ReconfigurationPacket.PacketType

java.lang.Object
- java.lang.Enum<ReconfigurationPacket.PacketType>
- - edu.umass.cs.reconfiguration.reconfigurationpackets.ReconfigurationPacket.PacketType

All Implemented Interfaces:

IntegerPacketType, IntegerType, java.io.Serializable, java.lang.Comparable<ReconfigurationPacket.PacketType>

Enclosing class:

ReconfigurationPacket<NodeIDType>
```
public static enum ReconfigurationPacket.PacketType
extends java.lang.Enum<ReconfigurationPacket.PacketType>
implements IntegerPacketType
```
End of ReconfigurationpacketType

Enum Constant Summary

Enum Constants
Enum Constant and Description
`ACK_DROP_EPOCH_FINAL_STATE`
`ACK_START_EPOCH`
`ACK_STOP_EPOCH`
`ACTIVE_REPLICA_ERROR`
`CREATE_SERVICE_NAME`
`DELETE_SERVICE_NAME`
`DEMAND_REPORT`
`DROP_EPOCH_FINAL_STATE`
`ECHO_REQUEST`
`EPOCH_FINAL_STATE`
`NO_TYPE`
`RC_RECORD_REQUEST`
`RECONFIGURE_ACTIVE_NODE_CONFIG`
`RECONFIGURE_RC_NODE_CONFIG`
`REPLICABLE_CLIENT_REQUEST`
`REQUEST_ACTIVE_REPLICAS`
`REQUEST_EPOCH_FINAL_STATE`
`START_EPOCH`
`STOP_EPOCH` A typical sequence of events is as follows.

