[JBoss-user] [EJB/JBoss] - Message driven bean and jboss scheduler

2004-08-18 Thread vying
Hi all, I am wondering how to use Jboss scheduler service in MDB,I have a task to get message from MDB clients and process them nightly.How can I achieve this by using Jboss scheduler?Since the onMessage() is called my JMS container and perform() is called by jboss MBean server when time o

[JBoss-user] [Persistence & CMP/JBoss] - Performance issues of using BLOB in CMP

2004-08-09 Thread vying
Hi all, I am wondering if you guys have experience on how CMP can handle BLOB type,Since I plan to use a BLOB type to store large file data(100MB-1GB) into a table using CMP and then read it back later on.I am trying to be clear about any potential performance hit before I do that approach. Now

[JBoss-user] [Performance Tuning] - performance issues with huge file upload

2004-08-08 Thread vying
Hi all, My project involved a huge file(100MB) upload process in front end,then front end client sends the huge file stream to Message driven bean for processing the upload asynchrounsly and finally the MDB invokes file parser and other EJB components to feteh the the processed file data

[JBoss-user] [Messaging, JMS & JBossMQ] - Re: Problem with sending huge message in jboss

2004-08-04 Thread vying
Thank you ! But what do u mean 'message interally to JVM',another porblem here is that the jboss was preocupied during the course of sending this large message, it doesn't seems to be the asynchrouns nature of JMS,Also once server is down,I did n't notice themessage redelivery.Also do u know th

[JBoss-user] [Messaging, JMS & JBossMQ] - Problem with sending huge message in jboss

2004-08-04 Thread vying
-durability="Durable" * acknowledge-mode ="Auto-acknowledge" * * @jboss.destination-jndi-name name = "queue/ImportMDBQueue" * @jboss.container-configuration name ="Standard Message Driven Bean" * The following is error in the log file: Transaction T

[JBoss-user] [Persistence & CMP/JBoss] - performance issues updating data using CMP

2004-08-03 Thread vying
Hi,all, I am doing a project which upload a file and then insert the parsing result into the DB(Oracle 9i). The situation is like this,there's main lineitem table and another 2 dependent tables,Each mainline will have a couple of vlaues to be inserted in the dependaent tables. The obser

[JBoss-user] [Persistence & CMP/JBoss] - Database trigger and Jboss Caching

2004-07-13 Thread vying
Hi all, I have a question about how jboss handle caching mechnisms while involving data changes from database by triggers.Is there any limits set by Jboss due to using a Database trigger in a transaction? Can we use Database trigger when we use Jboss for EJB caching?Any thing we should

[JBoss-user] [EJB/JBoss] - Database trigger and JBOSS EJB caching

2004-07-13 Thread vying
Hi all, I have a question about how jboss handle caching mechnisms while involving data changes from database by triggers.Is there any limits set by Jboss due to using a Database trigger in a transaction?Any suggestions,Thanks View the original post : http://www.jboss.org/index.html?module

[JBoss-user] [Persistence & CMP/JBoss] - Re: Is this a jboss bug (entity setter mehod)?

2004-05-06 Thread vying
Alex, I think the container is to handle the clearance before setting new ones whatever compound Pk exists .So will it be enhanced by Jboss in the near future?Thanks View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3833950#3833950 Reply to the post : http://

[JBoss-user] [Persistence & CMP/JBoss] - Re: Is this a jboss bug (entity setter mehod)?

2004-05-05 Thread vying
Yes, it's a 1-to-many relationship.where B has a compound primary key. say A's Primary Key is PK_A, B's Primary Key is (PK_A,ColB),where ColB is another column in Table B. The scenario like this: say table B's structure is like:(PK_A,ColB,ColB2) and we have a row of old data here in table B:(1