JDeveloper

How to tune JDeveloper memory settings to get better performance?

Thats natural that JDeveloper out of the box comes with minimal settings for resource usage. And obviously it is far away not enough for comfortable usage. So there are at least couple of settings that needs to be tuned right after installation: Java heap size Open file %MW_HOME%/jdeveloper/ide/bin/ide.conf and add/change following two lines Java MaxPermSize Open file %MW_HOME%/jdeveloper/jdev/bin/jdev.conf and add/change following…

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JDeveloper

After macOS High Sierra system update JDeveloper does not start. How to fix it?

It happens, that each time when I push MacOS High Sierra regular updates, my JDeveloper does not start any more. The fix looks very simple, just need to delete JDeveloper system directory. Sounds frightening, but do not be confused because of naming. By fact it is just operational directory where JDeveloper keeps various temporary and configurational stuff. It is even…

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ADF, JDeveloper

How to deploy ADF application with different name using JDeveloper?

Sometimes there might be a case, when development team shares one WebLogic server instance and each developer needs to deploy and test the same application at the same time. Or whatever the reason it is, there are some simple steps needed to be accomplished in JDeveloper to have another instance of the same application just with different context root. Assuming…

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ADF, JDeveloper

JBO-26041: Failed to post data to database during “Update”… What might be the reason?

Problem: Exception during data save is thrown: oracle.jbo.DMLException: JBO-26041: Failed to post data to database during “Update”: SQL Statement “UPDATE… It might be followed by similar to this one: java.sql.SQLException: Fail to construct descriptor: Unable to resolve type “NVARCHAR2″… Solution: Check if  SQLType attribute of an entity/view object attribute being updated is correct. For example it can be set to…

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ADF, Continuous Query Notification, JDeveloper

Override inputListOfValues component model and Continuous Query Notification sample in ADF

Requirement: Standard ADF inputListOfValues component should behave like this: When pressed “Search”, action should stop and wait untill any change happen in DB table being searched When change happen in DB table, search should resume among updated data. If no change happen it should resume after 10 seconds timeout In addition – search input field validation should happen on “Search”…

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ADF, JDeveloper, SQL and PL/SQL, Weblogic

How to change logging level of standalone or integrated WebLogic in JDeveloper? For example how to capture SQL executed?

In Integrated WebLogic (JDeveloper) this can be done with just few clicks: Open “IntegratedWeblogicServer – Log” window. On the right-hand top corner click “Actions” and choose “Configure Oracle Diagnostic Logging” For getting SQL statements in the output, in the opened logging.xml choose “oracle.jbo” logger with desired logging level. Level “Finest” will generate maximum output. SQL staements shoud definitely be there.…

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