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Java Source Code / Java Documentation » Database DBMS » Quadcap Embeddable Database » com.quadcap.sql.file 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


com.quadcap.sql.file.Logger

All known Subclasses:   com.quadcap.sql.file.Logger1,
Logger
public interface Logger (Code)

author:
   Stan Bailes




Method Summary
 voidcheckpoint()
     Checkpoint.
 voidclose()
     Dismissed.
 intgetActiveTransactionCount()
    
 LongMapgetActiveTransactions()
    
 intgetCheckpoint()
    
 intgetEnd()
    
 LogEntrygetFirstOp()
    
 LogEntrygetLastOp(long t)
    
 LogEntrygetNextOp()
    
 longgetOldestTransaction()
    
 LogEntrygetPrevOp(LogEntry op)
    
 voidinit(Log log, boolean create, Properties props)
    
 voidput(LogEntry op)
     Write a single op to the buffer.
 voidreset()
    
 voidsetRedoState(LogEntry op, int state)
    
 voidsync()
     Make it so.



Method Detail
checkpoint
void checkpoint() throws IOException(Code)
Checkpoint.



close
void close() throws IOException(Code)
Dismissed.



getActiveTransactionCount
int getActiveTransactionCount()(Code)
Return the number of active transactions



getActiveTransactions
LongMap getActiveTransactions()(Code)
Return a map containing the active transaction ids as keys



getCheckpoint
int getCheckpoint()(Code)
Return the position of the last checkpoint



getEnd
int getEnd()(Code)
Return the end position of the log buffer



getFirstOp
LogEntry getFirstOp() throws IOException(Code)
Return the first op in the log



getLastOp
LogEntry getLastOp(long t) throws IOException(Code)
Return the last op in the log for the specified transaction



getNextOp
LogEntry getNextOp() throws IOException(Code)
Return the next op



getOldestTransaction
long getOldestTransaction()(Code)
Return the id of the oldest active transaction



getPrevOp
LogEntry getPrevOp(LogEntry op) throws IOException(Code)
Return the preceding op (of the same transaction)



init
void init(Log log, boolean create, Properties props) throws IOException(Code)
Initialization



put
void put(LogEntry op) throws IOException(Code)
Write a single op to the buffer.



reset
void reset() throws IOException(Code)
Reset the entire log to be empty



setRedoState
void setRedoState(LogEntry op, int state) throws IOException(Code)
Set the 'redo' value for the most recently read LogEntry



sync
void sync() throws IOException(Code)
Make it so.



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