private MaterialRevision filterUnsaved(MaterialRevision materialRevision) {
ArrayList<Modification> unsavedModifications = new ArrayList<>();
for (Modification modification : materialRevision.getModifications()) {
if (!modification.hasId()) {
unsavedModifications.add(modification);
}
}
return new MaterialRevision(materialRevision.getMaterial(), unsavedModifications);
}
public MaterialRevision addRevisionsWithModifications(
Material material, Modification... modifications) {
final MaterialRevision revision = filterUnsaved(new MaterialRevision(material, modifications));
if (revision.getModifications().isEmpty()) {
return revision;
}
transactionTemplate.execute(
new TransactionCallbackWithoutResult() {
@Override
protected void doInTransactionWithoutResult(TransactionStatus status) {
materialRepository.saveMaterialRevision(revision);
}
});
return revision;
}