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// Copyright 2007 The Apache Software Foundation
//
// Licensed 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.tapestry;

import java.util.Map;

/**
 * A single option within a {@link OptionGroupModel}. Corresponds closely to the [X]HTML
 * <option> element.
 */
public interface OptionModel
{
    /** The localized, user-presentable label for the option. */
    String getLabel();

    /** If true, then a disabled attribute will be rendered with the <option>. */
    boolean isDisabled();

    /** Additional attributes to render within the <option>. May return null. */
    Map<String, String> getAttributes();

    /**
     * The server-side value represented by this option. This is used to determine which option will
     * be selected. It is also used, via {@link ValueEncoder#toClient(Object)}, to generate
     * the client-side value attribute.
     */
    Object getValue();
}
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