Re: problem with ResultSet Object
Sachin: I think you have a design problem. Please,anyone correct me if you think i'm wrong. From inside a JSP page you should not access a recordset returned by an EJB. EJB components represent mostly bussines objects that contains rules and data access services. From outside the EJB (from a JSP page or remote client) the data that this component encapsulates should be accesed using services that returns serializable data types (objects thart starts with an uppercase or even another EJBS throught it's remote interface). In design terms, you are innecesarily coupling presentation layer with data layer if you return a ResultSet. Capture the resultset in private variables of your EJB and provide "getter"services if it is a stateful bean, or you can returna Hashtable with attributes if it is a stateless one. Hope this can help you. JJ - Original Message - From: sachin mahajan To: Orion-Interest Cc: sachin mahajan Sent: Thursday, February 14, 2002 1:50 AM Subject: problem with ResultSet Object Dear Sir Currently i am workingom the orion server. i have deployed my application properly. But i am facing some problem with transfering ResultSet object from my EJB to jsp . It error i am facing is this inside basedl The statement is oracle.jdbc.driver.OracleStatement@9617f825inside basedl The resultset is oracle.jdbc.driver.OracleResultSet@c72ff82aResultset is before returning :*** oracle.jdbc.driver.OracleResultSet@c72ff82a inside buildselect exception is com.evermind.server.rmi.OrionRemoteException: Error (de-)serializing object: oracle.jdbc.driver.OracleResultSet at com.evermind.server.ejb.EJBUtils.cloneObject(Unknown Source) at ConnectionPool_StatelessSessionBeanWrapper0.read(ConnectionPool_StatelessSessionBeanWrapper0.java, Compiled Code) can any body tell me how to solve this problem Waiting for your reply.. regds sachin
Re: problem with ResultSet Object
ResultSet is not a seralizable object. ResultSet is opened cursor to the database. If you want to pass ResultSet to client i.e jsp/servlet either conver the ResultSet data into you own custom objects or collection classes. The other alternate is to use CachedRowSet. CachedRowset is serializable object and contains all the information what ResultSet contains. You can get more information on RowSet at http://www.javaworld.com/javaworld/jw-02-2001/jw-0202-cachedrow.html -kesav - Original Message - From: sachin mahajan To: Orion-Interest Cc: sachin mahajan Sent: Wednesday, February 13, 2002 8:50 PM Subject: problem with ResultSet Object Dear Sir Currently i am workingom the orion server. i have deployed my application properly. But i am facing some problem with transfering ResultSet object from my EJB to jsp . It error i am facing is this inside basedl The statement is oracle.jdbc.driver.OracleStatement@9617f825inside basedl The resultset is oracle.jdbc.driver.OracleResultSet@c72ff82aResultset is before returning :*** oracle.jdbc.driver.OracleResultSet@c72ff82a inside buildselect exception is com.evermind.server.rmi.OrionRemoteException: Error (de-)serializing object: oracle.jdbc.driver.OracleResultSet at com.evermind.server.ejb.EJBUtils.cloneObject(Unknown Source) at ConnectionPool_StatelessSessionBeanWrapper0.read(ConnectionPool_StatelessSessionBeanWrapper0.java, Compiled Code) can any body tell me how to solve this problem Waiting for your reply.. regds sachin
Accessing HypersonicSQL
I have a few questions about accessing HypersonicSQL when acting as the data source for Orion. I am assuming the HSQL is running in the same JVM as Orion (the default configuration.) How do I access the HypersonicSQL data source from Java using JDBC, but outside the JVM of Orion ? Is there a dirver and URL to use ? How do I access the HypersonicSQL data source from Excel running on a desktop ? (i.e. Is there "native"ODBC access to HypersonicSQL when the client is running on a Windows desktop ?) A question on best practice; when updating a J2EE data source in batch (perhaps posting information at night) do I write a program that runs in the Orion JVM (how do I invoke it ?)or do I write a program that updates outside of Orion ? In both cases I would use EJBs (right ?)
Problem on Netscape Browser - Document Contained No Data
I have an application that uses a custom user manager and form-based authentication on Orion 1.3.8. Things work great with Internet Explorer, but with Netscape 4.7, the browser pops up a Document Contained No Data error when attempting to login - as if its not getting anything back from the server. If I turn security off and request the same URL, I get right in. Anybody have any idea what is causing this? Thanks in advance, Marc
Wow. It seems that 1.5.4 is released!!!
See subj.
