Any JPA support in Oracle RDF DB?

I see EclipseLink has JPA extension to support Oracle Spatial Graph. Does it support RDF graph database?
Thanks.

We have persistent layer implemented by JPA. I understand JPA came out with relational DB in mind. But I believe this is an important feature which graph DB needs to consider if it want to be adopted widely. Neo4j has some sort of JPA support. Oracle EclipseLink already has extension to the spatial graph data. Empire http://github.com/clarkparsia/Empireis an implementation of the JPA for RDF and the Semantic Web. I wish Oracle has similar thing as soon as possible.
Thanks.

Similar Messages

Implementing Oracle RDF for existing databases.

Hi,
I am a newbie to RDF. I am supposed to dio a PoC for a Oracle RDF. I donot know what is RDF [i have learnt it now], OWL, SPARQL etc...I need advice from experienced people about how to start with a simple applications etc...
Please let me know if there is any good step by step tutorials and sample code. I have searched the entire web and i couldn't get a good sample code for Oracle RDF projects.
May i know whether there is any such projects gets implemented in Oracle RDF or is that just a area for research?
Why do we need Jena API? Why should i opt for Oracle RDF? By what means it is going to give me a performance boost? etc.. are some unanswered questions i still have in my mind.
Thanks much in advance for your time....
Regards,
Sakthi.

Hi Sakthi,
My name is Jorge Barba, working in Support for Semantic Technologies.
We have a set of notes that I can share with you so you can start implementing simple ontologies, I can also present to you a 1hour and a half presentation via remote web conference of Semantics and Oracle. If you are interested please send me an email at [email protected]
Regards!
Jorge

Details on TAF support in Oracle AS 10g

Hi experts,
I'm currently writing a Master's Thesis on High Availability of Applications based on Suns JEE platform.
With Oracle being one of the big players in this market I'm going to investigate the features of the Oracle product stack and compare it with other solutions including opensource.
At the moment I'm looking for details on TAF-support in Oracle AS 10g. Lets assume one has installed the latest release of the Oracle 10g database in a RAC configuration on two or more physical nodes to store the applications data. Lets further assume one has set up the latest release of the Oracle AS 10g on different hosts building an AS farm with clustered OC4J-instances. Now one would like to connect a JEE application running within these OC4J-instances to the RAC database.
Therefore one can configure an OC4J datasource to use a service definition supporting network failover and transparent application failover (TAF) specified in the tnsnames.ora on the AS hosts or directly describe the service in the data-sources.xml. To my knowledge only datasources configured to use the OCI client can be used with TAF. Everything right so far?
Now the interesting part. The best what TAF can do is automatically reconnect to the next known database node if its current node is not reachable or fails, and continue processing an open cursor for select so that the application can continue to use its current connection.
If the application is running a database transaction it can only be rolled back and rerun after failover.
In a good old plain Java application one had to implement the OracleOCIFailover interface and register a callback with the db connection in order to receive failover events. Therefore you need to process the query in a different thread.
In a JEE server only the container should be responsible for creating threads, or? How does the Oracle AS support TAF? How can a user application get notice of a failover and react appropriately. Is the behaviour always the same no matter one decides to implement the data access via simple DAOs or entity beans (CMP/BMP)? I assume it is safe to use a connection pool and container will take care of the necessary cleanup jobs, right? Will the complete connection pool be reconstructed or only connections to the failed node?
Does the application server internally use these OCI callbacks and wrap them up into special Exceptions? Is there anything an application programmer has to do in order to make his data access code ready for TAF, especially in case of failover while the db is processing transactional code?
Any insights and/or code snippets would be greatly appreciated!
Ah, one last question. From a HA perspective is it generally a bad idea to put application logic into the database (use CDM RuleFrame and so on) as there is no support in preserving package states or do you think this makes no difference as one has always to repeat everything since the last commit point no matter in which tier the code resides?
During the next days Im going to set up the above environment for testing. A 10.0.2.1 RAC on RHE4 is already up and running fine. AS 10.1.3.0.0 on RHE4 is following today or tomorrow.
Many thanks for all answers!
Regards,
Eric

