FollowerInfo (Apache Ratis Server API 3.1.3 API)

```
public interface FollowerInfo
```
Information of a follower, provided the local server is the Leader

字段概要

字段
限定符和类型字段和说明

static org.slf4j.Logger LOG

字段
限定符和类型	字段和说明
`static org.slf4j.Logger`	`LOG`

方法概要

所有方法实例方法抽象方法
限定符和类型	方法和说明
`void`	`computeNextIndex(LongUnaryOperator op)` Set the nextIndex for this follower.
`void`	`decreaseNextIndex(long newNextIndex)` Decrease the nextIndex for this follower.
`long`	`getCommitIndex()`
`RaftPeerId`	`getId()`
`Timestamp`	`getLastHeartbeatSendTime()`
`Timestamp`	`getLastRespondedAppendEntriesSendTime()`
`Timestamp`	`getLastRpcResponseTime()`
`Timestamp`	`getLastRpcSendTime()`
`Timestamp`	`getLastRpcTime()`
`long`	`getMatchIndex()`
`String`	`getName()`
`long`	`getNextIndex()`
`RaftPeer`	`getPeer()` Return this follower's `RaftPeer`.
`long`	`getSnapshotIndex()`
`boolean`	`hasAttemptedToInstallSnapshot()` Return true if install snapshot has been attempted by the Follower at least once.
`void`	`increaseNextIndex(long newNextIndex)` Increase the nextIndex for this follower.
`void`	`setAttemptedToInstallSnapshot()` Acknowledge that Follower attempted to install a snapshot.
`void`	`setNextIndex(long newNextIndex)` Set the nextIndex for this follower.
`void`	`setSnapshotIndex(long newSnapshotIndex)` Set follower's snapshotIndex.
`boolean`	`updateCommitIndex(long newCommitIndex)` Update follower's commitIndex.
`void`	`updateLastRespondedAppendEntriesSendTime(Timestamp sendTime)` Update lastRpcResponseTime and LastRespondedAppendEntriesSendTime
`void`	`updateLastRpcResponseTime()` Update lastRpcResponseTime to the current time.
`void`	`updateLastRpcSendTime(boolean isHeartbeat)` Update lastRpcSendTime to the current time.
`boolean`	`updateMatchIndex(long newMatchIndex)` Update this follower's matchIndex.
`void`	`updateNextIndex(long newNextIndex)` Update the nextIndex for this follower.

- 字段详细资料
  - LOG
```
static final org.slf4j.Logger LOG
```
- 方法详细资料
  - getName
```
String getName()
```
    返回:
    
    the name of this object.
  - getId
```
RaftPeerId getId()
```
    返回:
    
    this follower's peer id.
  - getPeer
```
RaftPeer getPeer()
```
    Return this follower's RaftPeer. To obtain the RaftPeerId, use getId() which is more efficient than this method.
    
    返回:
    
    this follower's peer info.
  - getMatchIndex
```
long getMatchIndex()
```
    返回:
    
    the matchIndex acknowledged by this follower.
  - updateMatchIndex
```
boolean updateMatchIndex(long newMatchIndex)
```
    Update this follower's matchIndex.
  - getCommitIndex
```
long getCommitIndex()
```
    返回:
    
    the commitIndex acknowledged by this follower.
  - updateCommitIndex
```
boolean updateCommitIndex(long newCommitIndex)
```
    Update follower's commitIndex.
  - getSnapshotIndex
```
long getSnapshotIndex()
```
    返回:
    
    the snapshotIndex acknowledged by this follower.
  - setSnapshotIndex
```
void setSnapshotIndex(long newSnapshotIndex)
```
    Set follower's snapshotIndex.
  - setAttemptedToInstallSnapshot
```
void setAttemptedToInstallSnapshot()
```
    Acknowledge that Follower attempted to install a snapshot. It does not guarantee that the installation was successful. This helps to determine whether Follower can come out of bootstrap process.
  - hasAttemptedToInstallSnapshot
```
boolean hasAttemptedToInstallSnapshot()
```
    Return true if install snapshot has been attempted by the Follower at least once. Used to verify if Follower tried to install snapshot during bootstrap process.
  - getNextIndex
```
long getNextIndex()
```
    返回:
    
    the nextIndex for this follower.
  - increaseNextIndex
```
void increaseNextIndex(long newNextIndex)
```
    Increase the nextIndex for this follower.
  - decreaseNextIndex
```
void decreaseNextIndex(long newNextIndex)
```
    Decrease the nextIndex for this follower.
  - setNextIndex
```
void setNextIndex(long newNextIndex)
```
    Set the nextIndex for this follower.
  - updateNextIndex
```
void updateNextIndex(long newNextIndex)
```
    Update the nextIndex for this follower.
  - computeNextIndex
```
void computeNextIndex(LongUnaryOperator op)
```
    Set the nextIndex for this follower.
  - getLastRpcResponseTime
```
Timestamp getLastRpcResponseTime()
```
    返回:
    
    the lastRpcResponseTime .
  - getLastRpcSendTime
```
Timestamp getLastRpcSendTime()
```
    返回:
    
    the lastRpcSendTime .
  - updateLastRpcResponseTime
```
void updateLastRpcResponseTime()
```
    Update lastRpcResponseTime to the current time.
  - updateLastRpcSendTime
```
void updateLastRpcSendTime(boolean isHeartbeat)
```
    Update lastRpcSendTime to the current time.
  - getLastRpcTime
```
Timestamp getLastRpcTime()
```
    返回:
    
    the latest of the lastRpcSendTime and the lastRpcResponseTime .
  - getLastHeartbeatSendTime
```
Timestamp getLastHeartbeatSendTime()
```
    返回:
    
    the latest heartbeat send time.
  - getLastRespondedAppendEntriesSendTime
```
Timestamp getLastRespondedAppendEntriesSendTime()
```
    返回:
    
    the send time of last responded rpc
  - updateLastRespondedAppendEntriesSendTime
```
void updateLastRespondedAppendEntriesSendTime(Timestamp sendTime)
```
    Update lastRpcResponseTime and LastRespondedAppendEntriesSendTime

接口 FollowerInfo

字段概要

方法概要

字段详细资料

LOG

方法详细资料

getName

getId

getPeer

getMatchIndex

updateMatchIndex

getCommitIndex

updateCommitIndex

getSnapshotIndex

setSnapshotIndex

setAttemptedToInstallSnapshot

hasAttemptedToInstallSnapshot

getNextIndex

increaseNextIndex

decreaseNextIndex

setNextIndex

updateNextIndex

computeNextIndex

getLastRpcResponseTime

getLastRpcSendTime

updateLastRpcResponseTime

updateLastRpcSendTime

getLastRpcTime

getLastHeartbeatSendTime

getLastRespondedAppendEntriesSendTime

updateLastRespondedAppendEntriesSendTime