    001    // Copyright 2008 The Apache Software Foundation
    002    //
    003    // Licensed under the Apache License, Version 2.0 (the "License");
    004    // you may not use this file except in compliance with the License.
    005    // You may obtain a copy of the License at
    006    //
    007    //     http://www.apache.org/licenses/LICENSE-2.0
    008    //
    009    // Unless required by applicable law or agreed to in writing, software
    010    // distributed under the License is distributed on an "AS IS" BASIS,
    011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012    // See the License for the specific language governing permissions and
    013    // limitations under the License.
    014
    015    package org.apache.tapestry5;
    016
    017    import java.util.Map;
    018
    019    /**
    020     * Base class for implementing {@link OptionModel}.  Subclasses must implement {@link
    021     * org.apache.tapestry5.OptionModel#getLabel()} and {@link org.apache.tapestry5.OptionModel#getValue()} }.
    022     */
    023    public abstract class AbstractOptionModel implements OptionModel
    024    {
    025        /**
    026         * Returns false.
    027         */
    028        public boolean isDisabled()
    029        {
    030            return false;
    031        }
    032
    033        /**
    034         * Returns null.
    035         */
    036        public Map<String, String> getAttributes()
    037        {
    038            return null;
    039        }
    040    }