| 24 | # |
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| 25 | # Acme.buy_rockets <-?- Batman |
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| 26 | # |
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| 27 | # Acme.buy_rockets <- Acme.preferred_customer & WarnerBros.character |
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| 28 | # Acme.preferred_customer <- Coyote |
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| 29 | # Acme.preferred_customer <- Batman |
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| 30 | # WarnerBros.character <- Coyote |
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