Ewald

when trying @Clob String dna; I get "Clob cannot be resolved to a type" when trying @Column(columnDefinition="LONGTEXT") // not LONGTEXT DNA as you suggest above String dna; it works. A field with type LONGTEXT is generated which can hold 2exp32-1 bytes. That should be sufficient for the sequences I am trying to collect.

I am using MySQL the field is defined as Field type null key default number int NO PRI NULL if I define an autovalue key MySQL defines it as Field type null key default extra nStackID int NO PRI NULL auto_increment

I have managed to connect my OpenXava project to an existing database. The ID properties of the existing fields are set to "Autovalue" i.e. when you add a new record, the database automatically generates an ID value. In order to use the existing fields in my OpenXava application do I have to change the field definition in the database or is there a more elegant way?

I am working on an application which will store DNA sequences which will have a length of the order of 50.000 characters. How do I create a suitable field in the application? I tried @TextArea with data type String but the field size seems to be limited. When I try to save a 32.767 character sequence I get an error. If I go into the database and change the data type of the field to LONGTEXT it works. The openxava application creates a field with VARCHAR data type. I guess my question is: how do I...

I don't speak spanish unfortunately. My project works now with MySQL. The persistence file above didn't help in my hands though, The error I got with that one was "System Error". I went back and started from scratch again: * deleted project and all files in the workspace * created a new project * created a class * followed https://www.openxava.org/OpenXavaDoc/docs/mysql_en.html but this time edited the context.xml file with a text editor and not in eclipse * in eclipse selected Project > Update Maven...

I went back and started from scratch: * Removed the openxava project folder * removed ~/.openxava * downloaded openxava-studio-7-r2-linux.tar.gz * extracted to /openxava-studio-7-r2-linux * started the application * created a new openxava project named pha * created a new class phage * followed https://www.openxava.org/OpenXavaDoc/docs/mysql_en.html to connect to MySQL * rebuilt the project via RunAs>MavenInstall The MySQL database is running, I can control it with phpMyAdmin. The phadb database...

I have installed a MySQL database and can manage it through phpMyAdmin. I created a database, crated a new OpenXava Project and followed https://www.openxava.org/OpenXavaDoc/docs/mysql_en.html to modify pom.xml and context.xml. Then rebuilt the project, created one model with essentially the same code as in the "getting started" tutorial. When I run the project there is no connection to the MySQL database (url is correct as well as user and password) Here is the stack trace Nov 17, 2022 6:01:35 PM...

How can I backup a whole project that can be imported into eclipse later? The purpose of this would be to save a certain development stage as fallback. How can I import it back into eclipse would be the next question of course