com.google.cloud.bigtable.hbase.adapters

Class SampledRowKeysAdapter

java.lang.Object

com.google.cloud.bigtable.hbase.adapters.SampledRowKeysAdapter

@InternalApi(value="For internal usage only")
public abstract class SampledRowKeysAdapter
extends Object

SampledRowKeysAdapter class.

For internal use only - public for technical reasons.

Field Summary

Fields

Modifier and Type	Field and Description
protected static Logger	LOG Constant LOG
protected org.apache.hadoop.hbase.ServerName	serverName
protected org.apache.hadoop.hbase.TableName	tableName

Constructor Summary

Constructors

Constructor and Description
SampledRowKeysAdapter(org.apache.hadoop.hbase.TableName tableName, org.apache.hadoop.hbase.ServerName serverName) Constructor for SampledRowKeysAdapter.

Method Summary

Modifier and Type	Method and Description
List<org.apache.hadoop.hbase.HRegionLocation>	adaptResponse(List<com.google.cloud.bigtable.data.v2.models.KeyOffset> responses) adaptResponse.
protected abstract org.apache.hadoop.hbase.HRegionLocation	createRegionLocation(byte[] startKey, byte[] endKey) HBase 1.x and 2.x have non compatible HRegionInfo classes.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final Logger LOG

Constant LOG

tableName

protected final org.apache.hadoop.hbase.TableName tableName

serverName

protected final org.apache.hadoop.hbase.ServerName serverName

Constructor Detail

SampledRowKeysAdapter

public SampledRowKeysAdapter(org.apache.hadoop.hbase.TableName tableName,
                             org.apache.hadoop.hbase.ServerName serverName)

Constructor for SampledRowKeysAdapter.

Parameters:

tableName - a TableName object.

serverName - a ServerName object.

Method Detail

adaptResponse

public List<org.apache.hadoop.hbase.HRegionLocation> adaptResponse(List<com.google.cloud.bigtable.data.v2.models.KeyOffset> responses)

adaptResponse.

Parameters:

responses - a List object.

Returns:

a List object.

createRegionLocation

protected abstract org.apache.hadoop.hbase.HRegionLocation createRegionLocation(byte[] startKey,
                                                                                byte[] endKey)

HBase 1.x and 2.x have non compatible HRegionInfo classes. HBase 2.x introduces a RegionInfo interface, which makes the two hbase classes with the same name binary incompatible. HRegionLocation uses RegionInfo instead of HRegionInfo, causing confusion and delay. AbstractBigtableConnection.getRegionLocator(TableName) calls an abstract method which subclasses will construct appropriate SampledRowKeysAdapter implementations.

Parameters:

startKey - a byte array.

endKey - a byte array.

Returns:

a HRegionLocation object.