com.bigdata.rwstore
Interface IRWStrategy

All Superinterfaces:

IAddressManager, IAllocationManager, IAllocationManagerStore, IBufferStrategy, ICounterSetAccess, IHistoryManager, IMRMW, IMROW, IRawStore, IStreamStore

All Known Implementing Classes:

MemStrategy, RWStrategy

public interface IRWStrategy
extends IBufferStrategy, IAllocationManager, IAllocationManagerStore, IStreamStore, IHistoryManager

Defines a marker interface to be used to indicate strategies that share RW semantics such as RWStrategy and MemStrategy

Methods have been added as required to support the clients (mostly AbstractJournal).

Author:

Martyn Cutcher

Field Summary

Fields inherited from interface com.bigdata.rawstore.IAddressManager

NULL

Method Summary

IStore	getStore() Return the backing IStore.
boolean	isCommitted(long addr) Return true iff the allocation having that address is flagged as committed.

Methods inherited from interface com.bigdata.journal.IBufferStrategy

abort, closeForWrites, commit, getAddressManager, getBufferMode, getCounters, getExtent, getHeaderSize, getInitialExtent, getMaximumExtent, getMaxRecordSize, getMetaBitsAddr, getMetaStartAddr, getNextOffset, getOffsetBits, getUserExtent, readRootBlock, requiresCommit, transferTo, truncate, useChecksums, writeRootBlock

Methods inherited from interface com.bigdata.rwstore.IAllocationManager

abortContext, detachContext, registerContext

Methods inherited from interface com.bigdata.rwstore.IAllocationManagerStore

delete, write

Methods inherited from interface com.bigdata.rawstore.IRawStore

close, delete, deleteResources, destroy, force, getFile, getResourceMetadata, getUUID, isFullyBuffered, isOpen, isReadOnly, isStable, read, size, write

Methods inherited from interface com.bigdata.rawstore.IAddressManager

getByteCount, getOffset, getPhysicalAddress, toAddr, toString

Methods inherited from interface com.bigdata.rwstore.IStreamStore

getInputStream, getOutputStream, getOutputStream

Methods inherited from interface com.bigdata.rwstore.IHistoryManager

checkDeferredFrees, getLastReleaseTime, newTx, registerExternalCache, saveDeferrals

Method Detail

getStore

IStore getStore()

Return the backing IStore.

isCommitted

boolean isCommitted(long addr)

Return true iff the allocation having that address is flagged as committed. The caller must be holding the allocation lock in order for the result to remain valid outside of the method call.

Parameters:

addr - The address.

Returns:

true iff the address is currently committed.