Hi,
well, I thought I could dig into the OC4J documentation before installing the server. After reading the OC4J Service Guide for 10.1.2 and 10.1.3 I'm a little bit confused.
First I read the 10.1.2 Service Guide and almost everything seemed to be clear. I found a lot of answers to the questions above. I'd like to sum them up. Please correct me if I got something wrong!
- TAF only works on top of OCI driver
- TAF can be used with connection pooling
- OC4J takes care of connection pool cleanup (OC4J and OCI Pool)
These two pools are mentioned. It's not clear to me how they work together. Do one of you know some source where I can get more information about this?
- after a failover all connections in the pool are checked by OC4J and only alive ones will survive
- in case of a failover TAF issues an exception
- the application has to catch this exception and acknowledge with a rollback, after that the transaction can be restarted (this seems to be the responsibility of the applications code, oc4j will not replay something automatically; If I got it right, CMP entity beans will be an exception to this rule - there OC4J will proceed transparently...)
- the application can use OCI callbacks to customize the failover behavior (well I would like to see some source code example here, as I can't imagine how this could look like)
After that I read the 10.1.3 service guide. The section about datasources in conjunction with HA is much shorter. Besides TAF new? mechanism is introduced, namely Fast Connection Failover (FCF). There is not much information about it but references to the JDBC Guide, because FCF is a feature of the implicit JDBC connection cache. Where cache seems to be just another word for pool.
By the way, the example on p. 4-36 looks wrong at first glance. Enabling FCF and setting:
<property name="fastConnectionFailoverEnabled" value="false"/> ???
Seems to be a typo in the docu, or?
I got the impression, that the text is written as if FCF being TAF's successor, without explicitly saying this. Is this right?
So I proceeded reading the JDBC Developer Guide to lean more about FCF. Here is what I learned:
- since 10g available
- FCF is driver independend (you can also use the thin driver)
- prerequisites are implicit connection cache (pool) enabled, ONS must be configured
- in case of a failover the transcation will be rolled back automatically (not by the application); whereas using TAF you have to use a rollback to acknowledge the error
- only one exception ORA-17008 to catch
- application has to obtain a new connection from the cache (pool), where as using TAF the old connection object can be used, and resend the transaction (same as with TAF)
So when to use what? The comparison on p. 27-8 was not very helpful to find an answer to this question.
On p. 28-1 one can read that TAF does not work with the OCI Connection Pool. That's seems to be contradictory to the statement in Service Guide of 10.1.2 that OC4J takes care of both pools (OC4J and OCI). Or has something changed in 10.1.3 in that regard? May be this is because of the changes in Cache or Pool Management?
What is the advantage of using TAF within OC4J in 10g, if there is any?
What about select statements with FCF? You can only read about transactions. I'd assume the application would get the same exception executing a query (ORA-17008) as executing a transaction, right? So TAF should have the advantage of transparently proceeding selects after a failover. Am I right?
I'd love to see more examples and comparisons of TAF and FCF.
Regards,
Eric

What are the API's and OS Supported by Oracle TimesTen

1.) What are all the API supported by oracle TimesTen?
is the below are correct and whether other than this is there any other API supports oracle TimesTen
JDBC,
ODBC,
OLAP,
ADO.net,
C++...............
2.) What are the Platform supports?
is the below are correct and whether other than this is there any other OS supports oracle TimesTen
Linux x86-32 and x86-64:
Oracle Linux 4 and 5
Red Hat Enterprise Linux 4 and 5
SUSE Enterprise Server 10 and 11
MontaVista Linux CGE 5.0 and 6.0
Asianux 3.0
Microsoft Windows x86-32 and x86-64:
Windows XP, Windows Vista, Windows Server 2003, Windows Server 2003 Release 2, Windows Server 2008, Windows 7
Solaris SPARC 64-bit:
Oracle Solaris 10
Solaris x86-64:
Oracle Solaris 10
IBM AIX 64-bit:
AIX 6.1 and 7.1
Solaris SPARC 32-bit (client only):
Oracle Solaris 10
IBM AIX 32-bit (client only):
AIX 6.1 and 7.1
3.) What is the latest Version in Oracle TimesTen?
4.) Maximum number of rows in a table. 2 Power 28 = 268,435,256 for 32 Bit / (2 power 31-1) = 2,147,483,647 for 64 Bit
if the Row value exceeds more than the specified value what will happen ? whether we need to have multiple tables
Say TableA reaches 268,435,256 values and if few more rows are added then the value can be kept in new table TableB and so on..... or how?
Thanks

