// 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.tapestry5.ioc.services;
import org.apache.tapestry5.ioc.ObjectProvider;
import org.apache.tapestry5.ioc.annotations.UsesMappedConfiguration;
/**
* Used to override built in services. Simply contribute a mapping from a type to an instance of that type. Anywhere
* that exact type is injected, without specifying markers or other annotations, the contributed instance will be
* injected, even if there is already a service that implements the interface.
*
* In fact, this is <em>not</em> limited to overriding services; any object that can be injected based solely on type
* can be contributed.
*
* @since 5.1.0.0
*/
@UsesMappedConfiguration(key = Class.class, value = Object.class)
public interface ServiceOverride
{
/**
* Returns a provider based on the configuration; this is wired into the
* {@link org.apache.tapestry5.ioc.services.MasterObjectProvider}'s configuration.
*/
ObjectProvider getServiceOverrideProvider();
}