Drools should allow the default target to be specified outside the rule file
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Key: SM-1237
URL: https://issues.apache.org/activemq/browse/SM-1237
Project: ServiceMix
Issue Type: New Feature
Components: servicemix-drools
Affects Versions: 3.2.1
Reporter: Ron Gavlin
Drools should allow the default target to be specified outside the rule file.
This allows common rule sets to be reused across different process flows.
A common use case for this requirement is using Drools as a semantic validator.
In this case, each rule in the rule set generates a fault if it is satisfied.
If no rule is satisfied, the message is considered valid and forwarded to the
externally-supplied default target. The rule file used to implement this
semantic validator can be re-used across many process flows.
When implementing a semantic validator as described above, it would also be
useful for each rule to optionally forward "fault content" to the default
target instead of generating a JBI fault. In this case, the default target
would be responsible for distinguishing between fault and non-fault content and
handling it appropriately. A convenience method added to the JbiHelper, such as
faultToDefaultTarget(), would significantly help a rule writer implement such
functionality.
I intend to submit a patch for this issue in the near future.
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