Package db.buffers

Interface ManagedBufferFileHandle

All Superinterfaces:

BufferFileHandle

All Known Subinterfaces:

RemoteManagedBufferFileHandle

public interface ManagedBufferFileHandle
extends BufferFileHandle

ManagedBufferFileHandle facilitates access to a ManagedBufferFile

Method Summary

Modifier and Type	Method	Description
boolean	canSave()
long	getCheckinID()
byte[]	getForwardModMapData(int oldVersion)
InputBlockStream	getInputBlockStream(byte[] changeMapData)	Provides local access to an input block stream for a given change map.
BlockStreamHandle<InputBlockStream>	getInputBlockStreamHandle(byte[] changeMapData)	Get an input block stream handle, for a given change map, which will facilitate access to a remote InputBlockStream.
BufferFileHandle	getNextChangeDataFile(boolean getFirst)
BufferFileHandle	getSaveChangeDataFile()
ManagedBufferFileHandle	getSaveFile()
void	saveCompleted(boolean commit)
void	setVersionComment(String comment)

Methods inherited from interface db.buffers.BufferFileHandle

clearParameters, close, delete, dispose, get, getBufferSize, getFreeIndexes, getIndexCount, getInputBlockStream, getInputBlockStreamHandle, getOutputBlockStream, getOutputBlockStreamHandle, getParameter, getParameterNames, isReadOnly, put, setFreeIndexes, setParameter, setReadOnly

Method Details

getSaveFile

ManagedBufferFileHandle getSaveFile()
                             throws IOException

Throws:

IOException

See Also:

• ManagedBufferFile.getSaveFile()

saveCompleted

void saveCompleted(boolean commit)
            throws IOException

Throws:

IOException

See Also:

• ManagedBufferFile.saveCompleted(boolean)

canSave

boolean canSave()
         throws IOException

Throws:

IOException

See Also:

• ManagedBufferFile.canSave()

setVersionComment

void setVersionComment(String comment)
                throws IOException

Throws:

IOException

See Also:

• ManagedBufferFile.setVersionComment(java.lang.String)

getNextChangeDataFile

BufferFileHandle getNextChangeDataFile(boolean getFirst)
                                throws IOException

Throws:

IOException

See Also:

• ManagedBufferFile.getNextChangeDataFile(boolean)

getSaveChangeDataFile

BufferFileHandle getSaveChangeDataFile()
                                throws IOException

Throws:

IOException

See Also:

• ManagedBufferFile.getSaveChangeDataFile()

getCheckinID

long getCheckinID()
           throws IOException

Throws:

IOException

See Also:

• ManagedBufferFile.getCheckinID()

getForwardModMapData

byte[] getForwardModMapData(int oldVersion)
                     throws IOException

Throws:

IOException

See Also:

• ManagedBufferFile.getForwardModMapData(int)

getInputBlockStream

InputBlockStream getInputBlockStream(byte[] changeMapData)
                              throws IOException

Provides local access to an input block stream for a given change map. This method should only be used if the associated BufferFileAdapter.isRemote() is false.

Throws:

IOException

See Also:

• ManagedBufferFileAdapter.getInputBlockStream(byte[])

getInputBlockStreamHandle

BlockStreamHandle<InputBlockStream> getInputBlockStreamHandle(byte[] changeMapData)
                                                       throws IOException

Get an input block stream handle, for a given change map, which will facilitate access to a remote InputBlockStream. The handle will facilitate use of a remote streaming interface. This method should only be used if the associated BufferFileAdapter.isRemote() is true.

Throws:

IOException

See Also:

• ManagedBufferFileAdapter.getInputBlockStream(byte[])