RE: Debugging using JPDA, FATAL ERROR
No worries, mate. I blame sun, the error message is hopeless. geoff -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of [EMAIL PROTECTED] Sent: Thursday, 14 February 2002 6:54 PM To: Orion-Interest Subject: RE: Debugging using JPDA, FATAL ERROR Thanks Geoff, you were right. Tibor -Original Message- From: Geoff Soutter [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 13, 2002 11:34 PM To: Orion-Interest Subject: RE: Debugging using JPDA, FATAL ERROR Hmm, I seem to remember this one as well. Make sure you are using the java.exe from the JDK directory rather than the JRE, as in the latest 1.3.1 revision only the JDK java.exe seems to have access to JPDA (or at least, that's what I remember, YMMV) Geoff -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, 13 February 2002 8:10 PM To: Orion-Interest Subject: Debugging using JPDA, FATAL ERROR Hi, I'd need some urgent help on starting Orion with JDPA remote debugging enabled. I read through the docs and followed the instructions to start this way: java -classic -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000 -jar orion.jar But it came up with a FATAL ERROR : Transport dt_socket failed to initialize, rc = 509. FATAL ERROR in native method: No transports initialized abnormal program termination In case you have some ideas, share them with me. Thanks, Tibor
Re: Problem on Netscape Browser - Document Contained No Data
try an html meta tab spcifying noCache -Original Message- From: Marc Rabil [EMAIL PROTECTED] Date: Thu, 14 Feb 2002 14:50:56 -0500 To: Orion-Interest [EMAIL PROTECTED] Subject: Problem on Netscape Browser - Document Contained No Data I have an application that uses a custom user manager and form-based authentication on Orion 1.3.8. Things work great with Internet Explorer, but with Netscape 4.7, the browser pops up a Document Contained No Data error when attempting to login - as if its not getting anything back from the server. If I turn security off and request the same URL, I get right in. Anybody have any idea what is causing this? Thanks in advance, Marc -- ___ Get your premium email from http://www.ireland.com/email
getClass().getClassLoader().getResource(fileName) problem
Hi,
I tried to open a property file from within my
custom UserManager program, however, Orion was unable
to find my file. I just don't know where should I put
my property file so it can be located by the following
command:
props_ = new Properties();
try {
URL aURL =
getClass().getClassLoader().getResource(fileName);
InputStream in = (InputStream)aURL.openStream();
props_.load(in);
Thanks a lot.
__
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Re: problem with ResultSet Object
Hello Thanks. Can u explain me if i will use CachedRowSet object instead of ResultSet object. How my application is affected and it is scalable or not. sachin - Original Message - From: Dvornikov Victor [EMAIL PROTECTED] To: Orion-Interest [EMAIL PROTECTED] Sent: Thursday, February 14, 2002 1:48 PM Subject: RE: problem with ResultSet Object ResultSEt is not a serializable object. For RMI purpose use CachedRowSet object Take into account that this object is not for scalable applications! -Original Message- From: sachin mahajan [SMTP:[EMAIL PROTECTED]] Sent: 14 2002 6:51 To: Orion-Interest Cc: sachin mahajan Subject: problem with ResultSet Object Dear Sir Currently i am working om the orion server. i have deployed my application properly. But i am facing some problem with transfering ResultSet object from my EJB to jsp . It error i am facing is this inside basedl The statement is oracle.jdbc.driver.OracleStatement@9617f825 inside basedl The resultset is oracle.jdbc.driver.OracleResultSet@c72ff82a Resultset is before returning :*** oracle.jdbc.driver.OracleResultSet@c72ff82a inside buildselect exception is com.evermind.server.rmi.OrionRemoteException: Error (de-)serializing object: ora cle.jdbc.driver.OracleResultSet at com.evermind.server.ejb.EJBUtils.cloneObject(Unknown Source) at ConnectionPool_StatelessSessionBeanWrapper0.read(ConnectionPool_State lessSessionBeanWrapper0.java, Compiled Code) can any body tell me how to solve this problem Waiting for your reply.. regds sachin _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
Re: getClass().getClassLoader().getResource(fileName) problem
if your file.ini is in c:\orion try the following:
String path = c:\orion\file.ini;
Properties props = new Properties();
props.load(new FileInputStream(path));
- Original Message -
From: Min-Hua Luo [EMAIL PROTECTED]
To: Orion-Interest [EMAIL PROTECTED]
Sent: Friday, February 15, 2002 5:32 AM
Subject: getClass().getClassLoader().getResource(fileName) problem
Hi,
I tried to open a property file from within my
custom UserManager program, however, Orion was unable
to find my file. I just don't know where should I put
my property file so it can be located by the following
command:
props_ = new Properties();
try {
URL aURL =
getClass().getClassLoader().getResource(fileName);
InputStream in = (InputStream)aURL.openStream();
props_.load(in);
Thanks a lot.
__
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fyi: 1.5.4 still stacks rather than queues JMS messages
Re the problem reported a couple weeks back by Jorge Jimenez and confirmed by myself, I tested 1.5.4 to see if they had fixed this problem, but it's still there. Just set max-instances to 1 and load up with a lot of messages, it works just like a stack. Doh. Maybe I'll have time to put this into Bugzilla next week... Is _everyone_ using a third party JMS with Orion? geoff