Dear 933663,
1. What are all the API supported by oracle TimesTen?
JDBC
ODBC
ADO.net
OCI
PRO*C
+
PL/SQL
SQL
2. What are the Platform supports?
TimesTen 11.2.2.2.0 supports - Windows (32-bit, 64-bit), Linux x86 (32-bit, 64-bit), Solaris Sparc (64-bit), Solaris x86 (64-bit), IBM AIX Power (64-bit) (http://www.oracle.com/technetwork/products/timesten/downloads/index.html)
The detailed information I could find only in 11.2.1 documentation (http://docs.oracle.com/cd/E18283_01/timesten.112/e13063/install.htm):
Microsoft Windows 2000, Windows XP, Windows Vista and Windows Server 2003 and 2008 for Intel IA-32 and EM64T and AMD64 CPUs.
Asianux 2.0 and 3.0 for Intel IA-32 and EM64T and AMD64 CPUs.
SuSE LINUX Enterprise Server 10 for Intel IA-32 and EM64T and AMD64 CPUs.
SuSE LINUX Enterprise Server 10 for Itanium2 CPUs
Solaris 9 and 10 for UltraSparc CPUs
Solaris 10 for AMD64 CPUs
Red Hat Enterprise Linux 4 and 5 for Intel Itanium2 CPUs.
Red Hat Enterprise Linux 4 and 5 for Intel IA-32 and EM64T and AMD64 CPUs.
Oracle Enterprise Linux 4 and 5 for Intel IA-32 and EM64T and AMD64 CPUs.
MontaVista Linux Carrier Grade Edition Release 4.0 and 5.0 for Intel IA-32, EM64T and AMD64 CPUs.
HP-UX 11i v2 and 11iv3 for PA-RISC
HP-UX 11i v2 and 11iv3 for Itanium2
AIX 5L 5.3 and 6.1 for POWER CPUs
3.) What is the latest Version in Oracle TimesTen?
11.2.2.2.0 (http://www.oracle.com/technetwork/products/timesten/downloads/index.html)
4) Maximum number of rows in a table. 2 Power 28 = 268,435,256 for 32 Bit / (2 power 31-1) = 2,147,483,647 for 64 Bit
Actually, I couldn't find any information about rows limits for TimesTen tables and I've never faced with this problem.
Best regards,
Gennady

Does weblogic server 10.3.6 & 10.3.5 supported on oracle linux 5.8 ?

I am trying to install weblogic server 10.3.6 on Oracle linux 5.8 (64-bit) platform. While creating domain , it does not take any input in password & conform password fields on "configure administrator username and password page". The field remains blank. I am stuck at this point and not able to create domain. The same issue is with weblogic 10.3.5 server. The java i used is jdk1.7 update 3 and jdk 1.6 update 27. In Both the cases i am not to create domain.
Can anyone of you tell me if weblogic 10.3.6 is supported on Oracle linux 5.8 platform. If it is supported any idea how to resolve this issue?
Thanks in advance,
Padma

Yes. Please refer
System Requirements and Supported Platforms for Oracle WebLogic Server 10.3 ( xls)
http://www.oracle.com/technetwork/middleware/ias/downloads/fusion-certification-100350.html

