bftsmart.statemanagement

Interface ApplicationState

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

CounterState, CSTState, DefaultApplicationState

public interface ApplicationState
extends java.io.Serializable

This classe represents a state tranfered from a replica to another. The state associated with the last checkpoint together with all the batches of messages received do far, comprises the sender's current state IMPORTANT: The hash state MUST ALWAYS be present, regardless if the replica is supposed to send the complete state or not

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj) This method MUST be implemented.
int	getLastEid() The consensus of the last batch of commands which the application was given
byte[]	getSerializedState() Byte array that must be a representation of the application state
byte[]	getStateHash() Gets an secure hash of the application state
int	hashCode() This method MUST be implemented.
boolean	hasState() Indicates if the sender replica had the state requested by the recovering replica
void	setSerializedState(byte[] state) Sets a byte array that must be a representation of the application state

Method Detail

getLastEid

int getLastEid()

The consensus of the last batch of commands which the application was given

Returns:

consensus of the last batch of commands which the application was given

hasState

boolean hasState()

Indicates if the sender replica had the state requested by the recovering replica

Returns:

true if the sender replica had the state requested by the recovering replica, false otherwise

setSerializedState

void setSerializedState(byte[] state)

Sets a byte array that must be a representation of the application state

Parameters:

state - a byte array that must be a representation of the application state

getSerializedState

byte[] getSerializedState()

Byte array that must be a representation of the application state

getStateHash

byte[] getStateHash()

Gets an secure hash of the application state

Returns:

Secure hash of the application state

equals

boolean equals(java.lang.Object obj)

This method MUST be implemented. However, the attribute returned by getSerializedState() should be ignored, and getStateHash() should be used instead

Overrides:

equals in class java.lang.Object

hashCode

int hashCode()

This method MUST be implemented. However, the attribute returned by getSerializedState() should be ignored, and getStateHash() should be used instead

Overrides:

hashCode in class java.lang.Object