Ok I investigated a bit further and I found some seriously weird
stuff...I'm gonna need the help of a java expert here:
(pprint (.getMethods (.getClass opennlp-pos))) ;;notice that the method
I'm trying to call *doesn't exist according to this*!!!!!!!!
[#<Method public static opennlp.tools.postag.POSModel
opennlp.tools.postag.POSTaggerME.train(java.lang.String,opennlp.tools.util.ObjectStream,opennlp.tools.util.model.ModelType,opennlp.tools.postag.POSDictionary,opennlp.tools.dictionary.Dictionary,int,int)
throws java.io.IOException>,
#<Method public void opennlp.tools.postag.POSTaggerME.probs(double[])>,
#<Method public double[] opennlp.tools.postag.POSTaggerME.probs()>,
#<Method public int opennlp.tools.postag.POSTaggerME.getNumTags()>,
#<Method public java.lang.String[]
opennlp.tools.postag.POSTaggerME.getOrderedTags(java.util.List,java.util.List,int)>,
#<Method public java.lang.String[]
opennlp.tools.postag.POSTaggerME.getOrderedTags(java.util.List,java.util.List,int,double[])>,
#<Method public opennlp.tools.util.Sequence[]
opennlp.tools.postag.POSTaggerME.topKSequences(java.util.List)>,
#<Method public opennlp.tools.util.Sequence[]
opennlp.tools.postag.POSTaggerME.topKSequences(java.lang.String[])>,
*#<Method public java.lang.String[]
opennlp.tools.postag.POSTaggerME.tag(java.lang.String[])>,**
** #<Method public java.lang.String
opennlp.tools.postag.POSTaggerME.tag(java.lang.String)>,**
** #<Method public java.util.List
opennlp.tools.postag.POSTaggerME.tag(java.util.List)>,**
** #<Method public java.lang.String[][]
opennlp.tools.postag.POSTaggerME.tag(int,java.lang.String[])>,*
#<Method public final void java.lang.Object.wait(long,int) throws
java.lang.InterruptedException>,
#<Method public final native void java.lang.Object.wait(long) throws
java.lang.InterruptedException>,
#<Method public final void java.lang.Object.wait() throws
java.lang.InterruptedException>,
#<Method public boolean java.lang.Object.equals(java.lang.Object)>,
#<Method public java.lang.String java.lang.Object.toString()>,
#<Method public native int java.lang.Object.hashCode()>,
#<Method public final native java.lang.Class java.lang.Object.getClass()>,
#<Method public final native void java.lang.Object.notify()>,
#<Method public final native void java.lang.Object.notifyAll()>]
nil
but then this seems very strange so I went and decompiled the class file
(actually the entire jar) and the method that takes 2 arrays as args
does exist both in the interface and the concrete implementation
(POSTagger & POSTaggerME respectively)....
how on earth can that be? any ideas anyone? this seems utterly odd to me!
Jim
On 12/03/13 13:26, Jim - FooBar(); wrote:
Hi all,
I came back to a project of mine after a week or so and I'm facing a
problem which I have no idea where it came from! This is the first
time I'm seeing it on this project - everything worked just fine a
week ago! The problem is this:
Consider some java class (opennlp-POS-tagger) with 3 .tag()
overloads...signatures and bodies follow:
public *String[] tag(String[] sentence)* {
return this.tag(sentence, null); //this is essentially what I'm
trying in my code
}
public *String[] tag(String[] sentence, Object[] additionaContext) *{
bestSequence = beam.bestSequence(sentence, additionaContext);
List<String> t = bestSequence.getOutcomes();
return t.toArray(new String[t.size()]);
}
public *String[][] tag(int numTaggings, String[] sentence) *{
Sequence[] bestSequences = beam.bestSequences(numTaggings,
sentence,null);
String[][] tags = new String[bestSequences.length][];
for (int si=0;si<tags.length;si++) {
List<String> t = bestSequences[si].getOutcomes();
tags[si] = t.toArray(new String[t.size()]);
}
Now, from my code I'm trying to do:
(.tag opennlp-pos (into-array ["New-York" "(NY)" "is" "the" "city"
"that" "never" "sleeps" "."]) nil)
which gives me a IllegalArgumentException Unexpected param type,
expected: int, given: [Ljava.lang.String;
clojure.lang.Reflector.boxArg (Reflector.java:432)
Basically, it's trying to invoke the last overload ,whereas I'm trying
to invoke the second one!!!
If I omit the 'nil' at the end , the correct method is invoked (the
first which calls the second)...why can't Clojure find the second
overload and goes for the 3rd?
any ideas?
Jim
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