You can have your cake and eat it too.
I haven't touched this code in years, but there's no reason it shouldn't
still work with the current version of Clojure.
https://github.com/apache/tapestry-5/tree/master/tapestry-clojure
Essentially, you provide an interface and map it to a Clojure namespac
> It's not really a good idea to AOT your code and then directly try to
> use it from java. The generated java bytecode isn't guaranteed to be
> stable across versions of clojure, and you're depending on
> implementation details.
>
>
One way to use your clojure code from java is through RT
On Wed, Jun 13, 2012 at 11:48 PM, Warren Lynn wrote:
> Ok, I hit a wall and really did not see this coming.
>
> Based on what I have read, its really easy for Clojure and Java to
> work together. So I wrote some test Clojure code with a very simple
> defrecord (say named as "testrec") and AOT comp
On Thu, Jul 28, 2011 at 1:58 PM, Meikel Brandmeyer wrote:
> If the thing you want to call is a macro, you have to hope that the library
> other provided the logic as star function (as in Nicolas' case). If there is
> no function containing the actual logic, you have to re-implement the macro
>
Hi,
Am 28.07.2011 um 19:43 schrieb mmwaikar:
> Thanks again Meikel. Where can I read about things like bindRoot, intern or
> to be precise java-clojure interop?
There are only a few things you must know:
- RT.var to get a variable from a namespace
- v.invoke to invoke a function stored in a Va
It may also be useful to read up on primitives, since primitive support is
often a source of impedance mismatch when software in one language talks to
software in another. Would someone mind supplying a link to a description
of how Clojure works with Java primitives in the 1.2.1 and 1.3 release
Thanks again Meikel. Where can I read about things like bindRoot, intern or
to be precise java-clojure interop?
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Hi,
Am 26.07.2011 um 19:48 schrieb mmwaikar:
> RT.load("lobos/core", true);
> RT.load("lobos/schema", true);
You should go through require.invoke(). Not RT.load().
> and called wrapper.createTable() then I get - (# lobos.core$create_STAR_@49431028> (quote {:classname "or
On Tue, Jul 26, 2011 at 12:43 PM, mmwaikar wrote:
> Hi,
>
> I am using the Lobos library - https://github.com/budu/lobos
> In it there's a function create, which is called like this - (create db
> (table :some-name)), where db is earlier defined as - (def db
> {:classname "org.postgresql.Driv
Nope. I moved the main code to ns hexadoku.core (generating package
hexadoku, class core) and did the deftype in hexadoku (generating package
hexadoku, class HexSolver). The error remains
Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException: Var
hexadoku.core/search is unbound.
a
On Mon, Mar 28, 2011 at 8:46 AM, Mark Meyer wrote:
> Hi.
> I'm having problems calling clojure code from Java. Basically I deftype'd
> (deftype HexSolver []
> Solver
> (solve [this grid] (search (process-grid grid
> and somewhere near the top of that file file
> (defn search [foo] ...)
> t
2010/12/22 Mark Engelberg
> I've decided to go with the old gen-class approach (mainly so I can
> take advantage of the "state" option).
> I'm running into a problem implementing Iterable.
> The following lines in gen-class create a conflict:
> :implements [java.lang.Iterable]
> :methods [[it
I've decided to go with the old gen-class approach (mainly so I can
take advantage of the "state" option).
I'm running into a problem implementing Iterable.
The following lines in gen-class create a conflict:
:implements [java.lang.Iterable]
:methods [[iterator [] java.util.Iterator]]
It com
2010/12/22 Chas Emerick
>
> On Dec 22, 2010, at 4:58 AM, Laurent PETIT wrote:
>
> > There's also this issue raised in the bug tracker (by Chas Emerick I
> presume ?) which is about adding a nice java facade for this kind of interop
> (and thus also ensuring some independance towards clojure inter
On Dec 22, 2010, at 4:58 AM, Laurent PETIT wrote:
> There's also this issue raised in the bug tracker (by Chas Emerick I presume
> ?) which is about adding a nice java facade for this kind of interop (and
> thus also ensuring some independance towards clojure internals).
>
> What about bringin
Mark Engelberg writes:
> Looks easy, but your dance and speak methods don't return a value
> which leaves a question in my mind...
>
> If the protocol implementation actually returns a value, do you have
> to explicitly typecast it in Java from Object into the desired type?
Yep, certainly. A Cl
2010/12/22 Mark Engelberg
> Looks easy, but your dance and speak methods don't return a value
> which leaves a question in my mind...
>
> If the protocol implementation actually returns a value, do you have
> to explicitly typecast it in Java from Object into the desired type?
>
Yes
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Looks easy, but your dance and speak methods don't return a value
which leaves a question in my mind...
If the protocol implementation actually returns a value, do you have
to explicitly typecast it in Java from Object into the desired type?
Thanks,
Mark
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Mark Engelberg writes:
> Are there any examples available of creating a compiled
> class/interface with deftype and defprotocol, and using these from
> Java?
