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https://issues.apache.org/jira/browse/CAMEL-4169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13058236#comment-13058236
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Claus Ibsen commented on CAMEL-4169:
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We may consider adding support for other math operators such as
- + (plus)
- - (minus)
- * (multiply)
- / (division)
- % (modulus)
The trick is that the parser is currently reg exp based, so it takes a trained
reg exp eye to add those.
Likewise the ++ and -- operators or used as uni operator (eg it work on the
left hand side only) and this as well makes the reg exp parser a bit more
complicated.
And the right hand side / left hand side values must be converter to numeric
values, of course.
> simple calculations in route
> ----------------------------
>
> Key: CAMEL-4169
> URL: https://issues.apache.org/jira/browse/CAMEL-4169
> Project: Camel
> Issue Type: Improvement
> Components: camel-core
> Affects Versions: 2.7.2
> Reporter: Marco Westermann
> Priority: Minor
> Fix For: Future
>
>
> create calculation possibilities in simple language. For example to increment
> a header property: ${header.counter}++
> example:
> from("direct:getLastValueFromCache")
> .transform().simple("${header.lastProcessedOrder}++")
> .to("direct:createNewOrderWithNewProcessingNumber");
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