RepGroupImpl (starrocks-bdb-je 18.3.17 API)

java.lang.Object
- com.sleepycat.je.rep.impl.RepGroupImpl

```
public class RepGroupImpl
extends Object
```
Represents a snapshot of the Replication Group as a whole. Note that membership associated with a group is dynamic and its constituents can change at any time. It's useful to keep in mind that due to the distributed nature of the Replication Group all the nodes in a replication group may not have the same consistent picture of the replication group at a single point in time, but will converge to become consistent eventually.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class RepGroupImpl.NodeConflictException

Nested Classes
Modifier and Type	Class and Description
`static class`	`RepGroupImpl.NodeConflictException`

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`FORMAT_VERSION_2` The latest format version that is compatible with JE 6.0.0 and earlier versions.
`static int`	`FORMAT_VERSION_3` Format version introduced in JE 6.0.1 that records a node's most recent JE version, and the minimum JE version required to join the group.
`static JEVersion`	`FORMAT_VERSION_3_JE_VERSION` The first JE version that supports FORMAT_VERSION_3.
`static int`	`INITIAL_FORMAT_VERSION` The initial format version for newly created RepGroupImpl instances.
`static int`	`MAX_FORMAT_VERSION` The latest supported format version.
`static int`	`MAX_NODES_WITH_TRANSIENT_ID` The maximum number of nodes with transient ID that can join the group at the same time time.
`static JEVersion`	`MIN_FORMAT_VERSION_JE_VERSION` The first JE version that supports the oldest supported format version.

