Class Summary Class Description AbstractProcessingHandler<COMPONENT extends com.yahoo.processing.Processor>Superclass of handlers invoking some kind of processing chain. ProcessingHandlerA request handler which invokes a processing chain to produce the response. ProcessingResponseA response from running a request through processing. ProcessingTestDriverA helper for making processing requests and rendering their responses. ResponseHeadersHolds a set of headers which will be added to the Processing response. ResponseStatusA data item holding a response HTTP status code.