/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.isis.core.metamodel.facets.object.callbacks;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.facetapi.Facet;
import org.apache.isis.core.metamodel.facets.ImperativeFacetMulti;
import org.apache.isis.core.metamodel.spec.DomainModelException;
/**
* A {@link Facet} that represents some type of lifecycle callback on the object
* (eg about to be persisted).
*/
public interface CallbackFacet extends Facet, ImperativeFacetMulti {
public void invoke(ObjectAdapter object);
public static final class Util {
private Util() {
}
public static void callCallback(final ObjectAdapter object, final Class<? extends Facet> cls) {
final CallbackFacet facet = (CallbackFacet) object.getSpecification().getFacet(cls);
if (facet != null) {
try {
facet.invoke(object);
} catch (final RuntimeException e) {
throw new DomainModelException("Callback failed. Calling " + facet + " on " + object, e);
}
}
}
}
}