Constructor Summary

Constructors
Constructor and Description
`RepGroupImpl(String groupName, boolean unknownUUID, JEVersion currentJEVersion)` Constructor to create a group and specify if the group's UUID should be unknown or generated randomly.
`RepGroupImpl(String groupName, JEVersion currentJEVersion)` Constructor to create a new empty repGroup, typically as part of environment initialization.
`RepGroupImpl(String groupName, UUID uuid, int formatVersion)` Constructor to create a group and specify the group's UUID and format version.
`RepGroupImpl(String groupName, UUID uuid, int formatVersion, int changeVersion, int nodeIdSequence, JEVersion minJEVersion)` Constructor used to recreate an existing RepGroup, typically as part of a deserialization operation.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addTransientIdNode(RepNodeImpl node)` Add a node with transient id.
`void`	`checkForConflicts(RepNodeImpl node)` Checks for whether a new or changed node definition is in conflict with other members of the group.
`int`	`countAllMembers(com.sleepycat.je.rep.impl.RepGroupImpl.Predicate p)` Counts the number of nodes that are currently members of the group.
`static RepGroupImpl`	`deserializeHex(String[] tokens, int start)` De-serializes an array of tokens into a Rep group object and its nodes.
`static RepNodeImpl`	`deserializeNode(byte[] bytes, int formatVersion)` Deserialize the mode from its byte representation.
`boolean`	`equals(Object obj)`
`int`	`getAckGroupSize()` Returns the number of all electable nodes that are currently members of the group.
`Set<InetSocketAddress>`	`getAllAcceptorSockets()` Returns the socket addresses for all nodes that are currently members of the group and act as acceptors for elections.
`Set<RepNodeImpl>`	`getAllElectableMembers()` Returns all electable nodes that are currently members of the group.
`Set<Integer>`	`getAllElectionMemberIds()` Returns the node IDs for all nodes that are currently members of the group and that act as proposers, acceptors, or distinguished learners.
`Set<InetSocketAddress>`	`getAllHelperSockets()` Return the socket addresses for all nodes that are currently members of the group and act as helpers to supply election results.
`Set<RepNodeImpl>`	`getAllLearnerMembers()` Returns all the nodes that are currently members of the group that act as distinguished learners to receive election results.
`Set<InetSocketAddress>`	`getAllLearnerSockets()` Return the socket addresses for all nodes that are currently members of the group and act as distinguished learners to receive election results.
`Set<RepNodeImpl>`	`getAllMembers(com.sleepycat.je.rep.impl.RepGroupImpl.Predicate p)` Returns all nodes that are currently members of the group.
`Set<InetSocketAddress>`	`getAllMonitorSockets()` Returns the socket addresses for all monitor nodes that are currently members of the group.
`Set<RepNodeImpl>`	`getArbiterMembers()` Returns the arbiter nodes that are currently members of the group.
`int`	`getChangeVersion()` Returns the version of the instance as represented by changes to the members constituting the group.
`Set<RepNodeImpl>`	`getDataMembers()` Returns the nodes that are currently members of the group that store replication data.
`int`	`getElectableGroupSize()` Returns the number of all electable nodes that are currently members of the group.
`Set<RepNodeImpl>`	`getElectableMembers()` Returns electable nodes that are currently members of the group.
`Set<RepNodeImpl>`	`getExternalMembers()` Returns the external nodes that are currently members of the group.
`static int`	`getFirstNodeId()` Returns the node ID that is associated with the very first node in the replication group.
`int`	`getFormatVersion()` Returns the version of the format (the schema) in use by this group instance in the database.
`static int`	`getMaxFormatVersion(JEVersion jeVersion)` Returns the highest format version supported by the specified JE version.
`RepNodeImpl`	`getMember(InetSocketAddress socket)` Gets the node that is currently a member of the group that has the given socket address.
`RepNodeImpl`	`getMember(int nodeId)` Returns the node with the specified ID that is currently a member of the group, throwing an exception if the node is found but is no longer a member.
`RepNodeImpl`	`getMember(String name)` Returns the node with the specified name that is currently a member of the group, throwing an exception if the node is found but is no longer a member.
`JEVersion`	`getMinJEVersion()` Returns the minimum JE version that a node must be running in order to join the group.
`Set<RepNodeImpl>`	`getMonitorMembers()` Returns the monitor nodes that are currently members of the group.
`String`	`getName()` Returns the name of the group.
`int`	`getNextNodeId()` Increments the node ID sequence and returns it.
`RepNodeImpl`	`getNode(int nodeId)` Returns the node with the specified ID, regardless of its membership state.
`RepNodeImpl`	`getNode(String name)` Returns the node with the specified name, regardless of its membership state.
`int`	`getNodeIdSequence()` Returns the current highest node ID currently in use by the group.
`Set<RepNodeImpl>`	`getRemovedNodes()` Returns nodes that are removed from the group.
`Set<RepNodeImpl>`	`getSecondaryMembers()` Returns the secondary nodes that are currently members of the group.
`UUID`	`getUUID()` returns the unique UUID associated with the replicated environment.
`int`	`hashCode()`
`boolean`	`hasUnknownUUID()`
`static RepNodeImpl`	`hexDeserializeNode(String hex, int formatVersion)` Deserializes the object serialized by `serializeHex(int)`
`void`	`includeAllMembers(com.sleepycat.je.rep.impl.RepGroupImpl.Predicate p, Set<? super RepNodeImpl> set)` Adds all nodes that are currently members of the group to the specified set.
`void`	`includeArbiterMembers(Set<? super RepNodeImpl> set)` Adds the arbiter nodes that are currently members of the group to the specified set.
`void`	`includeDataMembers(Set<? super RepNodeImpl> set)` Adds the nodes that are currently members of the group that store replication data to the specified set.
`void`	`includeElectableMembers(Set<? super RepNodeImpl> set)` Adds the electable nodes that are currently members of the group to the specified set.
`void`	`includeExternalMembers(Set<? super RepNodeImpl> set)` Adds the external nodes.
`void`	`includeMembers(com.sleepycat.je.rep.impl.RepGroupImpl.Predicate p, Set<? super RepNodeImpl> set)` Adds nodes that are currently members of the group to the specified set.
`void`	`includeMonitorMembers(Set<? super RepNodeImpl> set)` Adds the monitor nodes that are currently members of the group to the specified set.
`void`	`includeSecondaryMembers(Set<? super RepNodeImpl> set)` Adds the secondary nodes that are currently members of the group to the specified set.
`int`	`incrementChangeVersion()` Increments the object change version.
`static boolean`	`isUnknownUUID(UUID uuid)` Predicate to help determine whether the UUID is the canonical unknown UUID.
`void`	`makeConsistent()` Used to ensure that the ReplicationGroup value is consistent after it has been fetched via a readUncommitted access to the rep group database.
`RepNodeImpl`	`removeMember(String nodeName, boolean delete)` Removes a member transiently from the rep group by marking it as removed and optionally deleting it from the by-name and by-ID maps.
`void`	`removeTransientNode(RepNodeImpl node)` Remove a node with transient id, which should have an assigned ID
`static byte[]`	`serializeBytes(RepNodeImpl node, int formatVersion)` Serialize the node into its byte representation.
`String`	`serializeHex(int groupFormatVersion)` Returns a serialized character based form of the group suitable for use in subclasses of SimpleProtocol.
`static String`	`serializeHex(RepNodeImpl node, int formatVersion)` Returns the serialized form of the node as a sequence of hex characters suitable for use by the text based protocols.
`void`	`setMinJEVersion(JEVersion newMinJEVersion)` Sets the minimum JE version that a node must be running in order to join the replication group.
`void`	`setNodeIdSequence(int nodeIdSequence)` Set the node id sequence.
`void`	`setNodes(Map<Integer,RepNodeImpl> nodes)` Sets the nodes associated with the Rep group.
`void`	`setUUID(UUID uuid)` Sets the UUID.
`String`	`toString()` Return information to the user, format nicely for ease of reading.

