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java.lang.Object org.jgroups.StreamingSetStateEvent
public class StreamingSetStateEvent
Represents an event returned by channel.receive()
, as requested by
channel.getState()
previously.
Allows applications using a channel in a pull mode to receive a state from
another channel instance providing state. Channels have to be configured with
STREAMING_STATE_TRANSFER
protocol rather than the default
STATE_TRANSFER
protocol in order to receive this event.
The following code demonstrate how to pull events from a channel, processing
StreamingSetStateEvent
and retrieving hypothetical state in the
form of LinkedList from event's InputStream
reference.
Object obj=channel.receive(0); if(obj instanceof StreamingSetStateEvent) { StreamingSetStateEvent evt=(StreamingSetStateEvent)obj; ObjectInputStream ois = null; try { ois = new ObjectInputStream(evt.getArg()); state = (LinkedList)ois.readObject(); } catch (Exception e) {} finally { try { ois.close(); } catch (IOException e) { System.err.println(e); } } }
JChannel.getState(Address, long)
,
org.jgroups.StreamingMessageListener#setState(InputStream)
Constructor Summary | |
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StreamingSetStateEvent(java.io.InputStream is,
java.lang.String state_id)
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Method Summary | |
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java.io.InputStream |
getArg()
Returns InputStream used for reading of a state. |
java.lang.String |
getStateId()
Returns id of the partial state if partial state was requested. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public StreamingSetStateEvent(java.io.InputStream is, java.lang.String state_id)
Method Detail |
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public java.io.InputStream getArg()
public java.lang.String getStateId()
JChannel.getState(Address, long)
,
JChannel.getState(Address, String, long)
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