Harsha Sanjeewa has translated the vaadin example of the tree in clojure.
The source is here https://github.com/hsenid-mobile/clj-vaadin. It is very
useful to begin working with clojure and vaadin.
This tree example has 2 levels and I would like to have 4 levels. With the
following code it
I have tried to use amap but I was too difficult for me and I have tried the
map:
(def tree (com.vaadin.ui.Tree. Planets))
(map #(.addItem tree (.toString (first %))) planets)
But I get an error:
IllegalArgumentException Don't know how to create ISeq from:
I would like to translate a java example of tree vaadin to clojure. I have
to files in the same folder: planets.clj and core.clj. I am having problems
and I need help. What I am doing wrong?
*
*
*;; In the file planets.clj:*
(ns project.planets)
(let [planets (doto (Object
Can you describe the problem you are having?
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To
First problem:
In Java:
new Object[]{Venus}
On 26 June 2011 18:46, .Bill Smith william.m.sm...@gmail.com wrote:
Can you describe the problem you are having?
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Ooops - gmail malfunction
First problem, in Java:
new Object[]{Venus}
creates a new object array - containing the String Venus.
Your clojure code
Object. [Venus])
is trying to call the constructor of Object passing in a single argument
which is a Clojure Vector. This isn't going to
*Could* it *possible* to use a list with peek and pop to create the planets
and moons list?
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Could anyone write the planet array of objects?
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I could be fine this?
(def planets (object-array [[Venus] [Earth The Moon] [Mars Phobos
Deimos]]))
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How I can translate this in clojure?
for (int i=0; iplanets.length; i++) {
String planet = (String) (planets[i][0]);
tree.addItem(planet);
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Maybe
(map #(.addItem tree (.toString (first %))) planets)
where #(.addItem tree (.toString (first %))) should be replaced with the
correct java interop for inserting into the tree, and the % becomes one and
one of the items in the planets vector (that is regarded as a sequence) the
argument.
I've never used it, but you would use amap instead of map in this situation,
because it is a Java array.
http://clojuredocs.org/clojure_core/clojure.core/amap
Ambrose
On Mon, Jun 27, 2011 at 1:08 PM, Linus Ericsson
oscarlinuserics...@gmail.com wrote:
Maybe
(map #(.addItem tree (.toString
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