This is a series of notes on building custom JSF 2.0 facelet taglibs, ordered from the simplest to the less simple. Hopefully it can help you to get started on how to build custom taglibs for JSF. A simple JSF facelets taglib example The simplest taglib I can think of. Using EL expression with a custom tag Make tag attributes dynamic. Mixing custom tag with facelet ui taglibs Discover things you might run into when you get into more details. Which EL context to use? Using the wrong EL context can lead to subtle bugs. JSF facelet taglib backed by a UI component A UIComponent can be a tag handler, without being TagHandler . Using tag handler, UI component and renderer with a JSF facelet...

The improved custom taglib works with existing facelet ui taglibs. For example: <ui:param name="theName" value="John"/> <my:hel... produces the expected output. However, a problem exists with the ui:repeat tag: <h3>With ui:repeat</h3> <ui:repeat var="theName... When tested with a URL like: http://localhost:8080/facelet-demo/?name=Zack&name... the raw EL prints out the correct names, but my custom tag substitutes empty string for theName2 ! In theory, the response is rendered in the Render Response phase, way after the Apply Request Values phase, actual values should be available to EL. The answer to this anomaly turned out to be very deep ! Yes, right there in the code! I would consider this a bug in facelets implementation, but the JSF spec did not tell what the expected behavior should be. In my custom...

Syntax highlighted XML schema for JSF 2.0 Application Configuration Resource File ( faces-config.xml ). Almost 3000 lines! <?xml version="1.0" encoding="UTF-8"?> <xsd:sch...

Facelet templates can be nested, for example, a page can use a template which inherits from another template. To demonstrate this, let's start from the simple example and make these additions: Add a place holder for CSS style sheets in WEB-INF/templates/default.xhtml : <h:head> <title>Facelets Template Demo</tit... Add a derivative template ( WEB-INF/templates/default-style.xhtml ) which provides CSS: <?xml version="1.0" encoding="UTF-8"?> <ui:comp... Add a page that uses the styled template ( home-style.xhtml ): <?xml version="1.0" encoding="UTF-8"?> <ui:comp... The only difference between this file and home.xhtml is the template being used. Compare the display of the pages home.xhtml and home-style.xhtml .

When you run automated Android tests with Eclipse or from the command line, you get text output, which isn't good for reporting purposes. If you run a large set of test cases with automated build, the text report isn't very helpful. Fortunately, Android CTS generates test reports in XML with accompanying XSL to make it look nice in a browser. To run your own tests with Android CTS: Download Android CTS Make a new directory MyRepository under android-cts , alongside the existing repository directory. Copy host_config.xml from repository to MyRepository Create directory plans under MyRepository , add a test plan ( MyTests.xml ): <?xml version="1.0" encoding="UTF-8"?> <TestPla... Create directory testcases under MyRepository . Copy TestDeviceSetup.apk from repository/testcases to MyRepository/testcases Under MyRepository/testcases , create a test...

I just installed Ubuntu 11.04 desktop on my old Dell laptop, but the cdrom is not auto-mounting. Normally this simply works. I tried various things like adding cdrom to /etc/fstab and installing halevt (which failed), none worked. However, I found out that despite talks of using gnome-volume-manager etc, at least for this version of Ubuntu automount is managed by Nautilus (file manager): start gconf-editor and navigate to /apps/nautilus/preferences/ , media_automount should be checked (but it's checked by default, unless you changed it). In the end, I wasn't able to make cdrom automount, although USB drives automounted fine. Instead of wasting more time to diagnose the problem, I manually mounted the cdrom drive: $ sudo mount /dev/cdrom /cdrom

This is a list of built-in Android permission values: Permission Description Since API Level android.permission.ACCESS_CHECKIN_PROPERTIES Allows read/write access to the "properties" table in the checkin database, to change values that get uploaded. 1 android.permission.ACCESS_COARSE_LOCATION Allows an application to access coarse (e.g., Cell-ID, WiFi) location 1 android.permission.ACCESS_FINE_LOCATION Allows an application to access fine (e.g., GPS) location 1 android.permission.ACCESS_LOCATION_EXTRA_COMMANDS Allows an application to access extra location provider commands 1 android.permission.ACCESS_MOCK_LOCATION Allows an application to create mock location providers for testing 1 android.permission.ACCESS_NETWORK_STATE Allows applications to access information about networks 1 android.permission.ACCESS_SURFACE_FLINGER Allows an application to use SurfaceFlinger's low level features 1 android.permission.ACCESS_WIFI_STATE Allows applications to access information about Wi-Fi networks 1 android.permission.ACCOUNT_MANAGER Allows applications to call into AccountAuthenticators. Only the system can get this permission. 5 android.permission.AUTHENTICATE_ACCOUNTS...

The following procedure will clear out the NVRAM and set dd-wrt back to default values: With the unit powered on, press and hold the reset button on back of unit for 30 seconds Without releasing the reset button, unplug the unit and hold reset for another 30 seconds Plug the unit back in still holding the reset button a final 30 seconds This procedure should be done before and after every firmware upgrade/downgrade. The firmware writes information to the Nvram . A hard reset clears that information. If you don't clear it properly, parts of the old information be present with the new firmware, which can make it not operate properly.

Fedora/Redhat List current status (for httpd): # chkconfig --list httpd Warning: this works only when one of /etc/rc runlevel .d/ K NN name or /etc/rc runlevel .d/ S NN name exists. It exports wrong status when both K and S scripts exist (in which case the status should be enabled). Enable sshd for run levels 2, 3, 5: # chkconfig --level 2,3,5 sshd on Disable sshd for run levels 2, 3, 5: # chkconfig --level 2,3,5 sshd off By default, the on and off options affect only runlevels 2, 3, 4, and 5. Debian/Ubuntu Add apache2 with defaults : # update-rc.d apache2 defaults If defaults is used then update-rc.d will make links to start the service in runlevels 2, 3, 4, 5 and to stop...

While doing some Java reflection code, I noticed the method Class.isSynthetic() , which the JavaDoc says returns " true if and only if this class is a synthetic class as defined by the Java Language Specification". However, there's no definition of "synthetic class" in the JLS ! The only thing that I can find that remotely resembles a definition is in the JVM spec , where it defines the synthetic attribute : "The Synthetic attribute is a fixed-length attribute in the attributes table of ClassFile (§4.1), field_info (§4.5), and method_info (§4.6) structures. A class member that does not appear in the source code must be marked using a Synthetic attribute." By this definition, a default constructor, which does not appear in the source code, should...