voldemort.store.routed
Class Response<K,V>
java.lang.Object
voldemort.store.routed.Response<K,V>
- Type Parameters:
K
- Type for the key used in the requestV
- Type for the value returned by the call
public class Response<K,V>
- extends java.lang.Object
Response represents a response from a call to a remote Voldemort node to
perform some operation (get, put, etc.). It includes the Node
and
request time as these are needed by the FailureDetector
that will be
used by the user of the Response.
A Response is usually used in conjunction with asynchronous requests as a
sort of callback mechanism, though this isn't always the case. In the
case where they are the result of asynchronous requests, the
NonblockingStore
will invoke the NonblockingStoreCallback
instances's requestComplete
method which will in turn package up
the data in a Response object that is sent to the Pipeline
via an
Pipeline.Event.RESPONSES_RECEIVED
event.
Response instances are stored in the PipelineData
to represent the
responses to requests made during execution of the Pipeline
.
This class uses generics for the value to support the return types used by
the different operations. Oftentimes the key type is simply a
ByteArray
instance, but in the case of the "get all" operation, the
key is actually an Iterable
.
- See Also:
NonblockingStore
,
NonblockingStoreCallback
,
Pipeline
,
PipelineData
Constructor Summary |
Response(Node node,
K key,
V value,
long requestTime)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Response
public Response(Node node,
K key,
V value,
long requestTime)
getNode
public Node getNode()
getKey
public K getKey()
getValue
public V getValue()
getRequestTime
public long getRequestTime()
Jay Kreps, Roshan Sumbaly, Alex Feinberg, Bhupesh Bansal, Lei Gao, Chinmay Soman, Vinoth Chandar, Zhongjie Wu