com.sleepycat.je.dbi
Class NodeSequence

java.lang.Object
  com.sleepycat.je.dbi.NodeSequence

public class NodeSequence
extends Object

NodeSequence encapsulates the generation and maintenance of a sequence for generating node ids.

Field Summary

EnvironmentImpl	envImpl
static int	FIRST_LOCAL_NODE_ID
static int	FIRST_REPLICATED_NODE_ID

Constructor Summary

NodeSequence(EnvironmentImpl envImpl)

Method Summary

long	getLastLocalNodeId() The last allocated local and replicated node ids are used for ckpts.
long	getLastReplicatedNodeId()
long	getNextLocalNodeId() We get a new node id of the appropriate kind when creating a new node.
long	getNextReplicatedNodeId()
long	getNextTransientNodeId()
(package private) void	initRealNodeId() Initialize the counters in these methods rather than a constructor so we can control the initialization more precisely.
(package private) void	initTransientNodeId() Initialize the counters in these methods rather than a constructor so we can control the initialization more precisely.
void	setLastNodeId(long lastReplicatedNodeId, long lastLocalNodeId) Initialize the node ids, from recovery.
void	updateFromReplay(long replayNodeId)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FIRST_LOCAL_NODE_ID

public static final int FIRST_LOCAL_NODE_ID

See Also:

Constant Field Values

FIRST_REPLICATED_NODE_ID

public static final int FIRST_REPLICATED_NODE_ID

See Also:

Constant Field Values

envImpl

public final EnvironmentImpl envImpl

Constructor Detail

NodeSequence

public NodeSequence(EnvironmentImpl envImpl)

Method Detail

initTransientNodeId

void initTransientNodeId()

Initialize the counters in these methods rather than a constructor so we can control the initialization more precisely.

initRealNodeId

void initRealNodeId()

Initialize the counters in these methods rather than a constructor so we can control the initialization more precisely.

getLastLocalNodeId

public long getLastLocalNodeId()

The last allocated local and replicated node ids are used for ckpts.

getLastReplicatedNodeId

public long getLastReplicatedNodeId()

getNextLocalNodeId

public long getNextLocalNodeId()

We get a new node id of the appropriate kind when creating a new node.

getNextReplicatedNodeId

public long getNextReplicatedNodeId()

getNextTransientNodeId

public long getNextTransientNodeId()

setLastNodeId

public void setLastNodeId(long lastReplicatedNodeId,
                          long lastLocalNodeId)

Initialize the node ids, from recovery. No need to initialize the transient node ids, since those can be reused each time the environment is recreated.

updateFromReplay

public void updateFromReplay(long replayNodeId)