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fine-grained and coarse grained

Madhu Juneja
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Joined: Mar 10, 2001
Posts: 176
What is the meaning of fine-grained and coarse-grained in terms of EJB ?
Skip Cole
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Joined: Jan 05, 2001
Posts: 175
The amount of detail accessible and needed to do something.
For example, When picard says "Go to Rigelan 4", that is course grained control.
If he said, "turn the ship 195 degrees port, lift 15 degrees, begin accelarating at 200 g forces, achieve a velocity of warp 7, begin decreasing velocity when we are withing 1 light year, ..." and so on, that would be fine-grained control.
Course gained control from the client side decreases network traffic, and is a good thing. The client side app generally doesn't care how things get done, but just that they get done.
Skip

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Avijeet Dash
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Joined: Jan 21, 2001
Posts: 148
important type of objects
coarse-grained:
objects with some methods involving business logic.

fine-granied:
objects with only set/get methods.

dependent:
objects that make sense only in a context.

immutable:
objects with only get methods.
some important design strategies.
1. entity beans sould be corase-grained.
2. dependent objects can be used as attributes in their top-level classes.
 
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