Package io.deephaven.extensions.barrage.table

Interface BarrageTable.ViewportChangedCallback

Enclosing class:

BarrageTable

public static interface BarrageTable.ViewportChangedCallback

Method Summary

Modifier and Type	Method	Description
void	onError(@NotNull Throwable t)	Called when there is an unexpected error.
boolean	viewportChanged(@Nullable RowSet rowSet, @Nullable BitSet columns, boolean reverse)	Called when the viewport has changed.

Method Details

viewportChanged

boolean viewportChanged(@Nullable
 @Nullable RowSet rowSet,
 @Nullable
 @Nullable BitSet columns,
 boolean reverse)

Called when the viewport has changed. Note that the server may send many viewport changes for a single request; as the server may choose to expand the viewport slowly to avoid update-graph lock contention.

Parameters:

rowSet - the new position space viewport - is null if the server is now respecting a full subscription

columns - the columns that are included in the viewport - is null if all columns are subscribed

reverse - whether the viewport is reversed - a reversed viewport

Returns:

true to continue to receive viewport changes, false to stop receiving viewport changes

onError

void onError(@NotNull
 @NotNull Throwable t)

Called when there is an unexpected error. Both remote and local failures will be reported. Once a failure occurs, this barrage table will stop receiving and processing updates from the remote server.

Parameters:

t - the error