ADF Basics: Set Background Image for a Page(.jsf) in ADF 12c

In this post, I will give hint to set background image for a page in ADF 12c(12.1.3.0.0).


As you know, when you create .jsf page immediately after root component of jsf page(f:view) we have ad:document component.

So, if we set background image for this component, then it occupy entire page.

Go to file shortcut Ctrl + Alt + Minus issue in jdeveloper

I faced all of a sudden Go to file short cut in JDev IDE stop working. To resolve this, I followed below mentioned steps. 

Step1: Close the Jdeveloper IDE.

Step2: Go to your jdeveloper system folder and find for the folder 

'o.jdeveloper' and edit  ide.properties file.

If you observe,  Below mentioned values were set to zero. So, to fix the issue, we need to restore 

 default values.

ide.goto.file.width=400

ide.goto.file.height=300

ide.goto.file.x=440

ide.goto.file.y=234

save the file and restart your JDeveloper. 

Hope this Helps!.

JDev 12c Performance Improvement tips

Hi All,

When working with ADF 12c project with JDev 12c(12.1.3.0.0) I faced issues related to J Developer slowness.

So, from the online I found few tips to improve the speed/performance of J Developer and documented here for my reference

1. Disable auto build on save

Tools -> Preferences -> Code Editor -> Save Actions -> Remove Build project on save(by Clicking on Save)

2. Change look and feel to Windows instead of Oracle theme

Tools -> Preferences -> Environment -> Look and Feel to ‘Windows’

3. Disable/Un-install updates which you are not using

Tools -> Features -> In Manage Features and Updates

Uncheck the updates which you are not using

4. In ide.conf file (located under Oracle home directory\jdeveloper\ide\bin)

AddVMOption  -Xms1024M

AddVMOption  -Xmx1024M

5. In jdev.conf file(located under Oracle Home Directory\jdeveloper\jdev\bin)

AddVMOption -Doracle.ide.osgi.buddy.delegate.resource.exempt.paths=META-INF/services/javax.xml.ws.spi.Provider

# optimize the JVM for strings / text editing

        AddVMOption -XX:+UseStringCache

        AddVMOption -XX:+OptimizeStringConcat

        AddVMOption -XX:+UseCompressedStrings

        # if on a 64-bit system, but using less than 32 GB RAM, this reduces object pointer memory size

        AddVMOption -XX:+UseCompressedOops

        # use an aggressive garbage collector (constant small collections)

        AddVMOption -XX:+AggressiveOpts

        # for multi-core machines, use multiple threads to create objects and reduce pause times

        AddVMOption -XX:+UseConcMarkSweepGC

6. Use Fast Swap Jdev feature to speedup the development
      Tools -> Preferences -> Run -> Weblogic -> Fast Swap

7. Use source editor for JSP and JSFF instead of design editor

     Tools -> Preferences -> File types -> Default editor

8. Also set high priority in the windows task manager as shown below
 
     Right click on jdev64w.exe -> set priority -> High



9. If you application does not use mds, locally you clean up contents of few folders in system directory on a daily basis. I see some bit of help by deleting contents of below folders daily. Do not delete folder itself. Just delete its contents.

.diagnostics , .history and .system cache 

Some of the Reference Blog link

1. Shay blog

https://blogs.oracle.com/shay/entry/is_your_jdeveloper_slow_it_sho

2. Oracle blog

https://blogs.oracle.com/angelo/entry/improving_the_performance_of_jdeveloper

3. http://waslleysouza.com.br/en/2014/04/increase-the-performance-of-jdeveloper-11g/

4. http://bexhuff.com/2012/09/jdeveloper-memory-and-performance

Thank you.