Field Summary

Fields
Modifier and Type Field and Description

static IntegerPacketTypeMap<ReconfigurationPacket.PacketType> intToType

Fields
Modifier and Type	Field and Description
`static IntegerPacketTypeMap<ReconfigurationPacket.PacketType>`	`intToType`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int`	`getInt()`
`static ReconfigurationPacket.PacketType`	`valueOf(java.lang.String name)` Returns the enum constant of this type with the specified name.
`static ReconfigurationPacket.PacketType[]`	`values()` Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - STOP_EPOCH
```
public static final ReconfigurationPacket.PacketType STOP_EPOCH
```
    A typical sequence of events is as follows. Active replicas regularly send DEMAND_REPORTs to reconfigurators. Upon the receipt of some (but far from all) demand report, a reconfigurator might decide to initiate a reconfiguration that proceeds as follows: DEMAND_REPORT: coordinate "reconfiguration intent" RC_RECORD_REQUEST with other reconfigurators. RC_RECORD_REQUEST (RECONFIGURATION_INTENT) : send STOP_EPOCH to all active replicas. STOP_EPOCH: coordinate STOP_EPOCH with other active replicas. PaxosPacket.DECISION(STOP_EPOCH) : send ACK_STOP_EPOCH to reconfigurators. ACK_STOP_EPOCH : send START_EPOCH to next epoch active replicas. START_EPOCH : send REQUEST_EPOCH_FINAL_STATE to previous epoch active replicas. REQUEST_EPOCH_FINAL_STATE : send EPOCH_FINAL_STATE EPOCH_FINAL_STATE : create new epoch group locally and send ACK_START_EPOCH to initiating reconfigurator. ACK_START_EPOCH : upon receiving a majority of these from the new epoch, send DROP_EPOCH_FINAL_STATE to old epoch active replicas, and and coordinate RC_RECORD_REQUEST marking "reconfiguration complete" with other reconfigurators (although the reconfiguration is not completely complete yet). RC_RECORD_REQUEST (RECONFIGURATION_COMPLETE) : mark the reconfigured name as READY to receive client requests. DROP_EPOCH_FINAL_STATE : drop old, stopped epoch's final state and send ACK_DROP_EPOCH_FINAL_STATE to reconfigurator. ACK_DROP_EPOCH_FINAL_STATE : wait until all old epoch active replicas have dropped their state, marking the final completion of the reconfiguration.
  - START_EPOCH
```
public static final ReconfigurationPacket.PacketType START_EPOCH
```
  - DROP_EPOCH_FINAL_STATE
```
public static final ReconfigurationPacket.PacketType DROP_EPOCH_FINAL_STATE
```
  - REQUEST_EPOCH_FINAL_STATE
```
public static final ReconfigurationPacket.PacketType REQUEST_EPOCH_FINAL_STATE
```
  - EPOCH_FINAL_STATE
```
public static final ReconfigurationPacket.PacketType EPOCH_FINAL_STATE
```
  - DEMAND_REPORT
```
public static final ReconfigurationPacket.PacketType DEMAND_REPORT
```
  - ACK_STOP_EPOCH
```
public static final ReconfigurationPacket.PacketType ACK_STOP_EPOCH
```
  - ACK_START_EPOCH
```
public static final ReconfigurationPacket.PacketType ACK_START_EPOCH
```
  - ACK_DROP_EPOCH_FINAL_STATE
```
public static final ReconfigurationPacket.PacketType ACK_DROP_EPOCH_FINAL_STATE
```
  - CREATE_SERVICE_NAME
```
public static final ReconfigurationPacket.PacketType CREATE_SERVICE_NAME
```
  - DELETE_SERVICE_NAME
```
public static final ReconfigurationPacket.PacketType DELETE_SERVICE_NAME
```
  - REQUEST_ACTIVE_REPLICAS
```
public static final ReconfigurationPacket.PacketType REQUEST_ACTIVE_REPLICAS
```
  - ACTIVE_REPLICA_ERROR
```
public static final ReconfigurationPacket.PacketType ACTIVE_REPLICA_ERROR
```
  - RC_RECORD_REQUEST
```
public static final ReconfigurationPacket.PacketType RC_RECORD_REQUEST
```
  - RECONFIGURE_RC_NODE_CONFIG
```
public static final ReconfigurationPacket.PacketType RECONFIGURE_RC_NODE_CONFIG
```
  - RECONFIGURE_ACTIVE_NODE_CONFIG
```
public static final ReconfigurationPacket.PacketType RECONFIGURE_ACTIVE_NODE_CONFIG
```
  - ECHO_REQUEST
```
public static final ReconfigurationPacket.PacketType ECHO_REQUEST
```
  - REPLICABLE_CLIENT_REQUEST
```
public static final ReconfigurationPacket.PacketType REPLICABLE_CLIENT_REQUEST
```
  - NO_TYPE
```
public static final ReconfigurationPacket.PacketType NO_TYPE
```
- Field Detail
  - intToType
```
public static final IntegerPacketTypeMap<ReconfigurationPacket.PacketType> intToType
```
- Method Detail
  - values
```
public static ReconfigurationPacket.PacketType[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
```
for (ReconfigurationPacket.PacketType c : ReconfigurationPacket.PacketType.values())
    System.out.println(c);
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static ReconfigurationPacket.PacketType valueOf(java.lang.String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
    
    java.lang.NullPointerException - if the argument is null
  - getInt
```
public int getInt()
```
    Specified by:
    
    getInt in interface IntegerType
    
    Returns:
    
    The unique integer corresponding to instances of entities (objects, enums, packet types, command types, or whatever) like this.

Enum ReconfigurationPacket.PacketType

Enum Constant Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

STOP_EPOCH

START_EPOCH

DROP_EPOCH_FINAL_STATE

REQUEST_EPOCH_FINAL_STATE

EPOCH_FINAL_STATE

DEMAND_REPORT

ACK_STOP_EPOCH

ACK_START_EPOCH

ACK_DROP_EPOCH_FINAL_STATE

CREATE_SERVICE_NAME

DELETE_SERVICE_NAME

REQUEST_ACTIVE_REPLICAS

ACTIVE_REPLICA_ERROR

RC_RECORD_REQUEST

RECONFIGURE_RC_NODE_CONFIG

RECONFIGURE_ACTIVE_NODE_CONFIG

ECHO_REQUEST

REPLICABLE_CLIENT_REQUEST

NO_TYPE

Field Detail

intToType

Method Detail

values

valueOf

getInt