Examples with SnapshotTableRequest io.deephaven.javascript.proto.dhinternal.io.deephaven.proto.table_pb.SnapshotTableRequest used on opensource projects

Example 1 with SnapshotTableRequest

use of io.deephaven.javascript.proto.dhinternal.io.deephaven.proto.table_pb.SnapshotTableRequest in project deephaven-core by deephaven.

the class JsTable method snapshot.

@JsMethod
public Promise<JsTable> snapshot(JsTable rightHandSide, @JsOptional Boolean doInitialSnapshot, @JsOptional String[] stampColumns) {
    Objects.requireNonNull(rightHandSide, "Snapshot right-hand-side table");
    final boolean realDoInitialSnapshot;
    if (doInitialSnapshot != null) {
        realDoInitialSnapshot = doInitialSnapshot;
    } else {
        realDoInitialSnapshot = true;
    }
    final String[] realStampColums;
    if (stampColumns == null) {
        // server doesn't like null
        realStampColums = new String[0];
    } else {
        // make sure we pass an actual string array
        realStampColums = Arrays.stream(stampColumns).toArray(String[]::new);
    }
    final String fetchSummary = "snapshot(" + rightHandSide + ", " + doInitialSnapshot + ", " + Arrays.toString(stampColumns) + ")";
    return workerConnection.newState((c, state, metadata) -> {
        SnapshotTableRequest request = new SnapshotTableRequest();
        request.setLeftId(state().getHandle().makeTableReference());
        request.setRightId(rightHandSide.state().getHandle().makeTableReference());
        request.setResultId(state.getHandle().makeTicket());
        request.setDoInitialSnapshot(realDoInitialSnapshot);
        request.setStampColumnsList(realStampColums);
        workerConnection.tableServiceClient().snapshot(request, metadata, c::apply);
    }, fetchSummary).refetch(this, workerConnection.metadata()).then(state -> Promise.resolve(new JsTable(workerConnection, state)));
}

Example 2 with SnapshotTableRequest

use of io.deephaven.javascript.proto.dhinternal.io.deephaven.proto.table_pb.SnapshotTableRequest in project deephaven-core by deephaven.

the class JsTable method freeze.

@JsMethod
public Promise<JsTable> freeze() {
    return workerConnection.newState((c, state, metadata) -> {
        SnapshotTableRequest request = new SnapshotTableRequest();
        // explicit null to signal that we are just freezing this table
        request.setLeftId(null);
        request.setRightId(state().getHandle().makeTableReference());
        request.setResultId(state.getHandle().makeTicket());
        request.setDoInitialSnapshot(true);
        request.setStampColumnsList(new String[0]);
        workerConnection.tableServiceClient().snapshot(request, metadata, c::apply);
    }, "freeze").refetch(this, workerConnection.metadata()).then(state -> Promise.resolve(new JsTable(workerConnection, state)));
}