edu.umass.cs.reconfiguration.interfaces

Interface ReconfigurableAppInfo

public interface ReconfigurableAppInfo

Author:

arun This interface defines the API available to AbstractDemandProfile implementations to get information about the application as is pertinent to the reconfiguration policy.

Method Summary

Modifier and Type	Method and Description
java.util.Map<java.lang.String,java.net.InetSocketAddress>	getAllActiveReplicas()
java.util.Set<java.lang.String>	getReplicaGroup(java.lang.String serviceName)
java.lang.String	snapshot(java.lang.String serviceName)

Method Detail

getReplicaGroup

java.util.Set<java.lang.String> getReplicaGroup(java.lang.String serviceName)

Parameters:

serviceName -

Returns:

The current replica group for serviceName if replicated locally; if serviceName is not replicated locally, this method will return null.

snapshot

java.lang.String snapshot(java.lang.String serviceName)

Parameters:

serviceName -

Returns:

The current snapshot of serviceName's state as a String. This method internally invokes Replicable.checkpoint(String) in order to obtain a snapshot of the state. This method is useful when the reconfiguration decision depends on the value of serviceName's current state.

getAllActiveReplicas

java.util.Map<java.lang.String,java.net.InetSocketAddress> getAllActiveReplicas()

Returns:

The current set of all active replica servers. This set is guaranteed only to be eventually consistent but may be intermittently stale when active replica servers are being added to or removed from the system.