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Apache Commons Lang v3 Source Code Files
Apache Commons Lang 3 is the 3rd version of Apache Commons Lang, which provides a host of helper utilities for the java.lang API.
Apache Commons Lang 3 Source Code files are provided in both binary packge (commons-lang3-3.12.0-bin.zip) and source package (commons-lang3-3.12.0-src.zip). You can download them at Apache Commons Lang Website.
Apache Commons Lang 3 Source Code has no dependencies and is compatible with Java 8 and newer versions. You can compile it to generate your own version of Apache Commons Lang 3 JAR file.
You can also browse the source code below:
✍: FYIcenter
⏎ org/apache/commons/lang3/function/FailableFunction.java
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 org.apache.commons.lang3.function; import java.util.Objects; import java.util.function.Function; /** * A functional interface like {@link Function} that declares a {@code Throwable}. * * @param <T> Input type 1. * @param <R> Return type. * @param <E> Thrown exception. * @since 3.11 */ @FunctionalInterface public interface FailableFunction<T, R, E extends Throwable> { /** NOP singleton */ @SuppressWarnings("rawtypes") FailableFunction NOP = t -> null; /** * Returns a function that always returns its input argument. * * @param <T> the type of the input and output objects to the function * @param <E> Thrown exception. * @return a function that always returns its input argument */ static <T, E extends Throwable> FailableFunction<T, T, E> identity() { return t -> t; } /** * Returns The NOP singleton. * * @param <T> Consumed type 1. * @param <R> Return type. * @param <E> Thrown exception. * @return The NOP singleton. */ static <T, R, E extends Throwable> FailableFunction<T, R, E> nop() { return NOP; } /** * Returns a composed {@code FailableFunction} like {@link Function#andThen(Function)}. * * @param <V> the output type of the {@code after} function, and of the composed function. * @return a composed {@code FailableFunction} like {@link Function#andThen(Function)}. * @param after the operation to perform after this one. * @throws NullPointerException when {@code after} is null. */ default <V> FailableFunction<T, V, E> andThen(final FailableFunction<? super R, ? extends V, E> after) { Objects.requireNonNull(after); return (final T t) -> after.apply(apply(t)); } /** * Applies this function. * * @param input the input for the function * @return the result of the function * @throws E Thrown when the function fails. */ R apply(T input) throws E; /** * Returns a composed {@code FailableFunction} like {@link Function#compose(Function)}. * * @param <V> the input type to the {@code before} function, and to the composed function. * @param before the operator to apply before this one. * @return a a composed {@code FailableFunction} like {@link Function#compose(Function)}. * @throws NullPointerException if before is null. * @see #andThen(FailableFunction) */ default <V> FailableFunction<V, R, E> compose(final FailableFunction<? super V, ? extends T, E> before) { Objects.requireNonNull(before); return (final V v) -> apply(before.apply(v)); } }
⏎ org/apache/commons/lang3/function/FailableFunction.java
Or download all of them as a single archive file:
File name: commons-lang3-3.12.0-sources.jar File size: 651724 bytes Release date: 2020-01-22 Download
⇒ Download and Install commons-lang3-3.8.1-bin.zip
⇐ Download Apache Commons Lang v3 Source Package
2022-10-19, 152162👍, 3💬
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