Re: [rules-users] Using field values of an ENUM in the decision table
Modifying the eval expression to include a check for NULL got it working:
when
$c: Computer()
eval( $c.getMemory()!=null && $c.getMemory().getValue().equals("512") )
then
System.out.println("XXXXXXXX THIS IS IT XXXXXXXXXXX" );
end
Visu Nageswaran wrote:
Hello, I am posting a simpler version of the actual requirement:
Class Computer has a field 'memory' of the enum type 'Memory' which is
defined over integer values
- - - - - - - - - -
public enum Memory{
MEM1(512), MEM2(1024), MEM3(2048);
public int value;
Memory(int i){this.value = i;}
public int getValue(){return value;}
}
- - - - - - - - - -
There is a requirement to model a decision table between memory and price
I am looking for the field constraint on the memory field to match to the
values:
memory.???--> Price
512 --> 100
1024 --> 200
2048 --> 300
I tried memory.name, memory.name(), memory.value, memory.getValue(); Does
this have to be done using template expressions say something like memory
== Memory.reverseLookupEnum($param)
Any help, pointers in this regard would be appreciated. thanks.
-Visu
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