January 2008 - jboss-dev-forums - Jboss List Archives

[Design of Messaging on JBoss (Messaging/JBoss)] - Re: New transport: Determining oneway messages

by jmesnil

"timfox" wrote : Several messages, e.g. acknowledge or cancel etc, can be sent wither oneWay or blocking depending on the particular use case. | | Currently when such is processed on the server, there is currently no generic way to know whether a response is required to be sent. | | SendMessage currently does this by checking whether the message is durable. | | I think we need some generic way of a packet knowing whether a response is required (e.g. a oneway flag in AbstractPacket) rather than having to rely on application semantics to determine whether a response should be sent. | Good suggestion. I'll add a oneWay boolean attribute to AbstractPacket. In the packet handler, before leaving the handle() method, I check if there is a response to send or if the oneWay boolean is set to false on the request. If the boolean is set to false, I'll send a NullPacket() to "unblock" the client side. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124042#4124042 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4124042

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[Design the new POJO MicroContainer] - Re: Class loading debugging

by adrian＠jboss.org

"scott.stark(a)jboss.org" wrote : Another thing I would like to get is a directed graph of the domains/policies for a package. An example question to be able to answer is what applications are using what versions of an xml parser implementation. | That information is already availble on the deployment if you are using explicit imorts, but it's an implementation detail. deployment unit -> deployment controller context - > dependeny info -> getDependsOnMe For the deployments that don't use explicit imports (i.e. importAll) you'd need to work out if that classloader is the first providing that package in each domain and assume that all classloaders using "importAll" in that domain are "using" the xml parser. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124040#4124040 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4124040

16 years, 11 months

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[Design of POJO Server] - Re: Domain interaction when there is scoping

by adrian＠jboss.org

"scott.stark(a)jboss.org" wrote : | but we need to make it easier for subdeployments to build class loader in the correct domain. | That's what I said above. Instead of trying to hack something for the war classloader use case, let's try to do this generically in the structure metadata such that any subdeployment can say its classpath isn't to be added to the root classloader of the deployment, instead a new subdeployment classloader is built "on top of" the deployment classloader. This is going to have to be modelled in the "Classloading" anyway since you can image the case where you have two wars that explictly import different versions of log4j for example in the same ear. i.e. the log4j classes don't come from the WEB-INF/lib they are imported from a repository based on version constraints. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124037#4124037 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4124037

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[Design of JBoss ESB] - Re: Upgrade to Drooles-4.0.4

by mark.little＠jboss.com

Please mention this on the Drools forums so they have visibility. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124035#4124035 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4124035

16 years, 11 months

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[Design of JBoss jBPM] - Re: how to define global variables for process in xml

by kukeltje

Wrong forum....... butr #{varName} should also work View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124034#4124034 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4124034

16 years, 11 months

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[Design of JBoss jBPM] - how to define global variables for process in xml

by inxaoc

Hi! How to add variables in process-definition.xml to whole process (to make it as global variable which will be visible in any node)? And how to get this variable by using Expressions (like is described here - chapter 18.3. http://docs.jboss.com/jbpm/v3/userguide/jpdl.html#expressions for using in decision node : #{processInstance.contextInstance.variables['varName']}?? Is it true? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124027#4124027 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4124027

16 years, 11 months

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[Design of POJO Server] - Re: Truncated class file exception with NoCopy VFS

by alesj

"dimitris(a)jboss.org" wrote : | Is there supposed to be any performance improvement using the -Djboss.vfs.forceNoCopy=true flag. I don't see any. | It removes the time a file is created in tmp directory. And not filling the tmp dir with numerous copies. But the code itself is not that different from copy jar handling, so there is not to expect any huge performance gain there. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124011#4124011 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4124011

16 years, 11 months

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[Design of JBoss ESB] - Upgrade to Drooles-4.0.4

by kadlecp

Hello, maybe you know it, nevertheless I would like to report that drools-4.0.2 has leak memory bug. I am run out of memory very early with content based router (after approx. 15000 messages). With drools-4.0.4 it's ok. Best regards Pavel Kadlec View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124009#4124009 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4124009

16 years, 11 months

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[Design of POJO Server] - Re: Truncated class file exception with NoCopy VFS

by dimitris＠jboss.org

On a (un)related note: Is there supposed to be any performance improvement using the -Djboss.vfs.forceNoCopy=true flag. I don't see any. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4124006#4124006 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4124006

16 years, 11 months

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[Design of POJO Server] - Domain interaction when there is scoping

by scott.stark＠jboss.org

The last problem I'm seeing with pulling the war deployer class loader creation into the WarClassLoaderDeployer is a failure for a war in a scoped sar to see classes from the sar. The sar has a separate ClassLoaderDomain resulting from a scoped sar LoaderRepositoryConfig being mapped by the HackClassloaderMetaDataDeployer. I'm not seeing any interaction between the sar ClassLoaderDomain and the default ClassLoaderDomain that the war class loader is associated with. I guess the war class loader needs to be using the same ClassLoaderDomain as the sar. The problem is, its not available in the DeploymentUnit. Only the ClassLoader and ClassloaderMetaData is. Although the domain name is in the ClassloaderMetaData, I don't have access to the ClassLoaderSystem to lookup the domain without setting it. I do happen to have access to this because the WarClassLoaderDeployer needs it for other reasons, but we need to make it easier for subdeployments to build class loader in the correct domain. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4123960#4123960 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4123960

16 years, 11 months

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jboss-dev-forums January 2008