/*
* Copyright 2000-2017 JetBrains s.r.o.
*
* 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 com.intellij.openapi.components;
/**
* Project-level component's implementation class should implement the {@code ProjectComponent} interface.
* It should have constructor with a single parameter of {@link com.intellij.openapi.project.Project}
* type or with no parameters.
* <p>
* <strong>Note that if you register a class as a project component it will be loaded, its instance will be created and
* {@link #initComponent()} and {@link #projectOpened()} methods will be called for each project even if user doesn't use any feature of your
* plugin. So consider using specific extensions instead to ensure that the plugin will not impact IDE performance until user calls its
* actions explicitly.</strong>
*
* @see AbstractProjectComponent
*/
public interface ProjectComponent extends BaseComponent {
/**
* Invoked when the project corresponding to this component instance is opened.<p>
* Note that components may be created for even unopened projects and this method can be never
* invoked for a particular component instance (for example for default project).
*/
default void projectOpened() {
}
/**
* Invoked when the project corresponding to this component instance is closed.<p>
* Note that components may be created for even unopened projects and this method can be never
* invoked for a particular component instance (for example for default project).
*/
default void projectClosed() {
}
}