It's pretty straightforward and works exactly how you might expect it
to.
Create a new project:
$ lein new interop
Define a type and
Hi,
Am 22.12.2010 um 11:15 schrieb Mark Engelberg:
> Are there any examples available of creating a compiled
> class/interface with deftype and defprotocol, and using these from
> Java?
Protocols also define an interface which can be implemented by classes. For
deftype this happens when you spe
Are there any examples available of creating a compiled
class/interface with deftype and defprotocol, and using these from
Java?
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Hi,
Am 22.12.2010 um 10:56 schrieb Mark Engelberg:
> On Wed, Dec 22, 2010 at 1:52 AM, Meikel Brandmeyer wrote:
>> It is a little ugly, but works with any function, in particular static and
>> protocol functions. If you want a less rough interface, you can still go the
>> gen-class route from t
2010/12/22 Mark Engelberg
> On Wed, Dec 22, 2010 at 1:52 AM, Meikel Brandmeyer wrote:
> > It is a little ugly, but works with any function, in particular static
> and protocol functions. If you want a less rough interface, you can still go
> the gen-class route from the article. But this will co
2010/12/22 Meikel Brandmeyer
> Hi,
>
> Am 22.12.2010 um 10:13 schrieb Mark Engelberg:
>
> > I'm trying to figure out how to bundle up some Clojure code into a jar
> > to be accessed by someone in Java.
> >
> > My google search turned up this link:
> > http://java.dzone.com/articles/java-clojure-i
On Wed, Dec 22, 2010 at 1:52 AM, Meikel Brandmeyer wrote:
> It is a little ugly, but works with any function, in particular static and
> protocol functions. If you want a less rough interface, you can still go the
> gen-class route from the article. But this will come at the cost of one level
>
Hi,
Am 22.12.2010 um 10:13 schrieb Mark Engelberg:
> I'm trying to figure out how to bundle up some Clojure code into a jar
> to be accessed by someone in Java.
>
> My google search turned up this link:
> http://java.dzone.com/articles/java-clojure-interop-calling
> which dates back to Clojure 1
On 23 jan, 03:00, Stuart Sierra wrote:
> On Jan 22, 6:51 pm, Peter Wolf wrote:
>
> > However, if there is only one Clojure image used for references and the
> > like, what happens if someone calls an infinite loop, or infinite
> > recursion, in a file. Does the Clojure server hang/blow up?
>
Hi,
On 23 jan, 01:43, Peter Wolf wrote:
> Hi Laurent,
> 1) Does Eclipse use the server for resolving references?
Currently, the only resolved references are those that come from a
clojure environment launched by the user. So yes.
When time comes to resolve references for the needs of the editor
Thanks for the explanation Stuart,
So it seems that all the Swank Clojure IDEs rely on files only
containing "safe" code. I guess that's OK provided everyone understands
this.
Is is any way to only process the def's? For example processing the
following would only define the symbol "foo", b
On Jan 22, 6:51 pm, Peter Wolf wrote:
> However, if there is only one Clojure image used for references and the
> like, what happens if someone calls an infinite loop, or infinite
> recursion, in a file. Does the Clojure server hang/blow up?
If you code an infinite loop, the SWANK server will
Hi Laurent,
My questions and current beliefs are:
1) Does Eclipse use the server for resolving references?
2) Is the server visible to the user, or hidden inside Eclipse?
3) Does the server call load-file?
4) Can the user break the server with bogus code in a file?
5) What happens if a file has
I'll also reply inline ... ->
On 23 jan, 00:51, Peter Wolf wrote:
> Thanks for the lengthy reply Laurent, Replies in-line
>
> lpetit wrote:
> > Peter,
>
> > We asked us the same question some weeks ago, on clojuredev.
>
> > We took the path to follow how eclipse launches a java application
> >
Thanks for the lengthy reply Laurent, Replies in-line
lpetit wrote:
> Peter,
>
> We asked us the same question some weeks ago, on clojuredev.
>
> We took the path to follow how eclipse launches a java application
> when the user requires it to test it.
> So we created a customized "launch config
Peter,
We asked us the same question some weeks ago, on clojuredev.
We took the path to follow how eclipse launches a java application
when the user requires it to test it.
So we created a customized "launch configuration" (sorry, eclipse
jargon), that is just a classical eclipse java launcher w
On Thu, Jan 22, 2009 at 4:43 PM, Peter Wolf wrote:
>
> This is a rejuvenation of the old "calling Java from Clojure" thread
>
> I have been looking at the solutions from Mark
> /
> 1) From a Java application, read a text file containing Clojure code
> and invoke specific functions it defines
On Jan 3, 8:13 pm, "Mark Volkmann" wrote:
> I'd like to learn how to invoke Clojure code from a Java application.
> I see at least two options.
>
> 1) From a Java application, read a text file containing Clojure code
> and invoke specific functions it defines from Java code.
Here's how I do it:
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