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

- Field Detail
  - MAX_FORMAT_VERSION
```
public static final int MAX_FORMAT_VERSION
```
    The latest supported format version.
    
    See Also:
    
    Constant Field Values
  - FORMAT_VERSION_3
```
public static final int FORMAT_VERSION_3
```
    Format version introduced in JE 6.0.1 that records a node's most recent JE version, and the minimum JE version required to join the group.
    
    See Also:
    
    Constant Field Values
  - FORMAT_VERSION_2
```
public static final int FORMAT_VERSION_2
```
    The latest format version that is compatible with JE 6.0.0 and earlier versions.
    
    See Also:
    
    Constant Field Values
  - INITIAL_FORMAT_VERSION
```
public static final int INITIAL_FORMAT_VERSION
```
    The initial format version for newly created RepGroupImpl instances.
    
    See Also:
    
    Constant Field Values
  - FORMAT_VERSION_3_JE_VERSION
```
public static final JEVersion FORMAT_VERSION_3_JE_VERSION
```
    The first JE version that supports FORMAT_VERSION_3.
  - MIN_FORMAT_VERSION_JE_VERSION
```
public static final JEVersion MIN_FORMAT_VERSION_JE_VERSION
```
    The first JE version that supports the oldest supported format version.
  - MAX_NODES_WITH_TRANSIENT_ID
```
public static final int MAX_NODES_WITH_TRANSIENT_ID
```
    The maximum number of nodes with transient ID that can join the group at the same time time. This number of transient id node IDs will be reserved at the top of the node ID range.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - RepGroupImpl
```
public RepGroupImpl(String groupName,
                    JEVersion currentJEVersion)
```
    Constructor to create a new empty repGroup, typically as part of environment initialization.
    
    Parameters:
    
    groupName - the group name
    
    currentJEVersion - if non-null, override the current JE version, for testing
  - RepGroupImpl
```
public RepGroupImpl(String groupName,
                    boolean unknownUUID,
                    JEVersion currentJEVersion)
```
    Constructor to create a group and specify if the group's UUID should be unknown or generated randomly.
  - RepGroupImpl
```
public RepGroupImpl(String groupName,
                    UUID uuid,
                    int formatVersion)
```
    Constructor to create a group and specify the group's UUID and format version.
  - RepGroupImpl
```
public RepGroupImpl(String groupName,
                    UUID uuid,
                    int formatVersion,
                    int changeVersion,
                    int nodeIdSequence,
                    JEVersion minJEVersion)
```
    Constructor used to recreate an existing RepGroup, typically as part of a deserialization operation.
    
