public interface ExceptionHandler
CompletionPolicy will be used to decide whether to end a batch when
 there is no exception, and the ExceptionHandler is used to signal an
 abnormal ending - an abnormal ending would result in an
 ExceptionHandler throwing an exception. The caller will catch and
 re-throw it if necessary.| Modifier and Type | Method and Description | 
|---|---|
| void | handleException(RepeatContext context,
               java.lang.Throwable throwable)Deal with a Throwable during a batch - decide whether it should be
 re-thrown in the first place. | 
void handleException(RepeatContext context, java.lang.Throwable throwable) throws java.lang.Throwable
context - the current RepeatContext. Can be used to store
 state (via attributes), for example to count the number of occurrences of
 a particular exception type and implement a threshold policy.throwable - an exception.java.lang.Throwable - implementations are free to re-throw the exception