com.j_spaces.core.cache

Class TerminatingFifoXtnsInfo

java.lang.Object

com.j_spaces.core.cache.TerminatingFifoXtnsInfo

public class TerminatingFifoXtnsInfo
extends Object

contanis information regarding terminatiing transactions which have fifo entries - the seq number of last terminating xtn and info regarding terminating entries

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TerminatingFifoXtnsInfo.FifoXtnEntryInfo
static class	TerminatingFifoXtnsInfo.FifoXtnWriteLockEntryInfo

Field Summary

Fields

Modifier and Type	Field and Description
ConcurrentHashMap<TerminatingFifoXtnsInfo.FifoXtnEntryInfo,TerminatingFifoXtnsInfo.FifoXtnEntryInfo>	_terminatingXtnsEntries
static long	UNKNOWN_FIFO_XTN

Constructor Summary

Constructors

Constructor and Description
TerminatingFifoXtnsInfo()

Method Summary

Modifier and Type	Method and Description
TerminatingFifoXtnsInfo.FifoXtnEntryInfo	getFifoEntryXtnInfo(IEntryHolder eh)
long	getLatestTTransactionTerminationNum()
ConcurrentHashMap<TerminatingFifoXtnsInfo.FifoXtnEntryInfo,TerminatingFifoXtnsInfo.FifoXtnEntryInfo>	getTerminatingXtnsEntries()
static boolean	isSeqTransactionGT(long xtn1, long xtn2) method returns true if xtn1 is sequentially GT xtn2
void	removeFifoXtnInfoForEntry(IEntryHolder eh) remove fifo xtn info for entry MUST be called when entry is locked
void	setFifoCreationXtnInfoForEntry(IEntryHolder eh, long xtnNumber) create fifo xtn info for entry MUST be called when entry is locked
void	setLatestTransactionTerminationNum(long xtnTerminationNum)
void	updateFifoXtnInfoForEntry(IEntryHolder eh, long xtnNumber, boolean writeLock, boolean entryWritingXtn) update fifo xtn info for entry MUST be called when entry is locked update write lock if writeLock is true, else update read lock, also update the xtn which committed the entry

Methods inherited from class java.lang.Object

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

Field Detail

UNKNOWN_FIFO_XTN

public static final long UNKNOWN_FIFO_XTN

See Also:

Constant Field Values

_terminatingXtnsEntries

public ConcurrentHashMap<TerminatingFifoXtnsInfo.FifoXtnEntryInfo,TerminatingFifoXtnsInfo.FifoXtnEntryInfo> _terminatingXtnsEntries

Constructor Detail

TerminatingFifoXtnsInfo

public TerminatingFifoXtnsInfo()

Method Detail

getLatestTTransactionTerminationNum

public long getLatestTTransactionTerminationNum()

setLatestTransactionTerminationNum

public void setLatestTransactionTerminationNum(long xtnTerminationNum)

setFifoCreationXtnInfoForEntry

public void setFifoCreationXtnInfoForEntry(IEntryHolder eh,
                                           long xtnNumber)

create fifo xtn info for entry MUST be called when entry is locked

updateFifoXtnInfoForEntry

public void updateFifoXtnInfoForEntry(IEntryHolder eh,
                                      long xtnNumber,
                                      boolean writeLock,
                                      boolean entryWritingXtn)

update fifo xtn info for entry MUST be called when entry is locked update write lock if writeLock is true, else update read lock, also update the xtn which committed the entry

removeFifoXtnInfoForEntry

public void removeFifoXtnInfoForEntry(IEntryHolder eh)

remove fifo xtn info for entry MUST be called when entry is locked

getFifoEntryXtnInfo

public TerminatingFifoXtnsInfo.FifoXtnEntryInfo getFifoEntryXtnInfo(IEntryHolder eh)

getTerminatingXtnsEntries

public ConcurrentHashMap<TerminatingFifoXtnsInfo.FifoXtnEntryInfo,TerminatingFifoXtnsInfo.FifoXtnEntryInfo> getTerminatingXtnsEntries()

isSeqTransactionGT

public static boolean isSeqTransactionGT(long xtn1,
                                         long xtn2)

method returns true if xtn1 is sequentially GT xtn2

Returns:

true if xtn1 GT xtn2