WarpPI/core/src/main/java/it/cavallium/warppi/flow/Consumer.java

36 lines
1.0 KiB
Java

package it.cavallium.warppi.flow;
import java.util.Objects;
public interface Consumer<T> {
/**
* Performs this operation on the given argument.
*
* @param t
* the input argument
*/
void accept(T t);
/**
* Returns a composed {@code Consumer} that performs, in sequence, this
* operation followed by the {@code after} operation. If performing either
* operation throws an exception, it is relayed to the caller of the
* composed operation. If performing this operation throws an exception,
* the {@code after} operation will not be performed.
*
* @param after
* the operation to perform after this operation
* @return a composed {@code Consumer} that performs in sequence this
* operation followed by the {@code after} operation
* @throws NullPointerException
* if {@code after} is null
*/
default Consumer<T> andThen(Consumer<? super T> after) {
Objects.requireNonNull(after);
return (T t) -> {
accept(t);
after.accept(t);
};
}
}