    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
    015    package org.apache.tapestry5.services;
    016
    017    import org.apache.tapestry5.ValueEncoder;
    018    import 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)
    024    public 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    }