com.sleepycat.je.dbi

Class ReplicatedDatabaseConfig

java.lang.Object

com.sleepycat.je.log.BasicVersionedWriteLoggable

com.sleepycat.je.dbi.ReplicatedDatabaseConfig

All Implemented Interfaces:

Loggable, VersionedWriteLoggable

public class ReplicatedDatabaseConfig
extends BasicVersionedWriteLoggable

This class contains all fields of the database configuration which are persistent. This class is logged as part of a nameLN so that databases can be created on replica nodes with the correct configuration.

Constructor Summary

Constructors

Constructor and Description
ReplicatedDatabaseConfig() For reading

Method Summary

Modifier and Type	Method and Description
void	dumpLog(StringBuilder sb, boolean verbose) Write the object into the string buffer for log dumping.
Collection<VersionedWriteLoggable>	getEmbeddedLoggables()
int	getLastFormatChange() Returns the log version of the most recent format change for this loggable item.
int	getLogSize(int logVersion, boolean forReplication) Returns the number of bytes needed to store this object in the format for the specified log version.
DatabaseConfig	getReplicaConfig(EnvironmentImpl envImpl) Create a database config for use on the replica which contains all the configuration options that were conveyed by way of this class.
long	getTransactionId()
boolean	logicalEquals(Loggable other)
void	readFromLog(ByteBuffer itemBuffer, int entryVersion) Initialize this object from the data in itemBuf.
void	writeToLog(ByteBuffer logBuffer, int logVersion, boolean forReplication) Serializes this object into the specified buffer in the format for the specified log version.

Methods inherited from class com.sleepycat.je.log.BasicVersionedWriteLoggable

getLogSize, hasReplicationFormat, isReplicationFormatWorthwhile, writeToLog

Methods inherited from class java.lang.Object

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

Constructor Detail

ReplicatedDatabaseConfig

public ReplicatedDatabaseConfig()

For reading

Method Detail

getReplicaConfig

public DatabaseConfig getReplicaConfig(EnvironmentImpl envImpl)

Create a database config for use on the replica which contains all the configuration options that were conveyed by way of this class.

getLastFormatChange

public int getLastFormatChange()

Description copied from interface: VersionedWriteLoggable

Returns the log version of the most recent format change for this loggable item.

Returns:

the log version of the most recent format change

See Also:

ReplicableLogEntry.getLastFormatChange()

getEmbeddedLoggables

public Collection<VersionedWriteLoggable> getEmbeddedLoggables()

See Also:

ReplicableLogEntry.getEmbeddedLoggables()

getLogSize

public int getLogSize(int logVersion,
                      boolean forReplication)

Description copied from interface: VersionedWriteLoggable

Returns the number of bytes needed to store this object in the format for the specified log version. Earlier log versions only need to be supported for log entries with format changes made in LogEntryType.LOG_VERSION_REPLICATE_OLDER or greater.

Parameters:

logVersion - the log version

forReplication - whether the entry will be sent over the wire, and not written to the log.

Returns:

the number of bytes to store this object for the log version

writeToLog

public void writeToLog(ByteBuffer logBuffer,
                       int logVersion,
                       boolean forReplication)

Description copied from interface: VersionedWriteLoggable

Serializes this object into the specified buffer in the format for the specified log version. Earlier log versions only need to be supported for log entries with format changes made in LogEntryType.LOG_VERSION_REPLICATE_OLDER or greater.

Parameters:

logBuffer - the destination buffer

logVersion - the log version

forReplication - whether the entry will be sent over the wire, and not written to the log.

readFromLog

public void readFromLog(ByteBuffer itemBuffer,
                        int entryVersion)

Description copied from interface: Loggable

Initialize this object from the data in itemBuf.

Parameters:

itemBuffer - the source buffer

entryVersion - the log version of the data

dumpLog

public void dumpLog(StringBuilder sb,
                    boolean verbose)

Description copied from interface: Loggable

Write the object into the string buffer for log dumping. Each object should be dumped without indentation or new lines and should be valid XML.

Parameters:

sb - destination string buffer

verbose - if true, dump the full, verbose version

getTransactionId

public long getTransactionId()

Returns:

the transaction id embedded within this loggable object. Objects that have no transaction id should return 0.

logicalEquals

public boolean logicalEquals(Loggable other)

Returns:

true if these two loggable items are logically the same. Used for replication testing.