Re: [Py4j-users] Create "new <object>"?

[Alex G. <ale...@ne...>]

30.03.2015, 19:35, Israel Brewster kirjoitti:
> Except that looses the "new" command. That is, my java code is:
>
> InputStream data=new ByteArrayInputStream(jsonData.getBytes("UTF-8"));
>
> Not
>
> InputStream data=ByteArrayInputStream(jsonData.getBytes("UTF-8"));
>
> Unless in Java that doesn't matter? Or perhaps I'm missing something 
> about the way py4j works, i.e. there's an implicit "new" call?
Classes are instantiated with py4j exactly the same way as in Python 
generally: by calling the class itself. In Java, the "new" operator is 
not optional. In Python (and py4j), it simply doesn't exist.
>
> -----------------------------------------------
> Israel Brewster
> Systems Analyst II
> Ravn Alaska
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>
>> On Mar 27, 2015, at 3:42 PM, Barthelemy Dagenais 
>> <bar...@in... <mailto:bar...@in...>> wrote:
>>
>> Hi,
>>
>> how about:
>>
>> data = 
>> gateway.jvm.java.io.ByteArrayInputStream(jsonData.getBytes("UTF-8"))
>>
>> References in the documentation:
>> http://py4j.sourceforge.net/faq.html#how-to-call-a-constructor
>> http://py4j.sourceforge.net/getting_started.html#collections-help-and-constructors
>>
>> On Fri, Mar 27, 2015 at 1:36 PM, Israel 
>> Brewster<is...@ra... <mailto:is...@ra...>>wrote:
>>
>>     Is there a way in py4j to call the java "new" command? That is,
>>     in java I have some code like:
>>
>>     InputStream data=new ByteArrayInputStream(jsonData.getBytes("UTF-8"));
>>
>>     Is there a way to pull that across to the python side, or do I
>>     just have to make a bunch of utility functions in Java for this?
>>
>>     I'm trying to make the Jasper Reports library available to my
>>     python code, and while it works for the most part I haven't yet
>>     figured out object creation. Thanks.
>>     -----------------------------------------------
>>     Israel Brewster
>>     Systems Analyst II
>>     Ravn Alaska
>>     5245 Airport Industrial Rd
>>     Fairbanks, AK 99709
>>     (907) 450-7293 <tel:%28907%29%20450-7293>
>>     -----------------------------------------------
>>
>>
>>
>>
>>
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