Member (Apache Tomcat 8.0.15 API Documentation)

All Known Implementing Classes:

MemberImpl, StaticMember
```
public interface Member
```
The Member interface, defines a member in the group. Each member can carry a set of properties, defined by the actual implementation.
A member is identified by the host/ip/uniqueId
The host is what interface the member is listening to, to receive data
The port is what port the member is listening to, to receive data
The uniqueId defines the session id for the member. This is an important feature since a member that has crashed and the starts up again on the same port/host is not guaranteed to be the same member, so no state transfers will ever be confused

Field Summary

Fields
Modifier and Type Field and Description

static byte[] SHUTDOWN_PAYLOAD
When a member leaves the cluster, the payload of the memberDisappeared member will be the following bytes.

Fields
Modifier and Type	Field and Description
`static byte[]`	`SHUTDOWN_PAYLOAD` When a member leaves the cluster, the payload of the memberDisappeared member will be the following bytes.

Method Summary

Methods
Modifier and Type	Method and Description
`byte[]`	`getCommand()` returns the command associated with this member
`byte[]`	`getData(boolean getalive)` Highly optimized version of serializing a member into a byte array Returns a cached byte[] reference, do not modify this data
`byte[]`	`getData(boolean getalive, boolean reset)` Highly optimized version of serializing a member into a byte array Returns a cached byte[] reference, do not modify this data
`int`	`getDataLength()` Length of a message obtained by `getData(boolean)` or `getData(boolean, boolean)`.
`byte[]`	`getDomain()` Domain for this cluster
`byte[]`	`getHost()` Returns the listen host for the ChannelReceiver implementation
`long`	`getMemberAliveTime()` Contains information on how long this member has been online.
`String`	`getName()` Returns the name of this node, should be unique within the group.
`byte[]`	`getPayload()` returns the payload associated with this member
`int`	`getPort()` Returns the listen port for the ChannelReceiver implementation
`int`	`getSecurePort()` Returns the secure listen port for the ChannelReceiver implementation.
`int`	`getUdpPort()` Returns the UDP port that this member is listening to for UDP messages.
`byte[]`	`getUniqueId()` returns a UUID unique for this member over all sessions.
`boolean`	`isFailing()`
`boolean`	`isReady()` The current state of the member
`boolean`	`isSuspect()` The current state of the member
`void`	`setCommand(byte[] command)`
`void`	`setMemberAliveTime(long memberAliveTime)`
`void`	`setPayload(byte[] payload)`

- Field Detail
  - SHUTDOWN_PAYLOAD
```
static final byte[] SHUTDOWN_PAYLOAD
```
    When a member leaves the cluster, the payload of the memberDisappeared member will be the following bytes. This indicates a soft shutdown, and not a crash
- Method Detail
  - getName
```
String getName()
```
    Returns the name of this node, should be unique within the group.
  - getHost
```
byte[] getHost()
```
    Returns the listen host for the ChannelReceiver implementation
    
    Returns:
    IPv4 or IPv6 representation of the host address this member listens to incoming data
    See Also:
    ChannelReceiver
  - getPort
```
int getPort()
```
    Returns the listen port for the ChannelReceiver implementation
    
    Returns:
    the listen port for this member, -1 if its not listening on an insecure port
    See Also:
    ChannelReceiver
  - getSecurePort
```
int getSecurePort()
```
    Returns the secure listen port for the ChannelReceiver implementation. Returns -1 if its not listening to a secure port.
    
    Returns:
    the listen port for this member, -1 if its not listening on a secure port
    See Also:
    ChannelReceiver
  - getUdpPort
```
int getUdpPort()
```
    Returns the UDP port that this member is listening to for UDP messages.
    
    Returns:
    the listen UDP port for this member, -1 if its not listening on a UDP port
  - getMemberAliveTime
```
long getMemberAliveTime()
```
    Contains information on how long this member has been online. The result is the number of milli seconds this member has been broadcasting its membership to the group.
    
    Returns:
    nr of milliseconds since this member started.
  - setMemberAliveTime
```
void setMemberAliveTime(long memberAliveTime)
```
  - isReady
```
boolean isReady()
```
    The current state of the member
    
    Returns:
    boolean - true if the member is functioning correctly
  - isSuspect
```
boolean isSuspect()
```
    The current state of the member
    
    Returns:
    boolean - true if the member is suspect, but the crash has not been confirmed
  - isFailing
```
boolean isFailing()
```
    Returns:
    boolean - true if the member has been confirmed to malfunction
  - getUniqueId
```
byte[] getUniqueId()
```
    returns a UUID unique for this member over all sessions. If the member crashes and restarts, the uniqueId will be different.
    
    Returns:
    byte[]
  - getPayload
```
byte[] getPayload()
```
    returns the payload associated with this member
    
    Returns:
    byte[]
  - setPayload
```
void setPayload(byte[] payload)
```
  - getCommand
```
byte[] getCommand()
```
    returns the command associated with this member
    
    Returns:
    byte[]
  - setCommand
```
void setCommand(byte[] command)
```
  - getDomain
```
byte[] getDomain()
```
    Domain for this cluster
    
    Returns:
    byte[]
  - getData
```
byte[] getData(boolean getalive)
```
    Highly optimized version of serializing a member into a byte array Returns a cached byte[] reference, do not modify this data
    
    Parameters:
    getalive - calculate memberAlive time
  - getData
```
byte[] getData(boolean getalive,
             boolean reset)
```
    Highly optimized version of serializing a member into a byte array Returns a cached byte[] reference, do not modify this data
    
    Parameters:
    getalive - calculate memberAlive time
    reset - reset the cached data package, and create a new one
  - getDataLength
```
int getDataLength()
```
    Length of a message obtained by getData(boolean) or getData(boolean, boolean).

Interface Member

Field Summary

Method Summary

Field Detail

SHUTDOWN_PAYLOAD

Method Detail

getName

getHost

getPort

getSecurePort

getUdpPort

getMemberAliveTime

setMemberAliveTime

isReady

isSuspect

isFailing

getUniqueId

getPayload

setPayload

getCommand

setCommand

getDomain

getData

getData

getDataLength