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Hi,

I'm calculating product systems' impacts in Java, using directly the olca-core maven module. As far as I know, this should be done like this :

```
ProductSystem system = ...
CalculationSetup setup = new CalculationSetup(CalculationType.
SIMPLE_CALCULATION, system);
setup.impactMethod = ...
SystemCalculator calc = new SystemCalculator(mCache, new DenseSolver());
SimpleResult r = calc.calculateSimple(setup);

```

But, instead of SIMPLE_CALCULATION, I could have used CONTRIBUTION_ANALYSIS or UPSTREAM_ANALYSIS.
Moreover, instead of calculateSimple(), I could have used calculateContributions() or calculateUpstream().

Then, I'm wondering whether the three values of CalculationType can be combined with the three methods of the calculator, or whether SIMPLE_CALCULATION should go with calculateSimple(), and so on. I guess it's the case, but I'm not sure.

Thank you very much in advance for an answer,
Best,

Clement

in openLCA by (690 points)
by (690 points)
edited by
Ok, I just saw this commit : https://github.com/GreenDelta/olca-modules/commit/d2151fa639a00c2d15010f827235a2082a370248#diff-529c9354f39c00ffc4b66129ffa607ea

Then I guess the answer is you are not supposed to combine as you want the calculation type and the calculation method...

But I'm still wondering about the "authorized" combinations.
by (690 points)
Hi,
I hope you will see this but I really would appreciate if you could help me with my question, we are stuck while we don't know how to config the calculation properly.

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