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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 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.cayenne.modeler.util;
import  org.scopemvc.core.Selector;
import  org.scopemvc.model.basic.BasicModel;

Scope active model that has an internal map of properties, firing change events when a value in the map changes.

Andrei Adamchik
public abstract class MapModel extends BasicModel {
    protected Map map;
    public MapModel() {
    public abstract Selector selectorForKey(String key);
    public abstract String defaultForKey(String key);
    public abstract String[] supportedProperties();

Saves properties in provided map.
    public void storeProperties(Map map) {
        String[] properties = supportedProperties();
        for (int i = 0; i < properties.lengthi++) {
            map.put(properties[i], this..get(properties[i]));
    public void setMap(Map map) {
        this. = map;
    public void setProperty(String keyString value) {
        if ( != null) {
            if (Util.nullSafeEquals(defaultForKey(key), value)) {
                value = null;
            Object oldValue = .put(keyvalue);
            if (!Util.nullSafeEquals(oldValuevalue)) {
                fireModelChange(VALUE_CHANGED, selectorForKey(key));
    public String getProperty(String key) {
        String value = ( != null) ? (String.get(key) : null;
        return (value != null) ? value : defaultForKey(key);
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