/**
* Performs operations upon an input object which may modify that object and/or
* external state (other objects).
*
* <p>All block implementations are expected to:
* <ul>
* <li>When used for aggregate operations upon many elements blocks
* should not assume that the {@code apply} operation will be called upon
* elements in any specific order.</li>
* </ul>
*
* @param <T> The type of input objects to {@code apply}.
*/
public interface TBlock<T> {
/**
* Performs operations upon the provided object which may modify that object
* and/or external state.
*
* @param t an input object
*/
void apply(T t);
/**
* Returns a Block which performs in sequence the {@code apply} methods of
* multiple Blocks. This Block's {@code apply} method is performed followed
* by the {@code apply} method of the specified Block operation.
*
* @param other an additional Block which will be chained after this Block
* @return a Block which performs in sequence the {@code apply} method of
* this Block and the {@code apply} method of the specified Block operation
*/
public default TBlock<T> chain(TBlock<? super T> other) {
return (T t) -> { apply(t); other.apply(t); };
}
}