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ThreadPoolProvider.java
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ThreadPoolProvider.java
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/*
* Copyright 2015 Austin Keener, Michael Ritter, Florian Spieß, and the JDA contributors
*
* 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 net.dv8tion.jda.api.sharding;
import javax.annotation.Nullable;
import java.util.concurrent.ExecutorService;
/**
* Called by {@link DefaultShardManager} when building a JDA instance.
* <br>Every time a JDA instance is built, the manager will first call {@link #provide(int)} followed by
* a call to {@link #shouldShutdownAutomatically(int)}.
*
* @param <T>
* The type of executor
*/
public interface ThreadPoolProvider<T extends ExecutorService>
{
/**
* Provides an instance of the specified executor, or null
*
* @param shardId
* The current shard id
*
* @return The Executor Service
*/
@Nullable
T provide(int shardId);
/**
* Whether the previously provided executor should be shutdown by {@link net.dv8tion.jda.api.JDA#shutdown()}.
*
* @param shardId
* The current shard id
*
* @return True, if the executor should be shutdown by JDA
*/
default boolean shouldShutdownAutomatically(int shardId)
{
return false;
}
}