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/FailableToDoubleBiFunction.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.function.ToDoubleBiFunction;

/**
 * A functional interface like {@link ToDoubleBiFunction} that declares a {@code Throwable}.
 *
 * @param <T> the type of the first argument to the function
 * @param <U> the type of the second argument to the function
 * @param <E> Thrown exception.
 * @since 3.11
 */
@FunctionalInterface
public interface FailableToDoubleBiFunction<T, U, E extends Throwable> {

    /** NOP singleton */
    @SuppressWarnings("rawtypes")
    FailableToDoubleBiFunction NOP = (t, u) -> 0d;

    /**
     * Returns The NOP singleton.
     *
     * @param <T> the type of the first argument to the function
     * @param <U> the type of the second argument to the function
     * @param <E> Thrown exception.
     * @return The NOP singleton.
     */
    static <T, U, E extends Throwable> FailableToDoubleBiFunction<T, U, E> nop() {
        return NOP;
    }

    /**
     * Applies this function to the given arguments.
     *
     * @param t the first function argument
     * @param u the second function argument
     * @return the function result
     * @throws E Thrown when the function fails.
     */
    double applyAsDouble(T t, U u) throws E;
}

org/apache/commons/lang3/function/FailableToDoubleBiFunction.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
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