Oracle RDF / Joseki : issue with large literals

Hi,
I have been using Joseki to query an Oracle RDF model. There seems to be an issue with large literals (according to a few unreliable tests, I would say this concerns literals around and over 4000 chars).
Here are the two potential behaviours :
First case:
If the results contains several lines, one of which contains an overly large literal, there are NO exception on the server side, but the resulting xml is incomplete.
It misses the "line" containing the large literal, and the xml is stopped there (which means that it also misses the closing </results> and </sparql>. In my case, I am using the results through Jena's sparqlService, which means I get this message :
XMLStreamException: Unexpected EOF; was expecting a close tag for element <results>
+at [row,col {unknown-source}]: [31,0]+
Second case:
If the query only returns one line which contains an overly large literal, the client receives a simple *"HttpException: 500 Internal Server Error"*
Here is the error message from my server :
+INFO [[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'] (SPARQL.java:165) - Throwable: we+
blogic.jdbc.wrapper.Clob_oracle_sql_CLOB cannot be cast to oracle.sql.CLOB
java.lang.ClassCastException: weblogic.jdbc.wrapper.Clob_oracle_sql_CLOB cannot be cast to oracle.sql.CLOB
at oracle.spatial.rdf.client.jena.OracleSemIterator.getNodesFromResultSet(OracleSemIterator.java:579)
at oracle.spatial.rdf.client.jena.OracleSemIterator.next(OracleSemIterator.java:445)
at oracle.spatial.rdf.client.jena.OracleLeanQueryIter.moveToNextBinding(OracleLeanQueryIter.java:135)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.nextBinding(QueryIteratorBase.java:98)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIterConvert.moveToNextBinding(QueryIterConvert.java:56)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.nextBinding(QueryIteratorBase.java:98)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIterRepeatApply.moveToNextBinding(QueryIterRepeatApply.java:76)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.nextBinding(QueryIteratorBase.java:98)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIterProcessBinding.hasNextBinding(QueryIterProcessBinding.java:54
+)+
at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:69)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIterConvert.hasNextBinding(QueryIterConvert.java:50)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:69)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:30)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:69)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorWrapper.hasNextBinding(QueryIteratorWrapper.java:30)
at com.hp.hpl.jena.sparql.engine.iterator.QueryIteratorBase.hasNext(QueryIteratorBase.java:69)
at com.hp.hpl.jena.sparql.engine.ResultSetStream.hasNext(ResultSetStream.java:62)
at org.joseki.processors.SPARQL.executeQuery(SPARQL.java:309)
at org.joseki.processors.SPARQL.execQueryWorker(SPARQL.java:288)
at org.joseki.processors.SPARQL.execQueryProtected(SPARQL.java:126)
at org.joseki.processors.SPARQL.execOperation(SPARQL.java:120)
at org.joseki.processors.ProcessorBase.exec(ProcessorBase.java:112)
at org.joseki.ServiceRequest.exec(ServiceRequest.java:36)
at org.joseki.Dispatcher.dispatch(Dispatcher.java:59)
at org.joseki.http.Servlet.doCommon(Servlet.java:177)
at org.joseki.http.Servlet.doGet(Servlet.java:138)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3594)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2202)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2108)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1432)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
Would there be any fix / workaround ?
Please let me know if you need further information / tests.
Thanks,
Regards,
Julien

Thanks for your reply.
While trying to build up a small test case, I found out why there were discrepancies between the two cases I described.
Indeed, usually, the two cases return the same thing (no exception on the server side, but incomplete resulting XML).
The exception I described happened when I tried something else. Since I saw that issues were coming from long literals, I used fn:string-length (ARQ) to figure out how long they were.
The test case resulting in the CLOB-cast-exception is:
- too large literal
- only one result "line" containing this literal
- usage of fn:string-length (which does not change the behaviour in other cases (i.e. no long literals or/and several lines).
Anyway, you will receive the other test cases shortly.
Thanks,
Regards,
Julien

NLS SUPPORT FOR ORACLE 8I

I am trying to use the NLS support of Oracle 8i on windows
Nt/2000 platforms. I have tried configuring the database
characterset and the national character set as 'IN8ISCII' - the
one prescribed in the NLS documentation for India territory and
Hindi as NLS Language and territory parameters. I have also
tried configuring them as 'UTF8' a character set prescribed for
unicode /universal 8 bits ASCII character sets but i am not able
to insert any rows with these charactersets in NCHAR or NVARCHAR
columns. if i try to insert them in regualr char pr varchar
columns i can insert in the ascii formats and I have to retreive
them on front end through different mask format fonts.
If any one have tried the NLS support pls let me know how to
insert the records and retreive thenm in the national language..
Thanks in advance..
Manoj Mehta

