Eclipse Community Forums: Eclipse Platform

Help

Home

Home » Eclipse Projects » Eclipse Platform » dynamic instanceof

Show: Today's Messages :: Show Polls :: Message Navigator

dynamic instanceof [message #325832]

Thu, 28 February 2008 13:29

Oelerink

Messages: 129
Registered: July 2009

Senior Member

Hello,

i want to use dynamically instanceof in java. I have a string with the
classname to compare. It is possible to get the instance of the class
over this string dynamically?

Greetings

Report message to a moderator

Re: dynamic instanceof [message #325833 is a reply to message #325832]

Thu, 28 February 2008 13:36

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

Class.forName().newIntance() but this is a general java beginner
question whereas this forum is about Eclipse Technology

Jörg schrieb:
> Hello,
>
> i want to use dynamically instanceof in java. I have a string with the
> classname to compare. It is possible to get the instance of the class
> over this string dynamically?
>
> Greetings

--
B e s t S o l u t i o n . at
------------------------------------------------------------ --------
Tom Schindl JFace-Committer
------------------------------------------------------------ --------

Report message to a moderator

Re: dynamic instanceof [message #325835 is a reply to message #325833]

Thu, 28 February 2008 14:07

Oelerink

Messages: 129
Registered: July 2009

Senior Member

ah sorry, i thought it wasn't that easy, cause i searched a little bit
longer. But Class.forName().newIntance() give me a syntax error with
instance of. i had to do this:

if ( Class.forName ( classNameString ).isInstance ( myObject ) )

Thanks for the trouble

Tom Schindl schrieb:
> Class.forName().newIntance() but this is a general java beginner
> question whereas this forum is about Eclipse Technology
>
> Jörg schrieb:
>> Hello,
>>
>> i want to use dynamically instanceof in java. I have a string with the
>> classname to compare. It is possible to get the instance of the class
>> over this string dynamically?
>>
>> Greetings
>
>

Report message to a moderator

Re: dynamic instanceof [message #325836 is a reply to message #325835]

Thu, 28 February 2008 14:16

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

ah I thought you wanted to create a new instance from a string. The
below is correct of course.

Tom

Jörg schrieb:
> ah sorry, i thought it wasn't that easy, cause i searched a little bit
> longer. But Class.forName().newIntance() give me a syntax error with
> instance of. i had to do this:
>
> if ( Class.forName ( classNameString ).isInstance ( myObject ) )
>
> Thanks for the trouble
>
> Tom Schindl schrieb:
>> Class.forName().newIntance() but this is a general java beginner
>> question whereas this forum is about Eclipse Technology
>>
>> Jörg schrieb:
>>> Hello,
>>>
>>> i want to use dynamically instanceof in java. I have a string with
>>> the classname to compare. It is possible to get the instance of the
>>> class over this string dynamically?
>>>
>>> Greetings
>>
>>

--
B e s t S o l u t i o n . at
------------------------------------------------------------ --------
Tom Schindl JFace-Committer
------------------------------------------------------------ --------

Report message to a moderator

Re: dynamic instanceof [message #325838 is a reply to message #325835]

Thu, 28 February 2008 15:13

Danail Nachev

Messages: 110
Registered: July 2009

Senior Member

It would be good if you know which bundle provides this class and use
Bundle.loadClass() instead. If the class in question will always be
available in the same bundle it doesn't matter:)

Jörg wrote:
> ah sorry, i thought it wasn't that easy, cause i searched a little bit
> longer. But Class.forName().newIntance() give me a syntax error with
> instance of. i had to do this:
>
> if ( Class.forName ( classNameString ).isInstance ( myObject ) )
>
> Thanks for the trouble
>
> Tom Schindl schrieb:
>> Class.forName().newIntance() but this is a general java beginner
>> question whereas this forum is about Eclipse Technology
>>
>> Jörg schrieb:
>>> Hello,
>>>
>>> i want to use dynamically instanceof in java. I have a string with
>>> the classname to compare. It is possible to get the instance of the
>>> class over this string dynamically?
>>>
>>> Greetings
>>
>>

Report message to a moderator

Previous Topic:	compare: switch used comparer
Next Topic:	Command in context menu???

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Wed Jul 17 11:20:03 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter