org.apache.jackrabbit.oak.segment

Interface SegmentIdProvider

All Known Implementing Classes:

SegmentTracker

public interface SegmentIdProvider

Instances of this class provides SegmentId instances of a given SegmentStore and creates new SegmentId instances on the fly if required.

Method Summary

Modifier and Type	Method and Description
int	getSegmentIdCount()
@NotNull SegmentId	newBulkSegmentId() Provide a SegmentId for a segment of type "data".
@NotNull SegmentId	newDataSegmentId() Provide a SegmentId for a segment of type "bulk".
@NotNull SegmentId	newSegmentId(long msb, long lsb) Provide a SegmentId represented by the given MSB/LSB pair.

Method Detail

getSegmentIdCount

int getSegmentIdCount()

Returns:

The number of distinct segment ids this provider is tracking.

newSegmentId

@NotNull
@NotNull SegmentId newSegmentId(long msb,
                                         long lsb)

Provide a SegmentId represented by the given MSB/LSB pair.

Parameters:

msb - The most significant bits of the SegmentId.

lsb - The least significant bits of the SegmentId.

Returns:

A non-null instance of SegmentId.

newDataSegmentId

@NotNull
@NotNull SegmentId newDataSegmentId()

Provide a SegmentId for a segment of type "bulk".

Returns:

A non-null instance of SegmentId.

newBulkSegmentId

@NotNull
@NotNull SegmentId newBulkSegmentId()

Provide a SegmentId for a segment of type "data".

Returns:

A non-null instance of SegmentId.