    Parameters:
    
    groupName -
    
    uuid -
    
    formatVersion -
    
    changeVersion -
    
    minJEVersion -
- Method Detail
  - hasUnknownUUID
```
public boolean hasUnknownUUID()
```
  - isUnknownUUID
```
public static boolean isUnknownUUID(UUID uuid)
```
    Predicate to help determine whether the UUID is the canonical unknown UUID.
  - setUUID
```
public void setUUID(UUID uuid)
```
    Sets the UUID. The UUID can only be set if it's currently unknown.
  - removeMember
```
public RepNodeImpl removeMember(String nodeName,
                                boolean delete)
```
    Removes a member transiently from the rep group by marking it as removed and optionally deleting it from the by-name and by-ID maps. This action is usually a precursor to making the change persistent on disk.
    
    Parameters:
    
    nodeName - identifies the node being removed
    
    delete - whether to delete the node from the maps
    
    Returns:
    
    the node that was removed
    
    Throws:
    
    EnvironmentFailureException - if the node is not part of the group or is a node with a transient ID
  - checkForConflicts
```
public void checkForConflicts(RepNodeImpl node)
                       throws DatabaseException,
                              RepGroupImpl.NodeConflictException
```
    Checks for whether a new or changed node definition is in conflict with other members of the group. In particular, checks that the specified node does not use the same socket address as another member.
    This check must be done when adding a new member to the group, or changing the network address of an existing member, and must be done with the rep group entry in the database locked for write to prevent race conditions.
    
    Parameters:
    
    node - the new node that is being checked for conflicts
    
    Throws:
    
    RepGroupImpl.NodeConflictException - if there is a conflict
    
    DatabaseException
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object
  - setNodes
```
public void setNodes(Map<Integer,RepNodeImpl> nodes)
```
    Sets the nodes associated with the Rep group. Note that both nodesById and nodesByIndex are initialized.
  - addTransientIdNode
```
public void addTransientIdNode(RepNodeImpl node)
```
    Add a node with transient id. The caller should already have assigned the node an ID and checked that the replication group supports secondary nodes.
    
    Parameters:
    
    node - the node with transient id
    
    Throws:
    
    IllegalStateException - if the store does not currently support secondary nodes
    
    RepGroupImpl.NodeConflictException - if the node conflicts with an existing persistent node
  - removeTransientNode
```
public void removeTransientNode(RepNodeImpl node)
```
    Remove a node with transient id, which should have an assigned ID
    
    Parameters:
    
    node - the node with a transient ID
  - getUUID
```
public UUID getUUID()
```
    returns the unique UUID associated with the replicated environment.
    
    Returns:
    
    the UUID
  - getFormatVersion
```
public int getFormatVersion()
```
    Returns the version of the format (the schema) in use by this group instance in the database.
    
    Returns:
    
    the format version
  - getMaxFormatVersion
```
public static int getMaxFormatVersion(JEVersion jeVersion)
```
    Returns the highest format version supported by the specified JE version.
    
    Parameters:
    
    jeVersion - the JE version
    
    Returns:
    
    the highest format version supported by that JE version
  - getChangeVersion
```
public int getChangeVersion()
```
    Returns the version of the instance as represented by changes to the members constituting the group.
    
    Returns:
    
    the object change version
  - incrementChangeVersion
```
public int incrementChangeVersion()
```
    Increments the object change version. It must be called with the group entry locked in the group database.
    
    Returns:
    
    the incremented change version
  - getNodeIdSequence
```
public int getNodeIdSequence()
```
    Returns the current highest node ID currently in use by the group.
    
    Returns:
    
    the highest node ID in use
  - setNodeIdSequence
```
public void setNodeIdSequence(int nodeIdSequence)
```
    Set the node id sequence. This is only done in unusual circumstances, e.g. when a replication group is being reset in an existing replicated environment and we want to ensure that the internal node ids are not reused in the logs.
  - getNextNodeId
```
public int getNextNodeId()
```
    Increments the node ID sequence and returns it.
    
