Relational operator to compare value between string

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1

Hi All,

I have two variable and i want to compare it as a string. I use BRANCH and set evaluate labels to “true” and i put relational operator as a condition. But i always got a problem if the value of those 2 variable is a number.
Let say i have below variable:

  • string1 = 000123
  • string2 = 123

when i compare it using relational operator %string1%==%string2%, the result is always equals. I read the service development guide and found that it is because wM treating those two value as a number. But what I want is to compare it as a string. I’ve tried using %‘string1’%=%‘string2’% or %“string1”%=%“string2”% as suggested in the guide but still not work.
I’m using wM v9.5.1.0.

really need your suggestion… thanks.

2

Its strange in webMethods. :lol:

if 123 and 0123 are integer types they are equal. If they are string they are not equal.

To check this functionality you can write your own java service

// pipeline
IDataCursor pipelineCursor = pipeline.getCursor();
	String	inString1 = IDataUtil.getString( pipelineCursor, "inString1" );
	String	inString2 = IDataUtil.getString( pipelineCursor, "inString2" );
Boolean	flag;

flag=	inString1.equals(inString2);


// pipeline

IDataUtil.put( pipelineCursor, "flag", flag );
pipelineCursor.destroy();
3

Hi Mahesh,

Thank you for your fast response.
But my problem is, i unable to do comparison between 2 variable using relational operator %var1%==%var2% if those 2 variable value is a number.

Actually I need to create some validation to compare input from the filename (var1) with the value in database (var2).
So I create one BRANCH and set evaluate labels as true. Inside that BRANCH I put two maps with condition.
the label of first map is using relational operation, %var1%==%var2%, for the second map i’m using $default.
If the value is equal, then it will pass the validation. but if it is not, the it wont pass validation

-BRANCH
- %var1%==%var2%[1st condition → filename is valid]
- $default [2nd condition → filename invalid]

case1 :
Given below values,
var1 = "0RH0001"
var2 = "0KB0001"

Result : it wont pass the validation since 0RH0001 is not equals to 0KB0001, so it will always go to the $default map.

case2 :
Given below values (number),
var1 = "0001234"
var2 = "1234"

Result : It will pass the validation, by right it shouldn’t.

I’ve read service development guide for relational operator and found that it is because wM compare those value as a number, so 0001234 is equals to 1234.

This is what i read from the guide

So i change the condition and put quotes as suggested, but it is still not working.

Hope you understand my problem, really sorry if i make you confuse. Still learning.

thanks

4

Hi Mahesh,

Yap, i’m planning to create my own java services to do the comparison also.
But I just wonder, in the documentation, it is said that we can make wM to stop from treating the value as a number by using quotes, but when i tried, it can’t. wM still treating the value as a number.
do i miss something?? :smiley:

5

Before it reaches the Branch step try to concat " or ’ before and after file names

var1 = “0001234”
var2 = “1234”

then in Branch use %var1%==%var2%

6

I see you are right as per the guide but webMethods IS is not behaving as documented. May be you can use the alternate solution as of now.

7

Hi Sreenivas,

Yap, that can be one of the alternate solution too, Thanks for your input.

Hi Mahesh,

Yap, i guess i will handle this using my own service… Thanks yah

8

Thanks… now you know the solution. Have a nice day :slight_smile:

9

Hi Mahesh,

Just want to share, I finally use lexical operator to solve this solution.

%var1%L_EQUALS%var2%, If both value var1 & var2 is number, wM will compare it as a string.

thanks

1 Like
10

Even I tried the same it works but its not a good practice, we use lexical operators in trigger filter conditions. I have never used it on IS.

11

Hi Mahesh,

May I know the reason why it is not a good practice? what is the impact? for my consideration…

I decided to use lexical operator because I want to compare the value as String only, and this is the only solution with the minimum changes, :smiley:

12

Hmm… I have never used it and never saw using lexical operators as evaluate expression for branching on IS in my experience.

If its working please go ahead :slight_smile: