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/*
 * Copyright (C) 2007 The Guava Authors
 *
 * 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.google.common.base;

import com.google.common.annotations.GwtCompatible;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Legacy version of {@link java.util.function.Supplier java.util.function.Supplier}. Semantically,
 * this could be a factory, generator, builder, closure, or something else entirely. No guarantees
 * are implied by this interface.
 *
 * 

The {@link Suppliers} class provides common suppliers and related utilities. * *

As this interface extends {@code java.util.function.Supplier}, an instance of this type can be * used as a {@code java.util.function.Supplier} directly. To use a {@code * java.util.function.Supplier} in a context where a {@code com.google.common.base.Supplier} is * needed, use {@code supplier::get}. * *

See the Guava User Guide article on the use of {@code Function}. * * @author Harry Heymann * @since 2.0 */ @GwtCompatible @FunctionalInterface @ElementTypesAreNonnullByDefault public interface Supplier extends java.util.function.Supplier { /** * Retrieves an instance of the appropriate type. The returned object may or may not be a new * instance, depending on the implementation. * * @return an instance of the appropriate type */ @Override @ParametricNullness T get(); }





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