Language: Deutsch · English

GenerationProvider

Run generation steps from rules – type-safe via execute().

REFERENZ DEVELOPER UPDATED: JUL 2026 APPLIES TO NUCLOS 4.2026.X

On this page

What is the GenerationProvider for?

The GenerationProvider executes a generation step programmatically – e.g. „create invoice from order“.

execute(source, genClass)

Runs the generation step. Source and generated step class (from the generation.jar) must be type-compatible; returns the created target BO.

public static <S extends BusinessObject, T extends BusinessObject> T
        execute(S s, Class<? extends Generation<S,T>> genClass) throws BusinessException;

import org.nuclos.api.provider.GenerationProvider;

public class AuftragAbschliessen implements UpdateFinalRule {
    public void updateFinal(UpdateContext context) throws BusinessException { 
        Auftrag a = context.getBusinessObject(Auftrag.class);
        Rechnung r = GenerationProvider.execute(a, ErstelleRechnungAusAuftragGEN.class);
    }
}

Type safety

Due to type safety, wrong source/target types cause compile errors in the rule.