yueh
45 lines
1.2 KiB
Java
45 lines
1.2 KiB
Java
/*
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* This file is part of Applied Energistics 2.
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* Copyright (c) 2013 - 2017, AlgorithmX2, All rights reserved.
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*
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* Applied Energistics 2 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Applied Energistics 2 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
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*/
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package appeng.util;
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import java.util.function.Supplier;
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public class Lazy<T> implements Supplier<T>
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{
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private final Supplier<T> supplier;
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private T instance = null;
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public Lazy( final Supplier<T> supplier )
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{
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this.supplier = supplier;
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}
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@Override
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public T get()
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{
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if( this.instance == null )
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{
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this.instance = this.supplier.get();
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}
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return this.instance;
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}
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}
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