| Package | Description | 
|---|---|
| org.apache.reef.driver.context | |
| org.apache.reef.runtime.common.evaluator.context.defaults | 
 Default implementations for the optional context interfaces. 
 | 
| Modifier and Type | Field and Description | 
|---|---|
static OptionalImpl<ContextMessageHandler> | 
ContextConfiguration.ON_MESSAGE
Driver has sent the context a message, and this parameter is used to register a handler
 on the context for processing that message. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
DefaultContextMessageHandler
Default handler for messages sent by the driver: Crash the context. 
 | 
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