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Struts & Hibernate
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| | | State information? | State information? 2003-11-16 - By Katz Guy
Back
Hi;
I have a component (component A) which interacts with another component
(component B).
For each invocation on component B there is a token that is returned from
component B to component A. component A needs to send it back to component B
in the folowing invocation order to invoke it successfully (kind of like the
pattern used to prevent duplicate form submitions in JSPs).
My question is:
Considering the fact that component A is an EJB (for various reasons).
Should I implement it as a statefull bean (which will hold the token for the
next request as its state) or a stateless bean (with a static map which hold
user IDs as keys and tokens as values).
Are there any related patterns for such scenarios?
My concern is that the token is not really state, its just a mechanism for
the proper work of the component and even if it was state - its to small to
get the penalty of a statefull bean.
What do you think>?
Thanks.
__ ____ ____ ____ _____
Guy Katz
Software Architect, CAP-IFS
Comverse
guy.katz@(protected)
+972 3 7663686
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<P><FONT SIZE=2 FACE="Arial">Hi;</FONT><FONT FACE="Times New Roman"><BR>
</FONT><FONT SIZE=2 FACE="Arial">I have a component (component A) which
interacts with another component (component B).</FONT><BR>
<FONT SIZE=2 FACE="Arial">For each invocation on component B there is a token
that is returned from component B to component A. component A needs to send it
back to component B in the folowing invocation order to invoke it successfully
(kind of like the pattern used to prevent duplicate form submitions in JSPs).<
/FONT></P>
<P><FONT SIZE=2 FACE="Arial">My question is:</FONT><FONT FACE="Times New Roman"
><BR>
</FONT><FONT SIZE=2 FACE="Arial">Considering the fact that component A is an
EJB (for various reasons). Should I implement it as a statefull bean (which
will hold the token for the next request as its state) or a stateless bean
(with a static map which hold user IDs as keys and tokens as values).</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Are there any related patterns for such scenarios?
</FONT><FONT FACE="Times New Roman"><BR>
</FONT><FONT SIZE=2 FACE="Arial">My concern is that the token is not really
state, its just a mechanism for the proper work of the component and even if it
was state - its to small to get the penalty of a statefull bean.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">What do you think>?</FONT><FONT FACE="Times New
Roman"><BR>
</FONT><FONT SIZE=2 FACE="Arial">Thanks.</FONT><FONT FACE="Times New Roman"> <
/FONT>
<BR><B><FONT SIZE=2 FACE="Arial">__ ____ ____ ____ _____</FONT></B><FONT FACE=
"Times New Roman"><BR>
</FONT><B></B><B><FONT SIZE=2 FACE="Arial">Guy Katz</FONT></B><FONT FACE="Times
New Roman"><BR>
</FONT><B></B><B><FONT SIZE=2 FACE="Arial">Software Architect, CAP-IFS</FONT><
/B><FONT FACE="Times New Roman"><BR>
</FONT><B></B><B><FONT SIZE=2 FACE="Arial">Comverse</FONT></B><FONT FACE="Times
New Roman"><BR>
</FONT><B></B><B><FONT SIZE=2 FACE="Arial">guy.katz@(protected)</FONT></B>
<FONT FACE="Times New Roman"><BR>
</FONT><B></B><B><FONT SIZE=2 FACE="Arial">+972 3 7663686</FONT></B><FONT FACE=
"Times New Roman"> </FONT>
</P>
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