| // 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; |
| |
| /** |
| * Object passed into a service contributor method that allows the method provide contributed values to the service's |
| * configuration. |
| * |
| * A service can <em>collect</em> contributions in three different ways: |
| * <ul> |
| * <li>As an un-ordered collection of values</li> |
| * <li>As an ordered list of values (where each value has a unique id, pre-requisites and post-requisites)</li> |
| * <li>As a map of keys and values |
| * </ul> |
| * |
| * The service defines the <em>type</em> of contribution, in terms of a base class or service interface. Contributions |
| * must be compatible with the type. |
| */ |
| public interface MappedConfiguration<K, V> |
| { |
| |
| /** |
| * Adds a keyed object to the service's contribution. |
| * |
| * @param key |
| * unique id for the value |
| * @param value |
| * to contribute |
| * @throws IllegalArgumentException |
| * if key is not unique |
| */ |
| void add(K key, V value); |
| |
| /** |
| * Overrides an existing contribution by its key. |
| * |
| * @param key |
| * unique id of value to override |
| * @param value |
| * new value, or null to remove the key entirely |
| * @since 5.1.0.0 |
| */ |
| void override(K key, V value); |
| |
| /** |
| * Adds a keyed object as an instantiated instance (with dependencies injected) of a class. When the value |
| * type is an interface and the class to be contributed is a local file, |
| * then a reloadable proxy for the value class will be created and contributed. |
| * |
| * @param key |
| * unique id for the value |
| * @param clazz |
| * class to instantiate and contribute |
| * @since 5.1.0.0 |
| */ |
| void addInstance(K key, Class<? extends V> clazz); |
| |
| /** |
| * Overrides an existing contribution with a new instance. When the value |
| * type is an interface and the class to be contributed is a local file, |
| * then a reloadable proxy for the value class will be created and contributed. |
| * |
| * @param key |
| * unique id of value to override |
| * @param clazz |
| * class to instantiate as override |
| */ |
| void overrideInstance(K key, Class<? extends V> clazz); |
| } |