    Returns:
    
    the next node ID for use in a new node
  - getFirstNodeId
```
public static int getFirstNodeId()
```
    Returns the node ID that is associated with the very first node in the replication group.
  - getMinJEVersion
```
public JEVersion getMinJEVersion()
```
    Returns the minimum JE version that a node must be running in order to join the group.
  - setMinJEVersion
```
public void setMinJEVersion(JEVersion newMinJEVersion)
                     throws MinJEVersionUnsupportedException
```
    Sets the minimum JE version that a node must be running in order to join the replication group. The group object should have had its nodes fetched using the RepGroupDB.fetchGroup(java.lang.String, com.sleepycat.je.dbi.DatabaseImpl, com.sleepycat.je.txn.Txn) method and should be stored to the group database after making this change. Throws a MinJEVersionUnsupportedException if the requested version is not supported. Updates the group format version as needed to match the JE version. Has no effect if the current minimum value is already as high or higher than the requested one.
    
    Parameters:
    
    newMinJEVersion - the new minimum JE version
    
    Throws:
    
    MinJEVersionUnsupportedException - if the requested version is not supported by the group's electable nodes
  - makeConsistent
```
public void makeConsistent()
```
    Used to ensure that the ReplicationGroup value is consistent after it has been fetched via a readUncommitted access to the rep group database. It does so by ensuring that the summarized values match the nodes that were actually read.
  - serializeHex
```
public String serializeHex(int groupFormatVersion)
```
    Returns a serialized character based form of the group suitable for use in subclasses of SimpleProtocol. The serialized form is a multi-token string. The first token represents the RepGroup object itself with each subsequent node representing a node in the group. Tokens are separated by '|', the protocol separator character. The number of tokens is thus equal to the number of nodes in the group + 1. Each token is itself a hex character based representation of the binding used to serialize a RepGroup and store it into the database.
    
    Parameters:
    
    groupFormatVersion - the group format version
    
    Returns:
    
    the string encoded as above
  - serializeHex
```
public static String serializeHex(RepNodeImpl node,
                                  int formatVersion)
```
    Returns the serialized form of the node as a sequence of hex characters suitable for use by the text based protocols.
    
    Parameters:
    
    node - the node to be serialized.
    
    formatVersion - the group format version
    
    Returns:
    
    the string containing the serialized form of the node
  - serializeBytes
```
public static byte[] serializeBytes(RepNodeImpl node,
                                    int formatVersion)
```
    Serialize the node into its byte representation.
    
    Parameters:
    
    node - the node to be serialized
    
    formatVersion - the group format version
    
    Returns:
    
    the serialized byte array
  - hexDeserializeNode
```
public static RepNodeImpl hexDeserializeNode(String hex,
                                             int formatVersion)
```
    Deserializes the object serialized by serializeHex(int)
    
    Parameters:
    
    hex - the string containing the serialized form of the node
    
    formatVersion - the group format version
    
    Returns:
    
    the de-serialized object
  - deserializeNode
```
public static RepNodeImpl deserializeNode(byte[] bytes,
                                          int formatVersion)
```
    Deserialize the mode from its byte representation.
    
    Parameters:
    
    bytes - the byte representation of the node.
    
    formatVersion - the group format version
    
    Returns:
    
    the deserialized object
  - deserializeHex
```
public static RepGroupImpl deserializeHex(String[] tokens,
                                          int start)
```
    De-serializes an array of tokens into a Rep group object and its nodes. the token at startrepresents the group object and each subsequent token represents a node in the group.
    
    Parameters:
    
    tokens - the array representing the group and its nodes
    
    start - the position in the array at which to start the de-serialization.
    
