com.google.cloud.bigtable.data.v2.stub.readrows

Class ReadRowsResumptionStrategy<RowT>

java.lang.Object

com.google.cloud.bigtable.data.v2.stub.readrows.ReadRowsResumptionStrategy<RowT>

All Implemented Interfaces:

StreamResumptionStrategy<com.google.bigtable.v2.ReadRowsRequest,RowT>

@InternalApi
public class ReadRowsResumptionStrategy<RowT>
extends Object
implements StreamResumptionStrategy<com.google.bigtable.v2.ReadRowsRequest,RowT>

An implementation of a StreamResumptionStrategy for merged rows. This class tracks the last complete row seen and upon retry can build a request to resume the stream from where it left off.

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

Constructor Summary

Constructors

Constructor and Description
ReadRowsResumptionStrategy(RowAdapter<RowT> rowAdapter)

Method Summary

Modifier and Type	Method and Description
boolean	canResume()
StreamResumptionStrategy<com.google.bigtable.v2.ReadRowsRequest,RowT>	createNew()
com.google.bigtable.v2.ReadRowsRequest	getResumeRequest(com.google.bigtable.v2.ReadRowsRequest originalRequest)
RowT	processResponse(RowT response)

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadRowsResumptionStrategy

public ReadRowsResumptionStrategy(RowAdapter<RowT> rowAdapter)

Method Detail

canResume

public boolean canResume()

Specified by:

canResume in interface StreamResumptionStrategy<com.google.bigtable.v2.ReadRowsRequest,RowT>

createNew

public StreamResumptionStrategy<com.google.bigtable.v2.ReadRowsRequest,RowT> createNew()

Specified by:

createNew in interface StreamResumptionStrategy<com.google.bigtable.v2.ReadRowsRequest,RowT>

processResponse

public RowT processResponse(RowT response)

Specified by:

processResponse in interface StreamResumptionStrategy<com.google.bigtable.v2.ReadRowsRequest,RowT>

getResumeRequest

public com.google.bigtable.v2.ReadRowsRequest getResumeRequest(com.google.bigtable.v2.ReadRowsRequest originalRequest)

Given a request, this implementation will narrow that request to exclude all row keys and ranges that would produce rows that come before lastKey. Furthermore this implementation takes care to update the row limit of the request to account for all of the received rows.

Specified by:

getResumeRequest in interface StreamResumptionStrategy<com.google.bigtable.v2.ReadRowsRequest,RowT>