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Re: Is it possible to attach an object to active stateless session bean
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created by <a href="http://community.jboss.org/people/TheGroove">Christian Groove</a> in <i>EJB3</i> - <a href="http://community.jboss.org/message/582554#582554">View the full discussion</a>
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<div class="jive-rendered-content"><p>Salut Ilya,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>its much easier:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: courier new,courier;">     @Stateless(....)</span></p><p><span style="font-family: courier new,courier;">     public class MyBean </span></p><p><span style="font-family: courier new,courier;">     {</span></p><p><span style="font-family: courier new,courier;">       final private static     Logger            LOG = Logger.getLogger(MyBean.class) ;</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: courier new,courier;">       public int myMethod(...) </span></p><p><span style="font-family: courier new,courier;">       {</span></p><p><span style="font-family: courier new,courier;">         final CallCtx    myCtx = new CallCtx() ;</span></p><p><span style="font-family: courier new,courier;">         {</span></p><p>                      myCtx.add(somewaht) ;</p><p><span style="font-family: courier new,courier;">               <br/></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: courier new,courier;"> </span><span style="font-family: courier new,courier;">           callLibAMethod1(.....)</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: courier new,courier;">           callLibBMethod2(.....)</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: courier new,courier;">           .....</span></p><p><span style="font-family: courier new,courier;">         }</span></p><p><span style="font-family: courier new,courier;">         finally</span></p><p><span style="font-family: courier new,courier;">         {</span></p><p><span style="font-family: courier new,courier;">           myCtx.releaseAll() ;</span></p><p><span style="font-family: courier new,courier;">         }</span></p><p><span style="font-family: courier new,courier;">       }</span></p><p><span style="font-family: courier new,courier;">     }</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: arial,helvetica,sans-serif;">where: </span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: courier new,courier;">     class LibA</span></p><p><span style="font-family: courier new,courier;">     {</span></p><p><span style="font-family: courier new,courier;">       methode1()</span></p><p><span style="font-family: courier new,courier;">       {</span></p><p><strong style="font-family: courier new,courier;">         getRegObject("somewhat")</strong></p><p><span style="font-family: courier new,courier;">         ...</span></p><p><span style="font-family: courier new,courier;">         callsSomeoneElse(...)</span></p><p><span style="font-family: courier new,courier;">       }</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: courier new,courier;">     }</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: courier new,courier;">     class LibB</span></p><p style="padding-left: 30px;"><span style="font-family: courier new,courier;"> /* similar to LibA */</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: arial,helvetica,sans-serif;">The simple question is: Will i find some tricky workarouds, that prevents<br/></span></p><p><span style="font-family: arial,helvetica,sans-serif;">me of adding a myCtx param to each of the subsequently called methode,</span></p><p><span style="font-family: arial,helvetica,sans-serif;">that may be interestes in the registered object.</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: arial,helvetica,sans-serif;">The registered object is used similar to a JSF-Bean with the exception,</span></p><p><span style="font-family: arial,helvetica,sans-serif;">that it is not used outside from </span><span style="font-family: courier new,courier;">myMethod. Therefore, any solution</span></p><p><span style="font-family: arial,helvetica,sans-serif;">will be cluster-safe cause the object will be initialized on each new request</span></p><p><span style="font-family: arial,helvetica,sans-serif;">is will be not shared across two ejb-method calls.</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: arial,helvetica,sans-serif;">So, a node globel memory would be OK, where each session/thread</span></p><p><span style="font-family: arial,helvetica,sans-serif;">id would identiy a slot in that node-global memory. Anyway i would like</span></p><p><span style="font-family: arial,helvetica,sans-serif;">to use a more EJB related sollution, if there exist one.</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: arial,helvetica,sans-serif;">Another solution woluld be a parameter filed at each of the subsequently</span></p><p><span style="font-family: arial,helvetica,sans-serif;">called methode, passing a ctx-memory located at the bean.</span></p><p><span style="font-family: arial,helvetica,sans-serif;"><br/></span></p></div>
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