Heavy Weight and Light Weight

Why is ejb2.x considered as heavy weight and ejb3.0 is considered as light weight?
What you mean by heavy/light weight?
How it affects the performance of server?

vinayak_chennai
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Nov 11th, 2008
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Questions by vinayak_chennai

EJB

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Srinivas Nalla

Jan 18th, 2012

EJB 3.0 is not really light-weight. EJB 3.0 differs from its earlier versions in terms of development and performance. Using pojos and annotations, unwanted method implementations and deployment descriptors can be avoided. However, the ejb containers are not light-weight. Containers like EasyBeans are considered light-weight.

Srinivas Nalla

Jan 18th, 2012

EJB 3.0 is not really light-weight. EJB 3.0 differs from its earlier versions in terms of development and NOT performance. Using pojos and annotations, unwanted method implementations and deployment descriptors can be avoided. However, the ejb containers are not light-weight. Containers like EasyBeans are considered light-weight.