    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}