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Interface Modifiable

Write BOs directly via save() and delete() – the modern way instead of the deprecated provider methods.

REFERENZ DEVELOPER STAND: JUL 2026 GILT FUER NUCLOS 4.2026.X

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What is Modifiable?

Since Nuclos 4.28 the rule API provides the Modifiable interface: business objects are written directly via save() and delete() – without the BusinessObjectProvider (whose static insert/update/delete are deprecated).

save()

Saves the BO. A new BO is created (and gets a new id), an existing one is updated.

void save() throws BusinessException;

delete(id)

Deletes the BO with this id. Static method – callable without an instance.

static <PK> void delete(PK id) throws BusinessException;

Example

Readable, modern rule code with get, changeStatus, save, refresh (from 4.32) and static delete:

import org.nuclos.api.exception.BusinessException;
public class UtilsNeu {

	public static void workAuftrag(Long id1, Long id2) throws BusinessException {
		Auftrag auftrag = Auftrag.get(id1);
		auftrag.changeStatus(AuftragSM.State_20);
		auftrag.setName("NeuerName");
		auftrag.save();
		auftrag.refresh(); // ab v4.32

		Auftrag.delete(id2);
	}
}