org.bytedeco.arrow

Class TableFuture

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.arrow.TableFuture

All Implemented Interfaces:

AutoCloseable

@Name(value="arrow::Future<std::shared_ptr<arrow::Table> >")
 @Properties(inherit=arrow.class)
public class TableFuture
extends Pointer

Nested Class Summary

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator, Pointer.ReferenceCounter

Field Summary

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
TableFuture()
TableFuture(long size) Native array allocator.
TableFuture(Pointer p) Pointer cast constructor.
TableFuture(Status s) \brief Implicit constructor to create a future from a Status, enabling use of macros like ARROW_RETURN_NOT_OK.
TableFuture(Table val) \brief Implicit constructor to create a finished future from a value
TableFuture(TableResult res) \brief Implicit constructor to create a future from a Result, enabling use of macros like ARROW_ASSIGN_OR_RAISE.

Method Summary

Modifier and Type	Method and Description
Future	asFuture() \brief Future is convertible to Future<>, which views only the Status of the original.
TableFuture	getPointer(long i)
boolean	is_finished() \brief Whether the Future is finished A false return value is only indicative, as the Future can complete concurrently.
boolean	is_valid()
static TableFuture	Make() \brief Producer API: instantiate a valid Future The Future's state is initialized with PENDING.
static TableFuture	MakeFinished(TableResult res) \brief Producer API: instantiate a finished Future
void	MarkFinished(TableResult res) \brief Producer API: mark Future finished The Future's result is set to res.
TableResult	MoveResult() \brief Returns an rvalue to the result.
TableFuture	position(long position)
TableResult	result() \brief Wait for the Future to complete and return its Result
arrow.FutureState	state() \brief Return the Future's current state A return value of PENDING is only indicative, as the Future can complete concurrently.
Status	status() \brief Wait for the Future to complete and return its Status
void	Wait() \brief Wait for the Future to complete
boolean	Wait(double seconds) \brief Wait for the Future to complete, or for the timeout to expire true is returned if the Future completed, false if the timeout expired.

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, availablePhysicalBytes, calloc, capacity, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, getPointer, getPointer, getPointer, hashCode, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetAddress, offsetof, offsetof, parseBytes, physicalBytes, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, sizeof, toString, totalBytes, totalCount, totalPhysicalBytes, withDeallocator, zero

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

TableFuture

public TableFuture(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

TableFuture

public TableFuture(long size)

Native array allocator. Access with Pointer.position(long).

TableFuture

public TableFuture()

TableFuture

public TableFuture(@SharedPtr @Cast(value={"","std::shared_ptr<arrow::Table>"})
                   Table val)

\brief Implicit constructor to create a finished future from a value

TableFuture

public TableFuture(@ByVal
                   TableResult res)

\brief Implicit constructor to create a future from a Result, enabling use of macros like ARROW_ASSIGN_OR_RAISE.

TableFuture

public TableFuture(@ByVal
                   Status s)

\brief Implicit constructor to create a future from a Status, enabling use of macros like ARROW_RETURN_NOT_OK.

Method Detail

position

public TableFuture position(long position)

Overrides:

position in class Pointer

getPointer

public TableFuture getPointer(long i)

Overrides:

getPointer in class Pointer

is_valid

@Cast(value="bool")
public boolean is_valid()

state

public arrow.FutureState state()

\brief Return the Future's current state A return value of PENDING is only indicative, as the Future can complete concurrently. A return value of FAILURE or SUCCESS is definitive, though.

is_finished

@Cast(value="bool")
public boolean is_finished()

\brief Whether the Future is finished A false return value is only indicative, as the Future can complete concurrently. A true return value is definitive, though.

result

@Const
 @ByRef
public TableResult result()

\brief Wait for the Future to complete and return its Result

MoveResult

@ByRef(value=true)
public TableResult MoveResult()

\brief Returns an rvalue to the result. This method is potentially unsafe The future is not the unique owner of the result, copies of a future will also point to the same result. You must make sure that no other copies of the future exist. Attempts to add callbacks after you move the result will result in undefined behavior.

status

@Const
 @ByRef
public Status status()

\brief Wait for the Future to complete and return its Status

asFuture

@ByVal
 @Name(value="operator arrow::Future<>")
public Future asFuture()

\brief Future is convertible to Future<>, which views only the Status of the original. Marking the returned Future Finished is not supported.

Wait

public void Wait()

\brief Wait for the Future to complete

Wait

@Cast(value="bool")
public boolean Wait(double seconds)

\brief Wait for the Future to complete, or for the timeout to expire true is returned if the Future completed, false if the timeout expired. Note a false value is only indicative, as the Future can complete concurrently.

MarkFinished

public void MarkFinished(@ByVal
                         TableResult res)

\brief Producer API: mark Future finished The Future's result is set to res.

Make

@ByVal
public static TableFuture Make()

\brief Producer API: instantiate a valid Future The Future's state is initialized with PENDING. If you are creating a future with this method you must ensure that future is eventually completed (with success or failure). Creating a future, returning it, and never completing the future can lead to memory leaks (for example, see Loop).

MakeFinished

@ByVal
public static TableFuture MakeFinished(@ByVal
                                              TableResult res)

\brief Producer API: instantiate a finished Future