    Returns:
    
    the de-serialized RepGroup
  - getAllElectionMemberIds
```
public Set<Integer> getAllElectionMemberIds()
```
    Returns the node IDs for all nodes that are currently members of the group and that act as proposers, acceptors, or distinguished learners. Returns IDs for all ELECTABLE and MONITOR nodes that are not removed, even if they are not acknowledged, but not for SECONDARY or EXTERNAL nodes.
  - getAllMembers
```
public Set<RepNodeImpl> getAllMembers(com.sleepycat.je.rep.impl.RepGroupImpl.Predicate p)
```
    Returns all nodes that are currently members of the group. Returns all ELECTABLE and MONITOR nodes that are acknowledged and not removed, and SECONDARY and EXTERNAL nodes. If the predicate is not null, only includes members that satisfy the predicate.
  - includeAllMembers
```
public void includeAllMembers(com.sleepycat.je.rep.impl.RepGroupImpl.Predicate p,
                              Set<? super RepNodeImpl> set)
```
    Adds all nodes that are currently members of the group to the specified set. Adds all ELECTABLE and MONITOR nodes that are not removed, even if they are not acknowledged, and SECONDARY and EXTERNAL nodes. If the predicate is not null, only adds members that satisfy the predicate.
  - countAllMembers
```
public int countAllMembers(com.sleepycat.je.rep.impl.RepGroupImpl.Predicate p)
```
    Counts the number of nodes that are currently members of the group. Counts all ELECTABLE and MONITOR nodes that are not removed, even if they are not acknowledged, and SECONDARY and EXTERNAL nodes. If the predicate is not null, only counts members that satisfy the predicate.
  - includeMembers
```
public void includeMembers(com.sleepycat.je.rep.impl.RepGroupImpl.Predicate p,
                           Set<? super RepNodeImpl> set)
```
    Adds nodes that are currently members of the group to the specified set. Adds ELECTABLE and MONITOR node that are not removed and are acknowledged, and SECONDARY and EXTERNAL nodes. If the predicate is not null, only adds members that satisfy the predicate.
  - getMember
```
public RepNodeImpl getMember(InetSocketAddress socket)
```
    Gets the node that is currently a member of the group that has the given socket address. Returns ELECTABLE and MONITOR nodes that are not removed, even if it is not acknowledged, and SECONDARY and EXTERNAL nodes.
    
    Returns:
    
    the desired node, or null if there is no such node, including if it was removed
  - getRemovedNodes
```
public Set<RepNodeImpl> getRemovedNodes()
```
    Returns nodes that are removed from the group. Returns ELECTABLE and MONITOR nodes that are removed and are acknowledged, but not SECONDARY or EXTERNAL nodes, which are not remembered when they are removed.
  - getAllElectableMembers
```
public Set<RepNodeImpl> getAllElectableMembers()
```
    Returns all electable nodes that are currently members of the group. Returns all ELECTABLE nodes that are not removed, even if they are not acknowledged, but not MONITOR, SECONDARY, or EXTERNAL nodes.
  - getElectableMembers
```
public Set<RepNodeImpl> getElectableMembers()
```
    Returns electable nodes that are currently members of the group. Returns ELECTABLE nodes that are not removed and are acknowledged, but not MONITOR, SECONDARY, or EXTERNAL nodes.
  - includeElectableMembers
```
public void includeElectableMembers(Set<? super RepNodeImpl> set)
```
    Adds the electable nodes that are currently members of the group to the specified set. Adds ELECTABLE nodes that are not removed and are acknowledged, but not MONITOR, SECONDARY, or EXTERNAL nodes.
  - getDataMembers
```
public Set<RepNodeImpl> getDataMembers()
```
    Returns the nodes that are currently members of the group that store replication data. Returns ELECTABLE nodes that are not removed and are acknowledged, and SECONDARY nodes, but not MONITOR or EXTERNAL nodes.
  - includeDataMembers
```
public void includeDataMembers(Set<? super RepNodeImpl> set)
```
    Adds the nodes that are currently members of the group that store replication data to the specified set. Adds ELECTABLE nodes that are not removed and are acknowledged, and SECONDARY nodes, but not MONITOR or EXTERNAL nodes.
  - getMonitorMembers
```
public Set<RepNodeImpl> getMonitorMembers()
```
    Returns the monitor nodes that are currently members of the group. Returns MONITOR nodes that are not removed and are acknowledged, but not ELECTABLE, SECONDARY, or EXTERNAL nodes.
    
