Re: JDBC Array double precision [] error

getArray returns a Double[] - not a primitive double[]. You can't cast
between the two; use something like
http://docs.guava-libraries.googlecode.com/git/javadoc/com/google/common/primitives/Doubles.html#toArray(java.util.Collection)
...

On Sunday, 31 March 2013, Juan Pablo Cook wrote:

> Hi everyone! I need your help with this problem.
>
> I'm using PostgreSQL 9.2 Server & the latest jdbc
> driver: postgresql-9.2-1002.jdbc4.jar
>
> I have a table with this column array:
> -- histograma double precision[]
>
> And I want to retrieve this and cast into java to double[] but I can't.
>
> This is the extract of the code:
>
> Statement stat1 = con.createStatement();
> ResultSet rs1 = stat1.executeQuery("SELECT * FROM \"Vector\");
>
> while (rs1.next()) {
>
> double[] array = (double[]) rs1.getArray("histograma").getArray();
>
> }
>
> And the error:
> "
> Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException:
> [Ljava.lang.Double; cannot be cast to [D
> "
> Also I tried to do a for loop but didn't work.
>
> Can you help me?
>
> Thanks a lot! ;)
>
>