com.sleepycat.je.tree
Class INDupDeleteInfo

java.lang.Object
  extended by com.sleepycat.je.tree.INDupDeleteInfo
All Implemented Interfaces:
LoggableObject, LogReadable, LogWritable

public class INDupDeleteInfo
extends Object
implements LoggableObject, LogReadable, LogWritable

INDupDeleteInfo encapsulates the information logged about the removal of a child from a duplicate IN during IN compression.


Constructor Summary
INDupDeleteInfo()
          Used by logging system only.
INDupDeleteInfo(long deletedNodeId, byte[] deletedMainKey, byte[] deletedDupKey, DatabaseId dbId)
          Create a new delete info entry.
 
Method Summary
 boolean countAsObsoleteWhenLogged()
          Returns true if this item should be counted as obsoleted when logged.
 void dumpLog(StringBuffer sb, boolean verbose)
          Write the object into the string buffer for log dumping.
 DatabaseId getDatabaseId()
           
 byte[] getDeletedDupKey()
           
 byte[] getDeletedMainKey()
           
 long getDeletedNodeId()
           
 int getLogSize()
           
 LogEntryType getLogType()
          All objects that are reponsible for a generating a type of log entry must implement this.
 long getTransactionId()
           
 boolean logEntryIsTransactional()
           
 boolean marshallOutsideWriteLatch()
          Return true if this item can be marshalled outside the log write latch.
 void postLogWork(long justLoggedLsn)
          Do any processing we need to do after logging, while under the logging latch.
 void readFromLog(ByteBuffer itemBuffer, byte entryTypeVersion)
          Initialize this object from the data in itemBuf.
 void writeToLog(ByteBuffer logBuffer)
          Serialize this object into the buffer.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

INDupDeleteInfo

public INDupDeleteInfo(long deletedNodeId,
                       byte[] deletedMainKey,
                       byte[] deletedDupKey,
                       DatabaseId dbId)
Create a new delete info entry.


INDupDeleteInfo

public INDupDeleteInfo()
Used by logging system only.

Method Detail

getDeletedNodeId

public long getDeletedNodeId()

getDeletedMainKey

public byte[] getDeletedMainKey()

getDeletedDupKey

public byte[] getDeletedDupKey()

getDatabaseId

public DatabaseId getDatabaseId()

getLogType

public LogEntryType getLogType()
Description copied from interface: LoggableObject
All objects that are reponsible for a generating a type of log entry must implement this.

Specified by:
getLogType in interface LoggableObject
Returns:
the type of log entry
See Also:
LoggableObject.getLogType()

marshallOutsideWriteLatch

public boolean marshallOutsideWriteLatch()
Description copied from interface: LoggableObject
Return true if this item can be marshalled outside the log write latch.

Specified by:
marshallOutsideWriteLatch in interface LoggableObject
See Also:
Can be marshalled outside the log write latch.

countAsObsoleteWhenLogged

public boolean countAsObsoleteWhenLogged()
Description copied from interface: LoggableObject
Returns true if this item should be counted as obsoleted when logged. This currently applies to deleted LNs only.

Specified by:
countAsObsoleteWhenLogged in interface LoggableObject
See Also:
LoggableObject.countAsObsoleteWhenLogged()

postLogWork

public void postLogWork(long justLoggedLsn)
Description copied from interface: LoggableObject
Do any processing we need to do after logging, while under the logging latch.

Specified by:
postLogWork in interface LoggableObject
See Also:
LoggableObject.postLogWork(long)

getLogSize

public int getLogSize()
Specified by:
getLogSize in interface LogWritable
Returns:
number of bytes used to store this object.
See Also:
LogWritable.getLogSize()

writeToLog

public void writeToLog(ByteBuffer logBuffer)
Description copied from interface: LogWritable
Serialize this object into the buffer.

Specified by:
writeToLog in interface LogWritable
Parameters:
logBuffer - is the destination buffer
See Also:
LogWritable.writeToLog(java.nio.ByteBuffer)

readFromLog

public void readFromLog(ByteBuffer itemBuffer,
                        byte entryTypeVersion)
                 throws LogException
Description copied from interface: LogReadable
Initialize this object from the data in itemBuf.

Specified by:
readFromLog in interface LogReadable
Throws:
LogException
See Also:
LogReadable.readFromLog(java.nio.ByteBuffer, byte)

dumpLog

public void dumpLog(StringBuffer sb,
                    boolean verbose)
Description copied from interface: LogReadable
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.

Specified by:
dumpLog in interface LogReadable
Parameters:
sb - destination string buffer
verbose - if true, dump the full, verbose version
See Also:
LogReadable.dumpLog(java.lang.StringBuffer, boolean)

logEntryIsTransactional

public boolean logEntryIsTransactional()
Specified by:
logEntryIsTransactional in interface LogReadable
Returns:
true if the LogEntry is a transactional log entry type.
See Also:
LogReadable.logEntryIsTransactional()

getTransactionId

public long getTransactionId()
Specified by:
getTransactionId in interface LogReadable
Returns:
return the transaction id if this log entry is transactional, 0 otherwise.
See Also:
LogReadable.getTransactionId()


Copyright 2004-2005 Sleepycat, Inc. All Rights Reserved.