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Posted to users@cocoon.apache.org by Patrick Heiden <pa...@gmx.de> on 2009/06/04 13:09:15 UTC
classes in block / usage in flowscript
Hello together,
I am a little bit wondering about following issue.
Assume we have a Java-class inside a cocoon-block (i.e. like the demo bean out of the tutorial).
When I get a new instance of this class through
...
var foo = new some.package.inside.block.MyClass();
...
then i get this error:
...
Caused by: org.mozilla.javascript.EcmaError: ReferenceError: "some" is not defined. (file:///home/pepemuck/_opt/devel/ISAC_DEV/isacBlocks/isacTermBlock/./src/main/resources/COB-INF/flow/MyFlowScript.js
There is no Problem to get instances like java.io.ByteArrayOutputStream() or the like.
So why is this error thrown when I want to get new Objects out of a package-hierarchy inside the package-hosting block?
By the way - instantiation via
...
var foo = MyClass();
...
works perfectly well!
Any hints to understand WHY this happens?
Thanks upfront
with best regards,
Patrick
--
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RE: RE: RE: classes in block / usage in flowscript
Posted by Robby Pelssers <ro...@ciber.com>.
Patrick,
I re-read your question again:
> So your suggestion would be to include all Classes into Spring to get
> access through getComponent("someBean"); !?
I do not advise to configure all classes as spring beans of course. Only the ones which have a more static behavior.
A good use case can be found on my blog:
http://robbypelssers.blogspot.com/2009/06/cocoon-22-block-handling-all-file.html
Cheers,
Robby
-----Original Message-----
From: Patrick Heiden [mailto:patrickheiden@gmx.de]
Sent: Thursday, June 04, 2009 4:04 PM
To: users@cocoon.apache.org
Subject: Re: RE: RE: classes in block / usage in flowscript
Thanks Robby,
that was much of help to me!
Cheers and a nice day,
Patrick
-------- Original-Nachricht --------
> Datum: Thu, 4 Jun 2009 15:28:58 +0200
> Von: "Robby Pelssers" <ro...@ciber.com>
> An: users@cocoon.apache.org
> Betreff: RE: RE: classes in block / usage in flowscript
> Hi Patrick,
>
> If I'm not mistaken I think that some packages of the jdk are imported by
> default so you don't need to explicitly import.
>
> http://cocoon.apache.org/2.1/userdocs/flow/java.html
>
> But my advise is to import the ones you need explicitly.
>
> Cheers,
> Robby
>
> -----Original Message-----
> From: Patrick Heiden [mailto:patrickheiden@gmx.de]
> Sent: Thursday, June 04, 2009 3:19 PM
> To: users@cocoon.apache.org
> Subject: Re: RE: classes in block / usage in flowscript
>
> Hello Robby,
>
> thx for the fast reply!
> ...
>
> > The proper way to access java from flowscript is to import the classes
> > at the top:
> >
> > importClass(Packages.com.mycompany.util.MyClass);
>
> alright, i can get with that, but all i've done was
>
> importPackage(Packages.some.package.inside.blockStructure);
>
> and your following statement was also working!
>
> >
> >
> > then you can do this:
> > var myclass = new MyClass();
> >
> > This should work if at least that package is included in the classpath.
>
> .. the confusing thing to me is, that it is possible to get new Objects
> like java.io.ByteArrayOutputStream WITHOUT importing that class / package!
> So why it is not possible with classes defined inside my block?
>
> >
> > And if you want to access beans, you should not use this construction,
> > neither is importing the class needed.
> >
> > Then you just do:
> > var mybean = cocoon.getComponent("nameOfBean");
>
> So your suggestion would be to include all Classes into Spring to get
> access through getComponent("someBean"); !? I could go with that too, even if
> my beans would have prototype scope, no problem - but my question remains:
> WHY ist isn't possible to instantiate the classes inside block like other
> classes inside my classpath?
>
> Cheers and much thanks,
> Patrick
>
> >
> > Cheers,
> > Robby
> >
> > -----Original Message-----
> > From: Patrick Heiden [mailto:patrickheiden@gmx.de]
> > Sent: Thursday, June 04, 2009 1:09 PM
> > To: users@cocoon.apache.org
> > Subject: classes in block / usage in flowscript
> >
> > Hello together,
> >
> > I am a little bit wondering about following issue.
> > Assume we have a Java-class inside a cocoon-block (i.e. like the demo
> > bean out of the tutorial).
> >
> > When I get a new instance of this class through
> >
> > ...
> > var foo = new some.package.inside.block.MyClass();
> > ...
> >
> > then i get this error:
> >
> > ...
> > Caused by: org.mozilla.javascript.EcmaError: ReferenceError: "some" is
> > not defined.
