WSO2 BPS - Sample Guide - Repeat Until
Sample Guide - Repeat Until Table of Content
Explains the functionality of <repeatUntil/> construct, where the repetitive task
should be executed at least once. This functionality also can be achieved via <while/>.
But how the logical condition used in both cases differs.
Log in into BPS server admin console.
Under Business Processes -> Add BPEL.
Upload the TestRepeatUntil.zip , (all samples are located at our sample repository .)
Under the Business Processes -> Processes.
Under the WSDL details widget -> Create instance
Refer TestRepeatUntil.zip
eg -
< repeatUntil name = " RepeatUntil " > < assign validate = " no " name = " IncrementCounter " > < copy > < from > <![CDATA[ $counter + 1]]> </ from > < to variable = " counter " > </ to > </ copy > </ assign > < condition > <![CDATA[ $counter >= 10]]> </ condition > </ repeatUntil > Here we increment counter variable until it's equal to 10.
If you refer TestWhile.zip, the logical condition in <while/> is exactly the
negation used in <repeatUntil/> to do the same thing.
eg -
< while name = " While " > < condition > <![CDATA[ $counter < 10 ]]> </ condition > < assign validate = " no " name = " IncrementInput " > < copy > < from > <![CDATA[ $counter + 1]]> </ from > < to variable = " counter " > </ to > </ copy > </ assign > </ while > 