    Returns:
    
    the set of monitor nodes
  - includeMonitorMembers
```
public void includeMonitorMembers(Set<? super RepNodeImpl> set)
```
    Adds the monitor nodes that are currently members of the group to the specified set. Adds MONITOR nodes that are not removed and are acknowledged, but not ELECTABLE, SECONDARY, or EXTERNAL nodes.
  - getAllLearnerMembers
```
public Set<RepNodeImpl> getAllLearnerMembers()
```
    Returns all the nodes that are currently members of the group that act as distinguished learners to receive election results. Returns all ELECTABLE and MONITOR that are not removed, even if they are not acknowledged, but not SECONDARY or EXTERNAL nodes.
  - getSecondaryMembers
```
public Set<RepNodeImpl> getSecondaryMembers()
```
    Returns the secondary nodes that are currently members of the group. Returns SECONDARY nodes, but not ELECTABLE, MONITOR, or EXTERNAL nodes.
  - getExternalMembers
```
public Set<RepNodeImpl> getExternalMembers()
```
    Returns the external nodes that are currently members of the group. Returns EXTERNAL nodes, but not ELECTABLE, MONITOR, or SECONDARY nodes.
  - includeSecondaryMembers
```
public void includeSecondaryMembers(Set<? super RepNodeImpl> set)
```
    Adds the secondary nodes that are currently members of the group to the specified set. Adds SECONDARY nodes, but not ELECTABLE, MONITOR, or EXTERNAL nodes.
  - includeExternalMembers
```
public void includeExternalMembers(Set<? super RepNodeImpl> set)
```
    Adds the external nodes. Adds EXTERNAL nodes, but not ELECTABLE, MONITOR, or SECONDARY nodes.
  - getArbiterMembers
```
public Set<RepNodeImpl> getArbiterMembers()
```
    Returns the arbiter nodes that are currently members of the group. Returns ARBITER nodes.
  - includeArbiterMembers
```
public void includeArbiterMembers(Set<? super RepNodeImpl> set)
```
    Adds the arbiter nodes that are currently members of the group to the specified set. Adds ARBITER nodes.
  - getAllLearnerSockets
```
public Set<InetSocketAddress> getAllLearnerSockets()
```
    Return the socket addresses for all nodes that are currently members of the group and act as distinguished learners to receive election results. Returns addresses for all ELECTABLE and MONITOR nodes that are not removed, even if they are not acknowledged, but not for SECONDARY or EXTERNAL nodes.
    
    Returns:
    
    set of learner socket addresses
  - getAllHelperSockets
```
public Set<InetSocketAddress> getAllHelperSockets()
```
    Return the socket addresses for all nodes that are currently members of the group and act as helpers to supply election results. Returns addresses for all ELECTABLE and MONITOR nodes that are not removed, even if they are not acknowledged, and SECONDARY nodes.
    
    Returns:
    
    set of helper socket addresses
  - getAllMonitorSockets
```
public Set<InetSocketAddress> getAllMonitorSockets()
```
    Returns the socket addresses for all monitor nodes that are currently members of the group. Returns addresses for all MONITOR nodes that are not removed, even if they are not acknowledged, but not for ELECTABLE, SECONDARY, or EXTERNAL nodes.
    
    Returns:
    
    the set of Monitor socket addresses
  - getAllAcceptorSockets
```
public Set<InetSocketAddress> getAllAcceptorSockets()
```
    Returns the socket addresses for all nodes that are currently members of the group and act as acceptors for elections. Returns addresses for all ELECTABLE nodes that are not removed, even if they are not acknowledged, but not for MONITOR, SECONDARY, or EXTERNAL nodes, which do not act as acceptors.
    
    Returns:
    
    the set of acceptor socket addresses
  - getMember
```
public RepNodeImpl getMember(int nodeId)
```
    Returns the node with the specified ID that is currently a member of the group, throwing an exception if the node is found but is no longer a member. Returns ELECTABLE and MONITOR nodes that are not removed, even if they are not acknowledged, and SECONDARY and EXTERNAL nodes.
    
