com.bigdata.mdi

Interface ISeparatorKeys

All Known Subinterfaces:

IPartitionMetadata

All Known Implementing Classes:

LocalPartitionMetadata, PartitionLocator

public interface ISeparatorKeys

Interface provides access to the left and right separator keys for an index partition.

Version:

$Id$

Author:

Bryan Thompson

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	getLeftSeparatorKey() The separator key that defines the left edge of that index partition (always defined) - this is the first key that can enter the index partition.
byte[]	getRightSeparatorKey() The separator key that defines the right edge of that index partition or null iff the index partition does not have a right sibling (a null has the semantics of having no upper bound).

Method Detail

getLeftSeparatorKey

byte[] getLeftSeparatorKey()

The separator key that defines the left edge of that index partition (always defined) - this is the first key that can enter the index partition. The left-most separator key for a scale-out index is always an empty byte[] since that is the smallest key that may be defined.

getRightSeparatorKey

byte[] getRightSeparatorKey()

The separator key that defines the right edge of that index partition or null iff the index partition does not have a right sibling (a null has the semantics of having no upper bound).