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Is J2EE patterns based on specific version?

 
Joseph Zhou
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I looked the Transfer Object pattern at book Core J2EE Patterns, 2nd. It describes a "Entity Inherits Transfer Object Strategy". It should base on EJB 1.1 or earlier, but not for EJB 2.0. Is some J2EE patterns based on specific version?
 
Annie Zhang
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I guess so. Another example is composite entity pattern, which only applies to the EJB 2.0.
 
Hu Rui
Greenhorn
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The standard Gof pattern apply to J2EE as well.
There is no need to go too detail into J2EE pattern.

In J2EE you only need to understand,
1) MVC for Web tie.
2) Session facade for EJB
3) Value object for transfer data.

No need to learn about pattern about Entity bean, that thing really sucks, as far as I can remember, there was not any question about Entity bean pattern.
 
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