RE: [Embedlets-dev] Re: [Arch] ANT
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RE: [Embedlets-dev] Re: [Arch] ANT
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From: Christopher S. <cs...@oo...> - 2003-02-06 07:18:37
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> -----Original Message-----
> From: emb...@li...
> [mailto:emb...@li...]On Behalf Of
> James Caska
> Sent: Wednesday, February 05, 2003 11:02 PM
> To: emb...@li...
> Subject: RE: [Embedlets-dev] Re: [Arch] ANT
>
>
> Topic tags:[Arch][Wiring][Doc][HW][PM]
> _______________________________________________
>
> >A question on the pure dynamic configuration as it relates to muvium: Do
> you
> >have a dynamic instantiator alla forName()?
>
> No I haven't implemented forName() just yet but what I don't have today, I
> 'can have' tommorrow especially if it moves up the priority list.
>
> Implementing a forName() function would be quite straight forward. The
> normal useage of the forName() is something like
> Class.forName("BinaryOr").newInstance(); which complicates the
> implementation with the Class class.
That was the reason for the shortcut.
>
> The alterative would be to override your
> EmbedletClassLoader.forName(String)
> implementation with an assembly implementation that is highly compact and
> optimised for all the classes in the implementation.
>
> Or yes, you could implement it the way you have suggested but for core
> features like this I would think I will be overriding the
> implementations in
> most cases for optimal compactness/performance.
>
> Same thing for planned support of serialisation. As I said.. the list is
> LONG!
>
> James Caska
> http://www.muvium.com
> 'Java Bred for Embedded'
>
>
>
>
>
> > -----Original Message-----
> > From: emb...@li...
> > [mailto:emb...@li...]On Behalf Of
> > Christopher Smith
> > Sent: Thursday, February 06, 2003 5:24 PM
> > To: emb...@li...
> > Subject: RE: [Embedlets-dev] Re: [Arch] ANT
> >
> >
> > Topic tags:[Arch][Wiring][Doc][HW][PM]
> > _______________________________________________
> >
> >
> > > Topic tags:[Arch][Wiring][Doc][HW][PM]
> > > _______________________________________________
> > >
> > > >I do not know what muivum provides but I would be (pleasantly)
> > > surprised if
> > > they have remote-able flash update.
> > >
> > > Updates are over serial Connection UART at the minute with
> TCP/IP remote
> > > update planned shortly. In fact we plan to support dynamic
> updates over
> > > almost anything that can communicate with the uVM device. Also
> > plan remote
> > > in place debugging :-) But the wishlist is pretty long so what
> > > comes when is
> > > trickier!
> > >
> >
> > Very nice! As the muvium is the likely candidate for static
> configuration
> > due to its size contraint this will greatly increase its 'wiring'
> > flexibility.
> >
> > A question on the pure dynamic configuration as it relates to
> > muvium: Do you
> > have a dynamic instantiator alla forName()? This would in effect
> > be the only
> > core requirement for a purely dynamic configuration scheme.
> >
> > If not the following would suffice and it would be interesting
> to see what
> > the footprint would be after your cross compile. (Note name space is
> > speculative and not intended to indicate any preference)
> >
> > /**
> > *
> > * Provides a limited small footprint class loader.
> > * Requires a list of available classes that get instanciated on demand.
> > * Uses the forName(String className) form as in the standard Java class
> > loader.
> > *
> > * @author csmith - OopScope
> > * @date 02/03/2003
> > *
> > */
> >
> > package org.embedlet.persistence;
> >
> > public class EmbedletClassLoader
> > {
> > // Class pool list
> > String[] classes =
> > {"BinaryOr",
> > "BinaryAnd"
> > };
> >
> >
> > /**
> > * Create and instance of the class passed in name
> > *
> > * @param name - the name of the class to instantiate
> > * @return the - instance or null
> > */
> > public Object forName(String name)
> > {
> > int index;
> > boolean found = false;
> > Object object = null;
> > for (index = 0; index<classes.length ; index++)
> > {
> > if (name.equals(classes[index]))
> > {
> > found = true;
> > break;
> > }
> > }
> >
> > if (found)
> > {
> > switch (index)
> > {
> > case 0:
> > // actual code:
> > // object = new BinaryOr();
> >
> > // stub for testing
> > object = new String("BinaryOr");
> > break;
> > case 1:
> > // actual code:
> > //object = new BinaryAnd();
> >
> > // stub for testing
> > object = new String("BinaryAnd");
> > break;
> > }
> > }
> > return object;
> > }
> > }
> > >
> >
> >
> >
> >
> > -------------------------------------------------------
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> > SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See!
> > http://www.vasoftware.com
> > _______________________________________________
> > Embedlets-developer mailing list
> > Emb...@li...
> > https://lists.sourceforge.net/lists/listinfo/embedlets-developer
> >
> >
>
>
>
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