topic Re: Using the same name for a variable in multiple components in Talend Studio

Using the same name for a variable in multiple components

_AnonymousUser — Sat, 16 Nov 2024 10:29:44 GMT

Hello,

I have a job which uses multiple tJavaRow components. I would like to use the same variable names in each component. However, they should point to the variable as defined in that component, is that possible? If I recreate the same variable name I get the error "Duplicate Local Variable".
Thanks,
Doug

Re: Using the same name for a variable in multiple components

Anonymous — Thu, 21 Jul 2016 08:33:56 GMT

Hi,
You can define a context variable and use this variable on different/multiple components.
[font=Verdana, Helvetica, Arial, sans-serif] For more information, please take a look at document about:TalendHelpCenter:Using contexts and variables.[/font]
[font=Verdana, Helvetica, Arial, sans-serif] Best regards[/font]
[font=Verdana, Helvetica, Arial, sans-serif] Sabrina[/font]

Re: Using the same name for a variable in multiple components

_AnonymousUser — Tue, 26 Jul 2016 17:11:22 GMT

Thanks for that. If I use that context variable in each component, can I assign different values to that variable per component?

Re: Using the same name for a variable in multiple components

Anonymous — Tue, 26 Jul 2016 21:28:51 GMT

You can also use global variables ( same as in java) but these are local to the job

Syntax is globalMap.get("X") , globalMap.put("X","")

Re: Using the same name for a variable in multiple components

Anonymous — Wed, 27 Jul 2016 09:57:24 GMT

Hi,
The tcontextLoad/ Implicit context load is used to load value of context variable from properties file.
Here is a related scenario in component reference:TalendHelpCenter:tContextLoad.
Best regards
Sabrina

Re: Using the same name for a variable in multiple components

_AnonymousUser — Wed, 27 Jul 2016 16:38:35 GMT

ds123 wrote:
Thanks for that. If I use that context variable in each component, can I assign different values to that variable per component?

if I create a context variable I have 1 variable throughout my job. I want one variable per tJavaRow component, of which the scope is limited to the tJavaRow component. the context variable's scope is job-wide, right?

Re: Using the same name for a variable in multiple components

_AnonymousUser — Thu, 28 Jul 2016 21:25:27 GMT

ds123 wrote:

xdshi wrote:
Hi,
You can define a context variable and use this variable on different/multiple components.
[font=Verdana, Helvetica, Arial, sans-serif] For more information, please take a look at document about:TalendHelpCenter:Using+contexts+and+variables.[/font]
[font=Verdana, Helvetica, Arial, sans-serif] Best regards[/font]
[font=Verdana, Helvetica, Arial, sans-serif] Sabrina[/font]

if I create a context variable I have 1 variable throughout my job. I want one variable per tJavaRow component, of which the scope is limited to the tJavaRow component. the context variable's scope is job-wide, right?

Any ideas on this one?