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Glen Fafara ([email protected]):
Will Oracle 8i run on an Alpha based machine? I am running Redhat Linux 6.2.
Thanks
Glen<HR></BLOCKQUOTE>
hi:
I am coming from Taiwan,
There's a problem,I installed O8iee(linux)
on Redhat Linux 6.2,when($svrmgrl)...
error occure:
Oracle Server Manager Release 3.1.6.0.0 - Production
Copyright (c) 1997, 1999, Oracle Corporation. All Rights Reserved.
ORA-03113: end-of-file on communication channel
would you help me
my e-mail:[email protected]
thanks a lot.

Is there any known problem using Oracle SQL Developer 3.0.04 with Java 1.7?

I'm new to Oracle. I have installed Oracle SQL Developer 3.0.04 and Java 1.7. When I run Oracle SQL Developer, I will get the window Running this product is supported with minimum Java version of 1.6.0_04 and a maximum version less than 1.7. This product will not be supported....
Is there any known problem using Oracle SQL Developer 3.0.04 with Java 1.7?
I have already downloaded Java 1.6 but don't know whether I need to uninstall Java 1.7 first. If don't need to uninstall Java 1.7, how can I set Oracle SQL Developer to run with Java 1.6?
Thanks for any help.
Edited by: 881656 on Aug 25, 2011 11:22 AM

Hi,
One prior post discussing the use of Java 7 is:
SQL Developer 3.0 and Java SE 7?
There is no need to uninstall any Java version (except if you have disk space constraints) and no problem switching between Java versions. This may be controlled in the sqldeveloper.conf file in your ...\sqldeveloper\sqldeveloper\bin directory via the SetJavaHome line. For example:
#SetJavaHome ../../jdk
SetJavaHome C:/Program Files/Java/jdk1.6.0_26
#SetJavaHome C:/Program Files/Java/jdk1.7.0Regards,
Gary Graham
SQL Developer Team

Java multithreading support in Oracle JVM

Dear all,
I have some questions and observations regarding multithreading support in Oracle JVM. I have some java code that is stored in the database and is multithreaded (in separate threads I run a plsql procedure that does a lot of precessing). If I run the code with my standalone JVM it works like a charm, everything gets executed in separate threads. But if I store the code in the database and run it (with the custom JVM Oracle implemented for the server) it does not do any threading, all I have is a single thread that runs everything sequentially.
The logic is this: using JDBC I create a connection, get a parameter (number of threads) and then launch the threads (each thread creates its own connection and runs the plsql procedure). No resource is shared (I have no synchronized code, I do not yield).
My question is: does Oracle JVM supports multithreading or not? If yes, how to achieve it? Maybe there is something handled in JDBC? (although my code useses JDBC is not multithreaded) If this is not possible with java, do you now how to run something (oracle function, procedure) concurrently with PLSQL? (I tried with DBMS_JOBS but it does not work on all my databases and our DBAs discourage the use of them). Performing multithreading my launching different sqlPlus processes is not an option (as we have no security standard regarding the authentication -> connection is made by specifying in clear text the user and password).
I wanted to use java because is more simple, secure (the connection is already established as the classes are stored in the database) and easy to maintain (until now we use different scripts which run on Unix and Windows and this leads to double work).
The Oracle versions I use are 10g and 11g.
Thank you all very much for your time
Just the best,
Don

