hlship-20080520/tapestry-ioc/src/main/java/org/apache/tapestry/ioc/ServiceResources.java

// Copyright 2006, 2007 The Apache Software Foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package org.apache.tapestry.ioc;

import org.slf4j.Logger;

/**
 * Contains resources that may be provided to a service when it initializes, which includes other
 * services defined in the registry. ServiceResources provides access to other services (it extends
 * {@link org.apache.tapestry.ioc.ObjectLocator}).
 */
public interface ServiceResources extends ObjectLocator
{
    /**
     * Returns the fully qualified id of the service.
     */
    String getServiceId();

    /**
     * Returns the service interface implemented by the service.
     */
    Class getServiceInterface();

    /**
     * Returns a Logger appropriate for logging messages. This includes debug level messages about
     * the creation and configuration of the underlying service, as well as debug, warning, or error
     * level messages from the service itself. Often service interceptors will make use of the
     * service's logger.
     */
    Logger getLogger();
}