[rules-users] DSL: concatenating DSLs using "and" and "or"

[Chong Minsk Goh]

Hi,

We are currently using Drools to enable conditional routing for our
application. We are using DSLs to make it more user friendly.

Using Eclipse DSL editor, I noticed that there is an error (Duplicate
Declaration of variable) if I use "and" to concatenate 2 DSL statements
using the same variable name but this error does not appear if I use "or"

For example,

DSL Statement
[when]there is an "{id}"=$node: Node(nodeId=="{id}")

Using "and"
(there is an "{id}") and (there is an "{id}")

Using "or"
(there is an "{id}") or (there is an "{id}")

With the brackets, each DSL statement should be isolated right? But it is
kinda tricky as if we need to use 2 or more DSL statements together using
the same variable name.

Also, is there any means to create unique variables for use in DSL,
especially when joining for 2 or more DSL statements is required.


Best regards
Eric
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