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.)
(Object. ["Venus"])
(Object. ["Earth" "The Moon"])
(Object. ["Mars" "Phobos" "Deimos"])
)]
*;; In the file core.clj:*
(load "planets")
(defn -cjinit [][[] (ref {})])
(defn -init [this]
(let [tree (doto (com.vaadin.ui.Tree. "The Planets and Major Moons")
(loop [i 0]
(str planet planets[i] 0)
(.addItem planet)
(if (= planets[i].length 1)
(.setChildrenAllowed planet false))
(loop [j 1]
(str moon planets[i][j])
(.addItem monn)
(.setParent moon planet)
(.setChildrenAllowed moon false))
(.expandItemsRecursively planet)
(recur (inc i))))]
(do (.addComponent main tree))))
*;; Java*
final Object[][] planets = new Object[][]{
new Object[]{"Mercury"},
new Object[]{"Venus"},
new Object[]{"Earth", "The Moon"},
new Object[]{"Mars", "Phobos", "Deimos"},
new Object[]{"Jupiter", "Io", "Europa", "Ganymedes",
"Callisto"},
new Object[]{"Saturn", "Titan", "Tethys", "Dione",
"Rhea", "Iapetus"},
new Object[]{"Uranus", "Miranda", "Ariel", "Umbriel",
"Titania", "Oberon"},
new Object[]{"Neptune", "Triton", "Proteus", "Nereid",
"Larissa"}};
Tree tree = new Tree("The Planets and Major Moons");
for (int i=0; i<planets.length; i++) {
String planet = (String) (planets[i][0]);
tree.addItem(planet);
if (planets[i].length == 1) {
tree.setChildrenAllowed(planet, false);
} else {
for (int j=1; j<planets[i].length; j++) {
String moon = (String) planets[i][j];
tree.addItem(moon);
tree.setParent(moon, planet);
tree.setChildrenAllowed(moon, false);
}
tree.expandItemsRecursively(planet);
}
}
main.addComponent(tree);
*
*
*;; The final result must be something like this:*
<http://vaadin.com/download/current/docs/book/img/components/tree-example1.png>
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