functionalj.promise.OnStart Maven / Gradle / Ivy
// ============================================================================
// Copyright (c) 2017-2019 Nawapunth Manusitthipol (NawaMan - http://nawaman.net).
// ----------------------------------------------------------------------------
// MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// SOFTWARE.
// ============================================================================
package functionalj.promise;
import functionalj.function.FuncUnit0;
// This interface is used to document the second parameter on DeferAction.run and DeferAction.from.
public interface OnStart extends FuncUnit0 {
public static final OnStart DoNothing = ()->{};
public static OnStart run(FuncUnit0 runnable) {
if (runnable == null)
return null;
return runnable::run;
}
}