> > (file:///home/pepemuck/_opt/devel/ISAC_DEV/isacBlocks/isacTermBlock/./sr
> > c/main/resources/COB-INF/flow/MyFlowScript.js
> >
> > There is no Problem to get instances like
> > java.io.ByteArrayOutputStream() or the like.
> >
> > So why is this error thrown when I want to get new Objects out of a
> > package-hierarchy inside the package-hosting block?
> >
> > By the way - instantiation via
> >
> > ...
> > var foo = MyClass();
> > ...
> >
> > works perfectly well!
> >
> >
> > Any hints to understand WHY this happens?
> >
> > Thanks upfront
> >
> > with best regards,
> > Patrick
> > --
> > GMX FreeDSL mit DSL 6.000 Flatrate und Telefonanschluss nur 17,95
> > Euro/mtl.!
> > http://dslspecial.gmx.de/freedsl-aktionspreis/?ac=OM.AD.PD003K11308T4569
> > a
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> > For additional commands, e-mail: users-help@cocoon.apache.org
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> > For additional commands, e-mail: users-help@cocoon.apache.org
>
> --
> GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT!
> Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01
>
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>
>
> ---------------------------------------------------------------------
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> For additional commands, e-mail: users-help@cocoon.apache.org
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Re: RE: RE: classes in block / usage in flowscript
Posted by Patrick Heiden <pa...@gmx.de>.
Thanks Robby,
that was much of help to me!
Cheers and a nice day,
Patrick
-------- Original-Nachricht --------
> Datum: Thu, 4 Jun 2009 15:28:58 +0200
> Von: "Robby Pelssers" <ro...@ciber.com>
> An: users@cocoon.apache.org
> Betreff: RE: RE: classes in block / usage in flowscript
> Hi Patrick,
>
> If I'm not mistaken I think that some packages of the jdk are imported by
> default so you don't need to explicitly import.
>
> http://cocoon.apache.org/2.1/userdocs/flow/java.html
>
> But my advise is to import the ones you need explicitly.
>
> Cheers,
> Robby
>
> -----Original Message-----
> From: Patrick Heiden [mailto:patrickheiden@gmx.de]
> Sent: Thursday, June 04, 2009 3:19 PM
> To: users@cocoon.apache.org
> Subject: Re: RE: classes in block / usage in flowscript
>
> Hello Robby,
>
> thx for the fast reply!
> ...
>
> > The proper way to access java from flowscript is to import the classes
> > at the top:
> >
> > importClass(Packages.com.mycompany.util.MyClass);
>
> alright, i can get with that, but all i've done was
>
> importPackage(Packages.some.package.inside.blockStructure);
>
> and your following statement was also working!
>
> >
> >
> > then you can do this:
> > var myclass = new MyClass();
> >
> > This should work if at least that package is included in the classpath.
>
> .. the confusing thing to me is, that it is possible to get new Objects
> like java.io.ByteArrayOutputStream WITHOUT importing that class / package!
> So why it is not possible with classes defined inside my block?
>
> >
> > And if you want to access beans, you should not use this construction,
> > neither is importing the class needed.
> >
> > Then you just do:
> > var mybean = cocoon.getComponent("nameOfBean");
>
> So your suggestion would be to include all Classes into Spring to get
> access through getComponent("someBean"); !? I could go with that too, even if
> my beans would have prototype scope, no problem - but my question remains:
> WHY ist isn't possible to instantiate the classes inside block like other
> classes inside my classpath?
>
> Cheers and much thanks,
> Patrick
>
> >
> > Cheers,
> > Robby
> >
> > -----Original Message-----
> > From: Patrick Heiden [mailto:patrickheiden@gmx.de]
> > Sent: Thursday, June 04, 2009 1:09 PM
> > To: users@cocoon.apache.org
> > Subject: classes in block / usage in flowscript
> >
> > Hello together,
> >
> > I am a little bit wondering about following issue.
> > Assume we have a Java-class inside a cocoon-block (i.e. like the demo
> > bean out of the tutorial).
> >
> > When I get a new instance of this class through
> >
> > ...
> > var foo = new some.package.inside.block.MyClass();
> > ...
> >
> > then i get this error:
> >
> > ...
> > Caused by: org.mozilla.javascript.EcmaError: ReferenceError: "some" is
> > not defined.
> > (file:///home/pepemuck/_opt/devel/ISAC_DEV/isacBlocks/isacTermBlock/./sr
> > c/main/resources/COB-INF/flow/MyFlowScript.js
> >
> > There is no Problem to get instances like
> > java.io.ByteArrayOutputStream() or the like.
> >
> > So why is this error thrown when I want to get new Objects out of a
> > package-hierarchy inside the package-hosting block?