don wrote:
My question is: does Oracle JVM supports multithreading or not? If yes, how to achieve it? Maybe there is something handled in JDBC? (although my code useses JDBC is not multithreaded) If this is not possible with java, do you now how to run something (oracle function, procedure) concurrently with PLSQL? (I tried with DBMS_JOBS but it does not work on all my databases and our DBAs discourage the use of them). Performing multithreading my launching different sqlPlus processes is not an option (as we have no security standard regarding the authentication -> connection is made by specifying in clear text the user and password).
(Obviously the other post answers your question.)
If I am reading that correctly then you have a management issue - not a technological one.
You have a task to complete, presumably doing it efficiently is something that the company wants.
And you have two alternatives both of which the DBAs are not allowing you to use.
So at that point it is up to management to insist that the DBAs provide specific technological reasons (not hand waving) why those solutions are not suitable. And they should also be required to provide the outline of an alternative that is suitable.
Besides that you might consider why your solution cannot be implemented entirely in a single threaded PL/SQL routine. The fact that is harder is not a reason when the point of the excercise is to create something that is more efficient.

Oracle rdf protege plugin and owl

Does the oracle rdf plugin for protege support writing owl files into oracle rdf storage backend? I tried saving a new protege owl project, and get stack dumps (see below).
Thanks
In saveKnowledgeBase 1
java.sql.SQLException: Io exception: The Network Adapter could not establish the
connection
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java
:100)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java
:130)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java
:215)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:378)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:
434)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtensio
n.java:31)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:772)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at oracle.ORDFFrameCreator.finish(ORDFFrameCreator.java:349)
at edu.stanford.smi.protegex.storage.walker.protege.ProtegeFrameWalker.w
alk(Unknown Source)
at oracle.OKnowledgeBaseFactory.saveKnowledgeBase(OKnowledgeBaseFactory.
java:177)
at oracle.OImportExportPlugin.exportProject(OImportExportPlugin.java:124
at oracle.OImportExportPlugin.handleExportRequest(OImportExportPlugin.ja
va:109)
at edu.stanford.smi.protege.ui.ProjectManager.exportProjectRequest(Unkno
wn Source)
at edu.stanford.smi.protege.action.ExportPluginAction.actionPerformed(Un
known Source)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown
Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
null : : : http://www.w3.org/1999/02/22-rdf-syntax-ns#type : http://protege.stan
ford.edu/system#owl_ontology
java.lang.NullPointerException
at oracle.ORDFFrameCreator.finish(ORDFFrameCreator.java:403)
at edu.stanford.smi.protegex.storage.walker.protege.ProtegeFrameWalker.w
alk(Unknown Source)
at oracle.OKnowledgeBaseFactory.saveKnowledgeBase(OKnowledgeBaseFactory.
java:177)
at oracle.OImportExportPlugin.exportProject(OImportExportPlugin.java:124
at oracle.OImportExportPlugin.handleExportRequest(OImportExportPlugin.ja
va:109)
at edu.stanford.smi.protege.ui.ProjectManager.exportProjectRequest(Unkno
wn Source)
at edu.stanford.smi.protege.action.ExportPluginAction.actionPerformed(Un
known Source)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown
Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
WARNING: java.lang.NullPointerException -- OImportExportPlugin.handleErrors()

dlrubin
did you ever figure out your problem? I'm having the same error.
java.sql.SQLException: Io exception: The Network Adapter could not establish the
connection
Not 100% sure where my error is coming from, if its a classpath issue or something else. Just wanted to see if you came up with a solution. Thanks

"Your browser is not supported by Oracle BI Presentation Services"

Hi,
I have installed obiee11.1.1.5 on windows 7 and i am using Firefox 12.0 latest version.When I am trying to open analytics through firefox12.0 i am getting warning like “Your browser is not supported by Oracle BI Presentation Services” and it is opening in IE but charts are not displayed. Can any one tell me the solution for this?
Edited by: Uma on Apr 26, 2012 5:24 AM

