001// Copyright 2007, 2008, 2009, 2010 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
017import org.apache.tapestry5.ValueEncoder;
018import org.apache.tapestry5.ioc.annotations.UsesMappedConfiguration;
019
020/**
021 * A source for value encoders based on a property type.
022 */
023@UsesMappedConfiguration(key=Class.class, value=ValueEncoderFactory.class)
024public interface ValueEncoderSource
025{
026    /**
027     * Gets or creates a value encoder for the indicated type.  ValueEncoders are cached.
028     *
029     * @param type type of value to be encoded and decoded
030     * @return the value encoder
031     */
032    <T> ValueEncoder<T> getValueEncoder(Class<T> type);
033}