com.google.cloud.bigtable.data.v2.internal

Class RowSetUtil

java.lang.Object

com.google.cloud.bigtable.data.v2.internal.RowSetUtil

@InternalApi
public final class RowSetUtil
extends Object

Internal helper to split a RowSet into segments based on keys.

This class is considered an internal implementation detail and not meant to be used by applications.

See Also:

Query.shard(List), Query.getBound(), ReadRowsResumptionStrategy.getResumeRequest(ReadRowsRequest)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RowSetUtil.Split Represents a RowSet split into 2 non-overlapping parts.

Method Summary

Modifier and Type	Method and Description
static Range.ByteStringRange	getBound(com.google.bigtable.v2.RowSet rowSet) Get the bounding range of a RowSet.
static List<com.google.bigtable.v2.RowSet>	shard(com.google.bigtable.v2.RowSet rowSet, SortedSet<ByteString> splitPoints) Splits the provided RowSet into segments partitioned by the provided splitPoints.
static RowSetUtil.Split	split(com.google.bigtable.v2.RowSet rowSet, ByteString splitPoint) Splits the provided RowSet along the provided splitPoint into 2 segments.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

split

@Nonnull
public static RowSetUtil.Split split(@Nonnull
                                              com.google.bigtable.v2.RowSet rowSet,
                                              @Nonnull
                                              ByteString splitPoint)

Splits the provided RowSet along the provided splitPoint into 2 segments. The right segment will contain all keys that are strictly greater than the splitPoint and all RowRanges truncated to start right after the splitPoint.

shard

@Nonnull
public static List<com.google.bigtable.v2.RowSet> shard(@Nonnull
                                                                 com.google.bigtable.v2.RowSet rowSet,
                                                                 @Nonnull
                                                                 SortedSet<ByteString> splitPoints)

Splits the provided RowSet into segments partitioned by the provided splitPoints. Each split point represents the last row of the corresponding segment. The row keys contained in the provided RowSet will be distributed across the segments. Each range in the RowSet will be split up across each segment.

See Also:

for more details.

getBound

public static Range.ByteStringRange getBound(com.google.bigtable.v2.RowSet rowSet)

Get the bounding range of a RowSet.