I have modeled an Audio class from the Image class. The Audio class
extends WebComponent and implements IResourceListener. The component
contains a byte[] aray containing the audio stream, and I am able to
play audio from the web page.
My question is: When are these components flushed from memory? Is
there something I should do to make them available for garbage collection?
Thanks,
Johan Compagner wrote:
If your Audio component implements IResourceListener and the audio component
holds the byte[]/audio from db Resource. Then just map the <embed tag on
the audio
component
The audio component has the onComponentTag implemented
Where it writes out the src attribute to itself (the IResourceListener)
url = urlFor(IResourceListener.INTERFACE);
then:
public void onResourceRequested()
{
resource.onResourceRequested ();
}
johan
On 5/24/06, *Michael Welter* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
I have a requirement to provide a web site that allows the customer to
drill down into database detail. At the lowest level, the web page
contains the normal text presentation along with zero to many "Play"
buttons. Each button plays a different audio file of previously
recorded speech. The user may or may not choose to listen to the audio.
Everything is working except the "Play" buttons. Hibernate/Postgres is
a joy, and Wicket is great!
I've modeled the Audio and LocalizedAudioResource classes from Image and
LocalizedImageResource. Audio implements IResourceListener. I have the
audio streams in memory as a result of the drill down, and, for now,
I'm
just creating ByteArrayResource objects for each stream (after I get it
working, I'll create a Resource class that performs a database fetch).
BTW, an audio stream is a java.sql.Blob.
I create the Audio object using the ByteArratResource object. The HTML
tag is <embed src="<URL>" width=50 height=50>. The <embed> tag causes
the browser to play the track with MediaPlayer or QuickTime.
In LocalizedAudioResource I create a ResourceStreamRequestTarget object
and pass that to component.urlFor( obj ). I'm to the point where I need
to flesh-out the doEncode(RequestCycle,IRequestTarget) function within
WebRequestCodingStrategy in order to create the URL.
So here are some questions:
Will the URL in the web page reference the ResourceStreamRequestTarget?
What will that URL look like?
Do I need to wrap the <embed> tag in a button or a link?
Does anyone have any thoughts about the doEncode function? Sample
code?
Am I on the right track, or there an easier way to do this?
Thanks for your help. Thanks to compagner and chillenious.
--
Michael Welter
Introspect Telephony Corp.
Denver, Colorado US
+1.303.674.2575
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
www.introspect.com <http://www.introspect.com>
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Michael Welter
Introspect Telephony Corp.
Denver, Colorado US
+1.303.674.2575
[EMAIL PROTECTED]
www.introspect.com
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