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contextawaretuples
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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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contextawaretuples [2010/10/20 17:08] cfscholl |
contextawaretuples [2010/10/20 17:48] (current) cfscholl |
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| [Tuple(location , ?loc), WithinBoundary(roomArea , ?loc)]; | [Tuple(location , ?loc), WithinBoundary(roomArea , ?loc)]; | ||
| </ | </ | ||
| - | |||
| - | |||
| ==== Context Consumer ==== | ==== Context Consumer ==== | ||
| + | Because the context provider specifies the rules in order to read its tuples the code for the context consumer is very easy. | ||
| + | The context consumer only has to read a tuple of type inRoom and register a listener for when such a tuple is read. In this case the listener will simply print that the user is currently in a particular room. The programmer can also react on the disappearance of a tuple by registering an outOfContext listener. In this case the listener will simply print that the user has move out of the room. | ||
| < | < | ||
| def cat := makeCatSystem(); | def cat := makeCatSystem(); | ||
| - | cat.whenever: | + | cat.whenever: |
| | | ||
| } outOfContext: | } outOfContext: | ||
| Line 67: | Line 67: | ||
| **Context-Aware Tuples for the Ambient**, C. Scholliers, E. Gonzalez Boix, W. De Meuter, T. D' | **Context-Aware Tuples for the Ambient**, C. Scholliers, E. Gonzalez Boix, W. De Meuter, T. D' | ||
| - | the 12th International Symposium on Distributed Objects, Middleware, and Applications (DOA' | + | the 12th International Symposium on Distributed Objects, Middleware, and Applications (DOA' |
contextawaretuples.1287587329.txt.gz ยท Last modified: 2010/10/20 17:10 (external edit)
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