Package io.deephaven.server.table.ops

Class HeadOrTailGrpcImpl

java.lang.Object

io.deephaven.server.table.ops.GrpcTableOperation<io.deephaven.proto.backplane.grpc.HeadOrTailRequest>

io.deephaven.server.table.ops.HeadOrTailGrpcImpl

Direct Known Subclasses:

HeadOrTailGrpcImpl.HeadGrpcImpl, HeadOrTailGrpcImpl.TailGrpcImpl

public abstract class HeadOrTailGrpcImpl
extends GrpcTableOperation<io.deephaven.proto.backplane.grpc.HeadOrTailRequest>

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	HeadOrTailGrpcImpl.HeadGrpcImpl
protected static interface	HeadOrTailGrpcImpl.RealTableOperation
static class	HeadOrTailGrpcImpl.TailGrpcImpl

Nested classes/interfaces inherited from class io.deephaven.server.table.ops.GrpcTableOperation

GrpcTableOperation.MultiDependencyFunction<T>, GrpcTableOperation.PermissionFunction<T>

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	HeadOrTailGrpcImpl(GrpcTableOperation.PermissionFunction<io.deephaven.proto.backplane.grpc.HeadOrTailRequest> permission, Function<io.deephaven.proto.backplane.grpc.BatchTableRequest.Operation,io.deephaven.proto.backplane.grpc.HeadOrTailRequest> getRequest, HeadOrTailGrpcImpl.RealTableOperation realTableOperation)

Method Summary

Modifier and Type	Method	Description
io.deephaven.engine.table.Table	create(io.deephaven.proto.backplane.grpc.HeadOrTailRequest request, List<SessionState.ExportObject<io.deephaven.engine.table.Table>> sourceTables)	This actually performs the operation.
void	validateRequest(io.deephaven.proto.backplane.grpc.HeadOrTailRequest request)	This method validates preconditions of the request.

Methods inherited from class io.deephaven.server.table.ops.GrpcTableOperation

checkPermission, getRequestFromOperation, getResultTicket, getTableReferences

Methods inherited from class java.lang.Object

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

Constructor Details

HeadOrTailGrpcImpl

protected HeadOrTailGrpcImpl(GrpcTableOperation.PermissionFunction<io.deephaven.proto.backplane.grpc.HeadOrTailRequest> permission,
 Function<io.deephaven.proto.backplane.grpc.BatchTableRequest.Operation,io.deephaven.proto.backplane.grpc.HeadOrTailRequest> getRequest,
 HeadOrTailGrpcImpl.RealTableOperation realTableOperation)

Method Details

validateRequest

public void validateRequest(io.deephaven.proto.backplane.grpc.HeadOrTailRequest request)
                     throws io.grpc.StatusRuntimeException

Description copied from class: GrpcTableOperation

This method validates preconditions of the request.

Overrides:

validateRequest in class GrpcTableOperation<io.deephaven.proto.backplane.grpc.HeadOrTailRequest>

Parameters:

request - the original request from the user

Throws:

io.grpc.StatusRuntimeException - on the first failed precondition

create

public io.deephaven.engine.table.Table create(io.deephaven.proto.backplane.grpc.HeadOrTailRequest request,
 List<SessionState.ExportObject<io.deephaven.engine.table.Table>> sourceTables)

Description copied from class: GrpcTableOperation

This actually performs the operation. It will typically be performed after the

Specified by:

create in class GrpcTableOperation<io.deephaven.proto.backplane.grpc.HeadOrTailRequest>

Parameters:

request - the original request from the user

sourceTables - the source tables that this operation may or may not need

Returns:

the resulting table