# Package com.google.web.bindery.requestfactory.server

Server side classes for mediating between the client side and the persistent datastore.

See: Description

- Interface Summary
  Interface | Description
  --- | ---
  ExceptionHandler | Handles an exception produced while processing a request.
  RequestFactoryJarExtractor.Emitter | Describes a way to emit the contents of a classpath, typically into a JAR or filesystem directory.
  RequestFactoryJarExtractor.Loader | Abstracts the mechanism by which class files are loaded.

- Class Summary
  Class | Description
  --- | ---
  DefaultExceptionHandler | Default implementation for handling exceptions thrown while processing a request.
  FindServiceLayer | Allows the use of a very short operation name for the find method.
  LocatorServiceLayer | Adds support to the ServiceLayer chain for using `Locator` and `ServiceLocator` helper objects.
  Logging | Server side object that handles log messages sent by `RequestFactoryLogHandler` .
  ReflectiveServiceLayer | Implements all methods that interact with domain objects.
  RequestFactoryJarExtractor | Used to extract RequestFactory client jars from `gwt-user.jar`.
  RequestFactoryJarExtractor.ClassLoaderLoader | An implementation of `RequestFactoryJarExtractor.Loader` that uses a `ClassLoader` to retrieve the class files.
  RequestFactoryJarExtractor.ErrorContext | Improves error messages by providing context for the user.
  RequestFactoryJarExtractor.JarEmitter | An Emitter implementation that creates a jar file.
  RequestFactoryServlet | Handles GWT RequestFactory JSON requests.
  RequestState | Encapsulates all state relating to the processing of a single request so that the SimpleRequestProcessor can be stateless.
  Resolver | Responsible for converting between domain and client entities.
  ResolverServiceLayer | Implements all of the resolution methods in ServiceLayer.
  ServiceLayer | The ServiceLayer mediates all interactions between the `SimpleRequestProcessor` and the domain environment.
  ServiceLayerCache | A cache for idempotent methods in `ServiceLayer`.
  ServiceLayerDecorator | Users that intend to alter how RequestFactory interacts with the domain environment can extend this type and provide it to `ServiceLayer.create(ServiceLayerDecorator...)`.
  SignatureAdapter | An empty implementation of SignatureVisitor, used by `RequestFactoryInterfaceValidator`.
  SimpleRequestProcessor | Processes request payloads from a RequestFactory client.
  SimpleRequestProcessor.IdToEntityMap | This parameterization is so long, it improves readability to have a specific type.

- Enum Summary
  Enum | Description
  --- | ---
  RequestFactoryJarExtractor.Mode | Controls what is emitted by the tool.

- Exception Summary
  Exception | Description
  --- | ---
  DeadEntityException | Indicates the user attempted to perform an operation on an irretrievable entity.
  ReportableException | Encapsulates exceptions that should be thrown back to the client.
  UnexpectedException | Encapsulates exceptions that indicate something went wrong in RequestFactory code.

## Package com.google.web.bindery.requestfactory.server Description

Server side classes for mediating between the client side and the persistent datastore. This package contains classes that can receive client side read and write requests in the JSON format, perform the necessary operations on the persistent datastore, and return the results in JSON format.

Since:
  GWT 2.1