io.grpc.stub.StreamObserver<com.google.bigtable.v2.ReadRowsResponse>
public class RowMerger extends Object implements io.grpc.stub.StreamObserver<com.google.bigtable.v2.ReadRowsResponse>
Builds a complete FlatRow
from ReadRowsResponse
objects. A
ReadRowsResponse
may contain a single FlatRow
, multiple
FlatRow
s, or even a part of a Cell
if the cell is
Each RowMerger object is valid only for building a single FlatRow. Expected usage is along the lines of:
StreamObserver
<FlatRow
> observer = ...; RowMerger rowMerger = new RowMerger(observer); ... rowMerger.onNext(...); .. rowMerger.onComplete();
When a complete row is found, StreamObserver.onNext(Object)
will be called.
StreamObserver.onError(Throwable)
will be called for
NOTE: RowMerger is not threadsafe.
Constructor | Description |
---|---|
RowMerger(io.grpc.stub.StreamObserver<FlatRow> observer) |
Constructor for RowMerger.
|
Modifier and Type | Method | Description |
---|---|---|
void |
clearRowInProgress() |
|
com.google.protobuf.ByteString |
getLastCompletedRowKey() |
|
Integer |
getRowCountInLastMessage() |
|
void |
onCompleted() |
All
ReadRowsResponse have been processed, and HTTP OK was sent. |
void |
onError(Throwable e) |
|
void |
onNext(com.google.bigtable.v2.ReadRowsResponse readRowsResponse) |
|
static List<FlatRow> |
toRows(Iterable<com.google.bigtable.v2.ReadRowsResponse> responses) |
toRows.
|
protected static final Logger LOG
public RowMerger(io.grpc.stub.StreamObserver<FlatRow> observer)
Constructor for RowMerger.
observer
- a StreamObserver
object.public static List<FlatRow> toRows(Iterable<com.google.bigtable.v2.ReadRowsResponse> responses)
toRows.
public void clearRowInProgress()
public final void onNext(com.google.bigtable.v2.ReadRowsResponse readRowsResponse)
onNext
in interface io.grpc.stub.StreamObserver<com.google.bigtable.v2.ReadRowsResponse>
public Integer getRowCountInLastMessage()
onNext(ReadRowsResponse)
.public com.google.protobuf.ByteString getLastCompletedRowKey()
public void onCompleted()
ReadRowsResponse
have been processed, and HTTP OK was sent.onCompleted
in interface io.grpc.stub.StreamObserver<com.google.bigtable.v2.ReadRowsResponse>
public void onError(Throwable e)
onError
in interface io.grpc.stub.StreamObserver<com.google.bigtable.v2.ReadRowsResponse>