Hi Uma,
good that your issue is resolved. we are generally modifying/adding the header to override the existing version to previous version, so instead of using the FF10+ header we are just modifying it to FF9 inorder to make it work
The UA string of Firefox itself is broken down into four components:
Mozilla/5.0 (platform; rv:geckoversion) Gecko/geckotrail Firefox/firefoxversion
Mozilla/5.0 is the general token that says the browser is Mozilla compatible, and is common to almost every browser today.
platform describes the native platform the browser is running on (e.g. Windows, Mac, or Linux). Note that platform can consist of multiple "; "-separated tokens. See below for further details and examples.
rv:geckoversion indicates the release version of Gecko (such as "10.0"). From Firefox 5.0 and Gecko 5.0 onwards, geckoversion is the same as firefoxversion (described below).
Gecko/geckotrail indicates that the browser is based on Gecko. geckotrail is "20100101" in desktop release builds and does not represent the actual build date of the browser. For desktop development builds, geckotrail presently indicates the build date of the browser, but this is likely to change in the future. Starting February 1st 2012, geckotrail is the same as geckoversion and firefoxversion in Firefox for Android with a native front end (aka. Fennec Native).
Firefox/firefoxversion indicates the browser is Firefox, and provides the version (such as "11.0").
Thanks,
RM

How do you query Oracle RDF database using Java program?

Does anyone know how to get data out of the oracle RDF database using Java?
I'm running the following java code and it returns basically null values. My guess is that the get_triple() function returns a dataset other than resultset. I've tried searching the Oracle web site. Am I supposed to be using CLOB object? Any help would be appreciated. Thanks
sql = "SELECT a.triple.GET_TRIPLE() AS triple FROM family_rdf_data a";
ResultSet rs = stmt.executeQuery( sql ) ;
while ( rs.next() )
System.out.println( rs.getString(1) ) ;
rs.close() ;

get_triple() returns an object, and the code would be different from the code of retrieving a string. Some sample code for retrieving objects is at http://www.oracle.com/technology/sample_code/tech/java/sqlj_jdbc/files/advanced/advanced.html
get_subject(), get_property() return strings so the code below should work. get_object() returns a CLOB so different handling would be required and there is some sample code at the link above.
Melli

InboundThreadCount supported in oracle bpel 10g

Hi ,
I want to know whether the InboundThreadCount="N" for MQAdapter is supported in oracle bpel 10.1.3.3.
Thanks,
S.Vishal

Hi All,
Any updates on this please, would be a great help.

Languages Supported in Oracle Forms

Hi,
Can anyone tell me which languages are supported in Oracle forms ,or with UTF8 characterset i can make forms6i to work for all languages.
Please correct me ...
Regards,
Sandeep

I don't think this feature is feasible for forms.
Quoting the documentation from
http://download.oracle.com/docs/cd/B28359_01/server.111/b28310/manproc002.htm
Database Resident Connection Pooling (DRCP) provides a connection pool in the database server for typical Web application usage scenarios where the application acquires a database connection, works on it for a relatively short duration, and then releases it.
Forms keeps a permanent connection to the database, so a connection pool isn't gonna help you in any way.
cheers

Does Oracle Support Running Oracle 10 Database on VMware ?

hi experts,
I have 10g Enterprise on a Windows 64-bit Enterprise platform.
I know this is a recurring question - whether or not Oracle really supports customers that run Oracle databases in a VMWare environment.
I found a document on My Oracle Support/metalink that is dated 2007. It says VMWare is not supported.
But I think the situation may have changed since 2007.
So can anyone point me to a document that shows whether Oracle does/does not support running Oracle databases on VMware - not Oracle's VMware product but VMWare, inc. ?
Thanks for any current information. John

Hans Forbrich wrote:
1) Oracle has their own virtualization solution;
2) VMWare is a brand, not a product. Your question is best asked in context of a product;
3) Oracle will provide you with support as long as you can reproduce the problem in a non-VM environment.
That last means - it is up to you to prove that the problem is not related to VMWare environment.I have never seen any scenario where Oracle demands you to prove that the problem is not related to VMware.
If its their suggested solution does not work, and they think i should, they want you to migrate it to a physical machine and test there, however this has never happend, at least not for us. We have around 100 databases in VMware, and the common talk (even from Oracle people that visits us) is that the document is only there IF THERE BY SOME CHANCE IN THE WORLD WOULD COME TO A PROBLEM FOR A COMPANY, WHERE VMWARE IS THE PROBLEM, AND ORACLE CANT HELP, they have to have a get-out clause in terms of support against VMware.

Any JPA support in Oracle RDF DB?

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