001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 */
019
020package org.apache.isis.core.progmodel.facets.properties.validate;
021
022import java.lang.reflect.Method;
023import java.util.Collections;
024import java.util.List;
025
026import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
027import org.apache.isis.core.metamodel.adapter.util.AdapterInvokeUtils;
028import org.apache.isis.core.metamodel.facetapi.FacetHolder;
029import org.apache.isis.core.metamodel.facets.ImperativeFacet;
030import org.apache.isis.core.metamodel.facets.ImperativeFacet.Intent;
031
032public class PropertyValidateFacetViaMethod extends PropertyValidateFacetAbstract implements ImperativeFacet {
033
034    private final Method method;
035
036    public PropertyValidateFacetViaMethod(final Method method, final FacetHolder holder) {
037        super(holder);
038        this.method = method;
039    }
040
041    /**
042     * Returns a singleton list of the {@link Method} provided in the
043     * constructor.
044     */
045    @Override
046    public List<Method> getMethods() {
047        return Collections.singletonList(method);
048    }
049
050    @Override
051    public Intent getIntent(final Method method) {
052        return Intent.CHECK_IF_VALID;
053    }
054
055    @Override
056    public boolean impliesResolve() {
057        return true;
058    }
059
060    @Override
061    public boolean impliesObjectChanged() {
062        return false;
063    }
064
065    @Override
066    public String invalidReason(final ObjectAdapter owningAdapter, final ObjectAdapter proposedAdapter) {
067        return (String) AdapterInvokeUtils.invoke(method, owningAdapter, proposedAdapter);
068    }
069
070    @Override
071    protected String toStringValues() {
072        return "method=" + method;
073    }
074
075}