> >
> > By the way - instantiation via
> >
> > ...
> > var foo = MyClass();
> > ...
> >
> > works perfectly well!
> >
> >
> > Any hints to understand WHY this happens?
> >
> > Thanks upfront
> >
> > with best regards,
> > Patrick
> > --
> > GMX FreeDSL mit DSL 6.000 Flatrate und Telefonanschluss nur 17,95
> > Euro/mtl.!
> > http://dslspecial.gmx.de/freedsl-aktionspreis/?ac=OM.AD.PD003K11308T4569
> > a
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> > For additional commands, e-mail: users-help@cocoon.apache.org
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> > For additional commands, e-mail: users-help@cocoon.apache.org
>
> --
> GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT!
> Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> For additional commands, e-mail: users-help@cocoon.apache.org
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> For additional commands, e-mail: users-help@cocoon.apache.org
--
GMX FreeDSL mit DSL 6.000 Flatrate und Telefonanschluss nur 17,95 Euro/mtl.!
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---------------------------------------------------------------------
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RE: RE: classes in block / usage in flowscript
Posted by Robby Pelssers <ro...@ciber.com>.
Hi Patrick,
If I'm not mistaken I think that some packages of the jdk are imported by default so you don't need to explicitly import.
http://cocoon.apache.org/2.1/userdocs/flow/java.html
But my advise is to import the ones you need explicitly.
Cheers,
Robby
-----Original Message-----
From: Patrick Heiden [mailto:patrickheiden@gmx.de]
Sent: Thursday, June 04, 2009 3:19 PM
To: users@cocoon.apache.org
Subject: Re: RE: classes in block / usage in flowscript
Hello Robby,
thx for the fast reply!
...
> The proper way to access java from flowscript is to import the classes
> at the top:
>
> importClass(Packages.com.mycompany.util.MyClass);
alright, i can get with that, but all i've done was
importPackage(Packages.some.package.inside.blockStructure);
and your following statement was also working!
>
>
> then you can do this:
> var myclass = new MyClass();
>
> This should work if at least that package is included in the classpath.
.. the confusing thing to me is, that it is possible to get new Objects like java.io.ByteArrayOutputStream WITHOUT importing that class / package!
So why it is not possible with classes defined inside my block?
>
> And if you want to access beans, you should not use this construction,
> neither is importing the class needed.
>
> Then you just do:
> var mybean = cocoon.getComponent("nameOfBean");
So your suggestion would be to include all Classes into Spring to get access through getComponent("someBean"); !? I could go with that too, even if my beans would have prototype scope, no problem - but my question remains: WHY ist isn't possible to instantiate the classes inside block like other classes inside my classpath?
Cheers and much thanks,
Patrick
>
> Cheers,
> Robby
>
> -----Original Message-----
> From: Patrick Heiden [mailto:patrickheiden@gmx.de]
> Sent: Thursday, June 04, 2009 1:09 PM
> To: users@cocoon.apache.org
> Subject: classes in block / usage in flowscript
>
> Hello together,
>
> I am a little bit wondering about following issue.
> Assume we have a Java-class inside a cocoon-block (i.e. like the demo
> bean out of the tutorial).
>
> When I get a new instance of this class through
>
> ...
> var foo = new some.package.inside.block.MyClass();
> ...
>
> then i get this error:
>
> ...
> Caused by: org.mozilla.javascript.EcmaError: ReferenceError: "some" is
> not defined.
> (file:///home/pepemuck/_opt/devel/ISAC_DEV/isacBlocks/isacTermBlock/./sr
> c/main/resources/COB-INF/flow/MyFlowScript.js
>
> There is no Problem to get instances like
> java.io.ByteArrayOutputStream() or the like.
>
> So why is this error thrown when I want to get new Objects out of a
> package-hierarchy inside the package-hosting block?
>
> By the way - instantiation via
>
> ...
> var foo = MyClass();
> ...
>
> works perfectly well!
>
>
> Any hints to understand WHY this happens?
>
> Thanks upfront
>
> with best regards,
> Patrick
> --
> GMX FreeDSL mit DSL 6.000 Flatrate und Telefonanschluss nur 17,95
> Euro/mtl.!
> http://dslspecial.gmx.de/freedsl-aktionspreis/?ac=OM.AD.PD003K11308T4569
> a
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> For additional commands, e-mail: users-help@cocoon.apache.org
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> For additional commands, e-mail: users-help@cocoon.apache.org
--
GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT!
Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01
---------------------------------------------------------------------
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---------------------------------------------------------------------
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Re: RE: classes in block / usage in flowscript
Posted by Patrick Heiden <pa...@gmx.de>.
Hello Robby,
thx for the fast reply!
...
