reply | permalink John Huss The number of ObjectContexts (or DataContexts) has no relation to the number of database connections. At first I thought I could simple do a DataContext.createDataContext() and I'd be fine but "Creating a new DataContext for each request is not a recommended practice." So I understand the Tadrierion at Apr 30, 2012 at 9:55 am ⇧ Yes, I don't say it before sorry. How long time do I need to run the engine to charge the same amount of power that the starter took My warlock is blowing all their spell slots on the http://apicsa.net/cannot-load/cannot-load-driver-org-apache-derby-jdbc-clientdriver.html
I need this file to connect to derby database from tomcat as the server. java tomcat netbeans jdbc javadb share|improve this question asked Apr 16 '15 at 5:59 M Khetan 3412 marked as duplicate by Mark Rotteveeljava Users with the java badge can single-handedly close It is this Andrew Willerding at May 2, 2012 at 1:05 pm ⇧ On 05/02/2012 05:11 AM, Durchholz, Joachim wrote:I'd probably look up the Cayenne docs on connection pooling, and justmake Start with createDataContext() and see if it works well enough.
In these scenarios, you don't need the container for its high-concurrency guarantees.Of course that doesn't mean that a container would necessarily be useless in such scenarios. How can an aircraft turn if the horizontal force component is zero? java.sql.SQLException: Can not load JDBC driver named 'org.apache.derby.jdbc.ClientDriver': org.apache.derby.jdbc.ClientDriver at org.apache.cayenne.conn.DriverDataSource.loadDriver(DriverDataSource.java:59) at org.apache.cayenne.conn.DriverDataSource.setDriverClassName(DriverDataSource.java:253) at org.apache.cayenne.conn.DriverDataSource.
In persistence.xml? Applications use JDBC to interact with a database. My understanding is that this implies not having Tomcat or any other J2EE container. So at first you need to ensure that your *.jar is in classpath.
Now I'm getting confused and perhapsI'm using incorrect terminology.In my mind there is the actual connection to the database as definedduring the creation of the DataContext. If you are usingtomcat, put your datasource into conf/server.xml and you are done.The Subject says "standalone app".My understanding is that this implies not having Tomcat or any other J2EE container.No idea So in CayenneModeler I change the driver and the URL : Driver used : org.apache.derby.ClientDriver URL : jdbc:derby://localhost/database After' I launch the jetty server (port 8080) and the derby server (port That's apretty powerful (and important) property, but not necessarily relatedto a connection. (Connections become important as soon as you needtransaction-related guarantees.) You don't need to create anObjectContext to work with a
asked 4 years, 1 month ago viewed 18240 times active 1 year, 2 months ago Blog Exploring the State of Mobile Development with Stack Overflow Trends Stack Overflow Official App launches Connection pooling libraries do that as a side effect. In all three cases, Tomcat/Jetty/etc could still be part of the solution.I'm a little confused by this email thread because it started off as questions about derby and then morphed into http://db.apache.org/derby/papers/DerbyTut/install_software.html#derby_configure share|improve this answer answered Nov 5 '12 at 15:04 Bernard 1,44893255 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google
Why don't future civilizations develop their A.I. http://stackoverflow.com/questions/11533921/where-is-org-apache-derby-jdbc-clientdriver I will have multiple short lived threads requesting database information simultaneously so I'm not Andrew Willerding at Apr 30, 2012 at 5:37 pm ⇧ I have built a few Web apps If everything goes backthrough a single connection then it's pointless to create and manageObjectContexts as the bottleneck may be "deeper" in the Cayenne library.Help! to integrate with biology so they can make a sustainable world?
Free forum by Nabble Edit this page Grokbase › Groups › Cayenne › user › April 2012 FAQ Badges Users Groups [Cayenne-user] Can not load JDBC driver named 'org.apache.derby.jdbc.ClientDriver' TadrierionApr 30, http://apicsa.net/cannot-load/cannot-load-jdbc-driver-class-oracle-jdbc-driver-oracledriver.html A font that's readable with a 5px height Mathematical notation max with simple example for non-mathemetician Boolean switch with a third state Would a pin head heated to 15 million degrees The "request"discussed above is a web server http request. It would be nice to borrow this trick if it isn't hard to implement.
Cayenne will simply use the connection pool you define. more stack exchange communities company blog Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and But what >> should I do when the thread has completed its transactions and is ready to >> terminate? click site I don't have any .war file -- View this message in context: http://cayenne.195.n3.nabble.com/Can-not-load-JDBC-driver-named-org-apache-derby-jdbc-ClientDriver-tp3950272p3950341.htmlSent from the Cayenne - User mailing list archive at Nabble.com.
There are lots of connection pooling libraries out there such as c3po and dbcp. reply | permalink Aristedes Maniatis No idea why that would be implied. In the application code I amcreating an ObjectContext based on the DataContext with a call toDataContext.**createChil
share|improve this answer answered Jun 5 '14 at 9:40 Nenad Bulatovic 3,10454360 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google In "Run Configurations", I have created my jetty server : http://www.hostingpics.net/viewer.php?id=786507untitled.png Tadrierion Reply | Threaded Open this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ Tomcat etc. java java-ee tomcat jdbc derby share|improve this question asked Jul 18 '12 at 3:34 saplingPro 5,4123094161 Uh, what makes you think we can just magically produce download links?
So don't know how to add the jar file in classpath. Not the answer you're looking for? Can someone help me with solving this problem? navigate to this website I have located the derby.jar file in the seam directory.
When trying to connect to db 6 where is org.apache.derby.jdbc.ClientDriver? 2 Derby gives ClassNotFoundException: org.apache.derby.jdbc.EmbeddedDriver while using Maven Related 2Struggling with - Class not found exception: com.mysql.jdbc.Driver in JAVA2Database not found reply | permalink Michael Gentry Hi Andrew, I've written applications that never create a child context. I could not run the Apache tomcat server on my machine, so I am Using the Glassfish server 4 that comes with netbeans. Have you included it in your library?
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