Package org.bytedeco.arrow_dataset

Class Summary

Class	Description
AndExpression
AndExpressionImpl
BinaryExpression	Base class for an expression with exactly two operands
CastExpression	Explicitly cast an expression to a different type
CastExpressionImpl	Helper class which implements Copy and forwards construction
ComparisonExpression
ComparisonExpressionImpl
CustomExpression
Dataset	\brief Top-level interface for a Dataset with fragments coming from possibly multiple sources.
DatasetFactory	\brief DatasetFactory provides a way to inspect/discover a Dataset's expected schema before materializing the Dataset and underlying Sources.
DatasetFactoryResult
DatasetResult	A Result object either contains a value of type T or a Status object explaining why such a value is not present.
Expression	Represents an expression tree
ExpressionEvaluator	Interface for evaluation of expressions against record batches.
ExpressionResult
ExpressionType
ExpressionVector
ExpressionVector.Iterator
FieldExpression	Represents a reference to a field.
FieldReferenceExpression
FileFormat	\brief Base class for file format implementation
FileFragment	\brief A Fragment that is stored in a file with a known format
FileSource	\brief The path and filesystem where an actual file is located or a buffer which can be read like a file
FileSystemFactoryOptions
FileSystemSource	\brief A Source of FileFragments.
FileSystemSourceFactory	\brief FileSystemSourceFactory creates a Source from a vector of fs::FileStats or a fs::FileSelector.
Filter
FilterIterator	\brief Like MapIterator, but where the function can fail.
Fragment	\brief A granular piece of a Dataset, such as an individual file, which can be read/scanned separately from other fragments.
FragmentResult
InExpression
InExpressionImpl
InMemoryFragment	\brief A trivial Fragment that yields ScanTask out of a fixed set of RecordBatch.
InMemoryScanTask	\brief A trivial ScanTask that yields the RecordBatch of an array.
InMemorySource	\brief A Source consisting of a flat sequence of Fragments
IpcFileFormat	\brief A FileFormat implementation that reads from Ipc files
IpcFragment
IsValidExpression
IsValidExpressionImpl
NotExpression
NotExpressionImpl
OrExpression
OrExpressionImpl
ParquetFileFormat	\brief A FileFormat implementation that reads from Parquet files
ParquetFragment
Partitioning
PartitioningFactory
PartitioningOrFactory
ReadaheadPromise
ReadaheadQueue
RecordBatchProjector
ScalarExpression	Represents a scalar value; thin wrapper around arrow::Scalar
ScanContext	\brief Shared state for a Scan operation
Scanner	\brief Scanner is a materialized scan operation with context and options bound.
ScannerBuilder	\brief ScannerBuilder is a factory class to construct a Scanner.
ScannerBuilderResult
ScannerResult
ScanOptions
ScanTask	\brief Read record batches from a range of a single data fragment.
ScanTaskIterator	\brief A generic Iterator that can return errors
ScanTaskIterator.RangeIterator
ScanTaskIteratorResult
ScanTaskResult
Source	\brief A basic component of a Dataset which yields zero or more Fragments.
SourceFactory	\brief SourceFactory provides a way to inspect/discover a Source's expected schema before materializing said Source.
SourceFactoryResult
SourceFactoryVector
SourceFactoryVector.Iterator
SourceResult
TaskGroup
ThreadPool
ThreadPool.State
ThreadPoolResult
TreeEvaluator	construct an Evaluator which uses compute kernels to evaluate expressions and filter record batches in depth first order
TreeSource	\brief A recursive Source with child Sources.
UnaryExpression	Base class for an expression with exactly one operand

Enum Summary

Enum	Description
ExpressionType.type
FileSource.SourceType
FilterIterator.Action