/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.felix.ipojo.extender;
/**
* A declaration is a creation instruction of an entity (Component type, Factory, Instance...).
* All declarations are exposed as services. <em>Processors</em> are tracking the adequate declaration type and create
* the entity.
* <p/>
* Declaration can be <em>bound</em> or <em>unbound</em> whether they are fulfilled. When they are unbound,
* a message or/and an error can be set.
*/
public interface Declaration {
/**
* Gets the declaration status.
*
* @return the current status. As Status are immutable, it returns a new object every time.
*/
Status getStatus();
/**
* Marks the declaration bound.
*/
void bind();
/**
* Unbinds the declaration.
*
* @param message an explanation
*/
void unbind(String message);
/**
* Unbinds the declaration
*
* @param message an explanation
* @param throwable an error
*/
void unbind(String message, Throwable throwable);
}