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• Consumer.java

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com.bluecatcode.common.functions.Consumer Maven / Gradle / Ivy

package com.bluecatcode.common.functions;

import javax.annotation.Nullable;

/**
 * Represents an operation that accepts a single input argument and returns no result.
 * Unlike most other functional interfaces, Consumer is expected to operate via side-effects.
 *
 * @see Interface Consumer
 *
 * @see Block
 * @see Effect
 * @see Function
 * @see com.google.common.base.Predicate
 * @see com.google.common.base.Supplier
 * @see java.util.concurrent.Callable
 * @param  the input type of method {@code accept}
 */
public interface Consumer extends CheckedConsumer {

    /**
     * Performs this operation on the given argument.
     * @param input the input to consume
     * @throws NullPointerException if {@code input} is null and this function does not accept null arguments
     * @throws RuntimeException if unable to compute
     */
    void accept(@Nullable T input) throws RuntimeException;
}