001// Copyright 2004, 2005 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.tapestry.services; 016 017import org.apache.hivemind.Location; 018 019/** 020 * @author Howard M. Lewis Ship 021 * @since 4.0 022 */ 023public interface InjectedValueProvider 024{ 025 /** 026 * Looks up a value in HiveMind using the object reference (as with HiveMind's built-in object 027 * translator). The module will always be the Tapestry module (which means that most service ids 028 * or configurations will have to be fully qualified. 029 * 030 * @param objectReference 031 * the reference to the HiveMind object to obtain, with a leading prefix indicating 032 * type (i.e., "service:", "configuration:", etc. 033 * @param location 034 * the location of the value, used if an error must be reported. 035 * @return the value 036 */ 037 038 public Object obtainValue(String objectReference, Location location); 039}