49 lines
1.4 KiB
Java
49 lines
1.4 KiB
Java
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/*
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* Copyright 2016 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.util;
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/**
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* Represents a supplier of {@code boolean}-valued results.
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*/
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public interface BooleanSupplier {
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/**
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* Gets a boolean value.
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* @return a boolean value.
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* @throws Exception If an exception occurs.
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*/
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boolean get() throws Exception;
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/**
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* A supplier which always returns {@code false} and never throws.
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*/
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BooleanSupplier FALSE_SUPPLIER = new BooleanSupplier() {
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@Override
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public boolean get() {
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return false;
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}
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};
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/**
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* A supplier which always returns {@code true} and never throws.
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*/
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BooleanSupplier TRUE_SUPPLIER = new BooleanSupplier() {
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@Override
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public boolean get() {
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return true;
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}
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};
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}
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