org.zodiac.sdk.async.promises.FailureHandler Maven / Gradle / Ivy

package org.zodiac.sdk.async.promises;

/**
 * Handles the case that a Logic fails, either by throwing an exception
 * or passing a throwable to its trigger's trigger() method.
 *
 */
public interface FailureHandler {

    /**
     * Called when something fails.
     * 
     * @param  The input type of the logic that failed
     * @param key The key, if any
     * @param input The input data at the time of failure
     * @param context {@link PromiseContext}
     * @param thrown The exception that was encountered
     * @return {@code True} if the promise is a chained one, and earlier elements in
     * the chain may also have failure handlers that should be notified
     */
     boolean onFailure(PromiseContext.Key key, T input, Throwable thrown, PromiseContext context);

}