001// Copyright 2013 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
015package org.apache.tapestry5.services;
016
017/**
018 * An object capable of providing a user-presentable label from a value. A special case exists for
019 * {@linkplain org.apache.tapestry5.internal.services.EnumValueLabelProvider handling enum types}.
020 * 
021 * @since 5.4
022 */
023public interface ValueLabelProvider<V>
024{
025
026    /**
027     * Gets label from the value. The label is used as user-presentable label for a value.
028     * @param value the value to be label provided from
029     * @return
030     */
031    public String getLabel(V value);
032
033}