/*
* Copyright 2000-2015 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.application;
import com.intellij.openapi.extensions.ExtensionPointName;
import com.intellij.openapi.progress.ProgressIndicator;
import org.jetbrains.annotations.NotNull;
/**
* An activity to be executed in background on IDE startup. It may load some classes or other configuration
* so that when something (e.g. an action) is invoked the first time in the UI, there's no visible pause
* while required stuff is being lazily loaded.
*
* @author peter
* @since 144
*/
public abstract class PreloadingActivity {
public static final ExtensionPointName<PreloadingActivity> EP_NAME = ExtensionPointName.create("com.intellij.preloadingActivity");
/**
* Perform the preloading
* @param indicator a progress indicator for the background preloading process.
* Canceled if the application has exited.
* Long actions should periodically perform <code>indicator.checkCanceled()</code>.
*/
public abstract void preload(@NotNull ProgressIndicator indicator);
}