    Parameters:
    
    nodeId - the node ID
    
    Returns:
    
    the member or null
    
    Throws:
    
    EnvironmentFailureException - if the node is no longer a member
  - getMember
```
public RepNodeImpl getMember(String name)
                      throws MemberNotFoundException
```
    Returns the node with the specified name that is currently a member of the group, throwing an exception if the node is found but is no longer a member. Returns ELECTABLE and MONITOR nodes that are not removed, even if they are not acknowledged, and SECONDARY and EXTERNAL nodes.
    
    Parameters:
    
    name - the node name
    
    Returns:
    
    the member or null
    
    Throws:
    
    MemberNotFoundException - if the node is no longer a member
  - getNode
```
public RepNodeImpl getNode(int nodeId)
```
    Returns the node with the specified ID, regardless of its membership state. Returns all ELECTABLE and MONITOR nodes, even if they are removed or are not acknowledged, and SECONDARY and EXTERNAL nodes.
    
    Returns:
    
    the node or null
  - getNode
```
public RepNodeImpl getNode(String name)
```
    Returns the node with the specified name, regardless of its membership state. Returns all ELECTABLE and MONITOR nodes, even if they are removed or are not acknowledged, and SECONDARY and EXTERNAL nodes.
    
    Returns:
    
    the node or null
  - getElectableGroupSize
```
public int getElectableGroupSize()
```
    Returns the number of all electable nodes that are currently members of the group. Includes all ELECTABLE nodes that are not removed, even if they are not acknowledged, but not MONITOR, SECONDARY, or EXTERNAL nodes. Note that even unACKed nodes are considered part of the group for group size/durability considerations.
    
    Returns:
    
    the size of the group for durability considerations
  - getAckGroupSize
```
public int getAckGroupSize()
```
    Returns the number of all electable nodes that are currently members of the group. Includes all ELECTABLE nodes that are not removed, even if they are not acknowledged, but not MONITOR, ARBITER, SECONDARY, or EXTERNAL nodes. Note that even unACKed nodes are considered part of the group for group size/durability considerations.
    
    Returns:
    
    the size of the group for durability considerations
  - getName
```
public String getName()
```
    Returns the name of the group.
    
    Returns:
    
    the name of the group.
  - toString
```
public String toString()
```
    Return information to the user, format nicely for ease of reading.
    
    Overrides:
    
    toString in class Object

Class RepGroupImpl

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

MAX_FORMAT_VERSION

FORMAT_VERSION_3

FORMAT_VERSION_2

INITIAL_FORMAT_VERSION

FORMAT_VERSION_3_JE_VERSION

MIN_FORMAT_VERSION_JE_VERSION

MAX_NODES_WITH_TRANSIENT_ID

Constructor Detail

RepGroupImpl

RepGroupImpl

RepGroupImpl

RepGroupImpl

Method Detail

hasUnknownUUID

isUnknownUUID

setUUID

removeMember

checkForConflicts

hashCode

equals

setNodes

addTransientIdNode

removeTransientNode

getUUID

getFormatVersion

getMaxFormatVersion

getChangeVersion

incrementChangeVersion

getNodeIdSequence

setNodeIdSequence

getNextNodeId

getFirstNodeId

getMinJEVersion

setMinJEVersion

makeConsistent

serializeHex

serializeHex

serializeBytes

hexDeserializeNode

deserializeNode

deserializeHex

getAllElectionMemberIds

getAllMembers

includeAllMembers

countAllMembers

includeMembers

getMember

getRemovedNodes

getAllElectableMembers

getElectableMembers

includeElectableMembers

getDataMembers

includeDataMembers

getMonitorMembers

includeMonitorMembers

getAllLearnerMembers

getSecondaryMembers

getExternalMembers

includeSecondaryMembers

includeExternalMembers

getArbiterMembers

includeArbiterMembers

getAllLearnerSockets

getAllHelperSockets

getAllMonitorSockets

getAllAcceptorSockets

getMember

getMember

getNode

getNode

getElectableGroupSize

getAckGroupSize

getName