Examples of org.apache.isis.core.progmodel.facets.object.validate.ValidateObjectFacet

Package org.apache.isis.core.progmodel.facets.object.validate

Examples of org.apache.isis.core.progmodel.facets.object.validate.ValidateObjectFacet

org.apache.isis.core.progmodel.facets.object.validate.ValidateObjectFacet
Mechanism for determining whether this object is in a valid state, for example so that it can be persisted or updated.
Even though all the properties of an object may themselves be valid, there could be inter-property dependencies which are invalid. For example fromDate > toDate would probably represent an invalid state.
In the standard Apache Isis Programming Model, typically corresponds to the validate method. @see PersistingCallbackFacet @see UpdatingCallbackFacet


                @Override
                public void validate(final Form<?> form) {
                    final EntityModel entityModel = (EntityModel) getModel();
                    final ObjectAdapter adapter = entityModel.getObject();
                    final ValidateObjectFacet facet = adapter.getSpecification().getFacet(ValidateObjectFacet.class);
                    if (facet == null) {
                        return;
                    }
                    final String invalidReasonIfAny = facet.invalidReason(adapter);
                    if (invalidReasonIfAny != null) {
                        Session.get().getFeedbackMessages().add(new FeedbackMessage(form, invalidReasonIfAny, FeedbackMessage.ERROR));
                    }
                }
            });

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                @Override
                public void validate(final Form<?> form) {
                    final EntityModel entityModel = (EntityModel) getModel();
                    final ObjectAdapter adapter = entityModel.getObject();
                    final ValidateObjectFacet facet = adapter.getSpecification().getFacet(ValidateObjectFacet.class);
                    if (facet == null) {
                        return;
                    }
                    final String invalidReasonIfAny = facet.invalidReason(adapter);
                    if (invalidReasonIfAny != null) {
                        Session.get().getFeedbackMessages()
                            .add(new FeedbackMessage(form, invalidReasonIfAny, FeedbackMessage.ERROR));
                    }
                }

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