topic Re: instruction while in Talend in Talend Studio

instruction while in Talend

Anonymous — Sat, 16 Nov 2024 14:27:46 GMT

hi guys,
i'm a newby and i'm a problem with the instruction while in tMap in Talend (java)
i've setted the variables:
a ------>new Integer(row1.x)*1000
b ------>new Integer(row1.y)*1000
c ------>new Date(new Long(Var.a)).getDay()
d -----> 0
then i've setted the column:
while (Var.a<Var.b)
{
Var.a=Var.a+86400000;
if (new Boolean(Var.c<6 && Var.c>0)) Var.d=Var.d+28800000;
}
where is the problem(s)?

Re: instruction while in Talend

Anonymous — Tue, 12 Feb 2008 09:58:08 GMT

i don't manage the instrution while, if, for, etc. there is a documentation where i can find the explanation of their use?... in java not in perl, thanks in advance.

Re: instruction while in Talend

Anonymous — Wed, 13 Feb 2008 03:34:51 GMT

Hi
In tMap, you can use the column expression like this: Var.a<Var.b?myValue1:myValue2
Best regards
shong

Re: instruction while in Talend

Anonymous — Wed, 13 Feb 2008 14:37:58 GMT

Hi
In tMap, you can use the column expression like this: Var.a<Var.b?myValue1:myValue2
Best regards
shong

ok, in fact is the only expression that is right but if i want use it in a "while" or "for" expression for example:
while (Var.a<Var.b)
{
Var.a=Var.a+86400000;
if (Var.c!=0) Var.d=Var.d+28800000;
}
i must use "if" because the expression with ? it give error (misplaced construct) and also with "if" it give the same error... where i'm wrong?
p.s.: all Var are int

Re: instruction while in Talend

Anonymous — Mon, 18 Feb 2008 08:50:03 GMT

so, none has ever used the "while" or "for" expression (java) in Talend? what is the correct syntax?

Re: instruction while in Talend

amaumont — Mon, 18 Feb 2008 12:36:29 GMT

Use a routine and code your while into, then call this routine from tMap.

Re: instruction while in Talend

Anonymous — Mon, 18 Feb 2008 13:35:54 GMT

Use a routine and code your while into, then call this routine from tMap.

a routine?
please where can i find information about how to use a routine?

Re: instruction while in Talend

amaumont — Mon, 18 Feb 2008 15:13:05 GMT

You can download the documentation, and find near page 12, in topic Repository > Codes > Routines a short description of this functionality.
You will be able to create new (static) methods in a class and call it from tMap. Take example on System routines if you wish to use in tRowGenerator or other components which need to read parameters from routines.
I created a feature issue 3114 to document more precisely this subject.
You can also see this post http://talendforge.org/forum/viewtopic.php?id=2159.

Re: instruction while in Talend

Anonymous — Wed, 20 Feb 2008 10:33:40 GMT

Use a routine and code your while into, then call this routine from tMap.

thanks, it works

Re: instruction while in Talend

Anonymous — Tue, 07 Aug 2018 20:14:38 GMT

are there someone who find a solution to use while instruction in tmap talend ????

Re: instruction while in Talend

Anonymous — Thu, 09 Aug 2018 04:01:11 GMT

Hello Rabeb,

Here are online documentations about TalendHelpCenter:tMap scenarios

and https://community.talend.com/t5/Design-and-Development/tMap-expression-syntax/ta-p/21575

What's your job requirement about while in tMap? Does the If / else statement work for you?

Best regards

Sabrina

Re: instruction while in Talend

Anonymous — Fri, 10 Aug 2018 09:06:22 GMT

thanks for your reply ! yes if/else works well i need the structure of while instruction how can i use it with tMap ?? and thank's