> The proper way to access java from flowscript is to import the classes
> at the top:
>
> importClass(Packages.com.mycompany.util.MyClass);
alright, i can get with that, but all i've done was
importPackage(Packages.some.package.inside.blockStructure);
and your following statement was also working!
>
>
> then you can do this:
> var myclass = new MyClass();
>
> This should work if at least that package is included in the classpath.
.. the confusing thing to me is, that it is possible to get new Objects like java.io.ByteArrayOutputStream WITHOUT importing that class / package!
So why it is not possible with classes defined inside my block?
>
> And if you want to access beans, you should not use this construction,
> neither is importing the class needed.
>
> Then you just do:
> var mybean = cocoon.getComponent("nameOfBean");
So your suggestion would be to include all Classes into Spring to get access through getComponent("someBean"); !? I could go with that too, even if my beans would have prototype scope, no problem - but my question remains: WHY ist isn't possible to instantiate the classes inside block like other classes inside my classpath?
Cheers and much thanks,
Patrick
>
> Cheers,
> Robby
>
> -----Original Message-----
> From: Patrick Heiden [mailto:patrickheiden@gmx.de]
> Sent: Thursday, June 04, 2009 1:09 PM
> To: users@cocoon.apache.org
> Subject: classes in block / usage in flowscript
>
> Hello together,
>
> I am a little bit wondering about following issue.
> Assume we have a Java-class inside a cocoon-block (i.e. like the demo
> bean out of the tutorial).
>
> When I get a new instance of this class through
>
> ...
> var foo = new some.package.inside.block.MyClass();
> ...
>
> then i get this error:
>
> ...
> Caused by: org.mozilla.javascript.EcmaError: ReferenceError: "some" is
> not defined.
> (file:///home/pepemuck/_opt/devel/ISAC_DEV/isacBlocks/isacTermBlock/./sr
> c/main/resources/COB-INF/flow/MyFlowScript.js
>
> There is no Problem to get instances like
> java.io.ByteArrayOutputStream() or the like.
>
> So why is this error thrown when I want to get new Objects out of a
> package-hierarchy inside the package-hosting block?
>
> By the way - instantiation via
>
> ...
> var foo = MyClass();
> ...
>
> works perfectly well!
>
>
> Any hints to understand WHY this happens?
>
> Thanks upfront
>
> with best regards,
> Patrick
> --
> GMX FreeDSL mit DSL 6.000 Flatrate und Telefonanschluss nur 17,95
> Euro/mtl.!
> http://dslspecial.gmx.de/freedsl-aktionspreis/?ac=OM.AD.PD003K11308T4569
> a
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> For additional commands, e-mail: users-help@cocoon.apache.org
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org
> For additional commands, e-mail: users-help@cocoon.apache.org
--
GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT!
Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01
---------------------------------------------------------------------
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For additional commands, e-mail: users-help@cocoon.apache.org
RE: classes in block / usage in flowscript
Posted by Robby Pelssers <ro...@ciber.com>.
The proper way to access java from flowscript is to import the classes
at the top:
importClass(Packages.com.mycompany.util.MyClass);
then you can do this:
var myclass = new MyClass();
This should work if at least that package is included in the classpath.
And if you want to access beans, you should not use this construction,
neither is importing the class needed.
Then you just do:
var mybean = cocoon.getComponent("nameOfBean");
Cheers,
Robby
-----Original Message-----
From: Patrick Heiden [mailto:patrickheiden@gmx.de]
Sent: Thursday, June 04, 2009 1:09 PM
To: users@cocoon.apache.org
Subject: classes in block / usage in flowscript
Hello together,
I am a little bit wondering about following issue.
Assume we have a Java-class inside a cocoon-block (i.e. like the demo
bean out of the tutorial).
When I get a new instance of this class through
...
var foo = new some.package.inside.block.MyClass();
...
then i get this error:
...
Caused by: org.mozilla.javascript.EcmaError: ReferenceError: "some" is
not defined.
(file:///home/pepemuck/_opt/devel/ISAC_DEV/isacBlocks/isacTermBlock/./sr
c/main/resources/COB-INF/flow/MyFlowScript.js
There is no Problem to get instances like
java.io.ByteArrayOutputStream() or the like.
So why is this error thrown when I want to get new Objects out of a
package-hierarchy inside the package-hosting block?
By the way - instantiation via
...
var foo = MyClass();
...
works perfectly well!
Any hints to understand WHY this happens?
Thanks upfront
with best regards,
Patrick
--
GMX FreeDSL mit DSL 6.000 Flatrate und Telefonanschluss nur 17,95
Euro/mtl.!
http://dslspecial.gmx.de/freedsl-aktionspreis/?ac=OM.AD.PD003K11308T4569
a
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