org.h2.mvstore.db
Class MVTableEngine.Store

java.lang.Object
  extended by org.h2.mvstore.db.MVTableEngine.Store
Enclosing class:
MVTableEngine

public static class MVTableEngine.Store
extends java.lang.Object

A store with open tables.


Constructor Summary
MVTableEngine.Store(Database db, MVStore store)
           
 
Method Summary
 void close(long maxCompactTime)
          Close the store.
 void closeImmediately()
          Close the store, without persisting changes.
 void compactFile(long maxCompactTime)
          Compact the database file, that is, compact blocks that have a low fill rate, and move chunks next to each other.
 void flush()
          Store all pending changes.
 java.util.ArrayList<InDoubtTransaction> getInDoubtTransactions()
           
 java.io.InputStream getInputStream()
           
 MVStore getStore()
           
 java.util.HashMap<java.lang.String,MVTable> getTables()
           
 TransactionStore getTransactionStore()
           
 void initTransactions()
          Commit all transactions that are in the committing state, and rollback all open transactions.
 java.lang.String nextTemporaryMapName()
          Get the name of the next available temporary map.
 void prepareCommit(Session session, java.lang.String transactionName)
          Prepare a transaction.
 void removeTable(MVTable table)
          Remove a table.
 void removeTemporaryMaps()
          Remove all temporary maps.
 void setCacheSize(int kb)
           
 java.util.Map<java.lang.String,java.lang.Integer> statisticsEnd()
          Stop collecting statistics.
 void statisticsStart()
          Start collecting statistics.
 void sync()
          Force the changes to disk.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

MVTableEngine.Store

public MVTableEngine.Store(Database db,
                           MVStore store)
Method Detail

getStore

public MVStore getStore()

getTransactionStore

public TransactionStore getTransactionStore()

getTables

public java.util.HashMap<java.lang.String,MVTable> getTables()

removeTable

public void removeTable(MVTable table)
Remove a table.

Parameters:
table - the table

flush

public void flush()
Store all pending changes.


closeImmediately

public void closeImmediately()
Close the store, without persisting changes.


initTransactions

public void initTransactions()
Commit all transactions that are in the committing state, and rollback all open transactions.


removeTemporaryMaps

public void removeTemporaryMaps()
Remove all temporary maps.


nextTemporaryMapName

public java.lang.String nextTemporaryMapName()
Get the name of the next available temporary map.

Returns:
the map name

prepareCommit

public void prepareCommit(Session session,
                          java.lang.String transactionName)
Prepare a transaction.

Parameters:
session - the session
transactionName - the transaction name (may be null)

getInDoubtTransactions

public java.util.ArrayList<InDoubtTransaction> getInDoubtTransactions()

setCacheSize

public void setCacheSize(int kb)

getInputStream

public java.io.InputStream getInputStream()

sync

public void sync()
Force the changes to disk.


compactFile

public void compactFile(long maxCompactTime)
Compact the database file, that is, compact blocks that have a low fill rate, and move chunks next to each other. This will typically shrink the database file. Changes are flushed to the file, and old chunks are overwritten.

Parameters:
maxCompactTime - the maximum time in milliseconds to compact

close

public void close(long maxCompactTime)
Close the store. Pending changes are persisted. Chunks with a low fill rate are compacted, but old chunks are kept for some time, so most likely the database file will not shrink.

Parameters:
maxCompactTime - the maximum time in milliseconds to compact

statisticsStart

public void statisticsStart()
Start collecting statistics.


statisticsEnd

public java.util.Map<java.lang.String,java.lang.Integer> statisticsEnd()
Stop collecting statistics.

Returns:
the statistics