Uses of Class
org.bytedeco.arrow_dataset.Expression

Packages that use Expression

Package	Description
org.bytedeco.arrow_dataset
org.bytedeco.arrow.global

Uses of Expression in org.bytedeco.arrow_dataset

Methods in org.bytedeco.arrow_dataset that return Expression

Modifier and Type	Method and Description
Expression	Expression.Call.arguments()
Expression	Partitioning.PartitionedBatches.expressions()
Expression	ScanOptions.filter()
Expression[]	ExpressionVector.get()
Expression	ExpressionVector.Iterator.get()
Expression	ExpressionVector.get(long i)
Expression	Expression.getPointer(long i)
Expression	ExpressionResult.MoveValueUnsafe()
Expression	ExpressionResult.multiply()
Expression	Fragment.partition_expression() \brief An expression which evaluates to true for all data viewed by this Fragment.
Expression	Dataset.partition_expression() \brief An expression which evaluates to true for all data viewed by this Dataset.
Expression	ExpressionVector.pop_back()
Expression	Expression.position(long position)
Expression	DatasetFactory.root_partition() \brief Optional root partition for the resulting Dataset.
Expression	ExpressionResult.ValueOrDie() Gets a mutable reference to the stored T value.
Expression	ExpressionResult.ValueUnsafe() Cast the internally stored value to produce a new result or propagate the stored error.

Methods in org.bytedeco.arrow_dataset with parameters of type Expression

Modifier and Type	Method and Description
long	Expression.Hash.apply(Expression expr)
Expression.Call	Expression.Call.arguments(Expression setter)
boolean	Expression.Equals(Expression other)
Partitioning.PartitionedBatches	Partitioning.PartitionedBatches.expressions(Expression setter)
ScanOptions	ScanOptions.filter(Expression setter)
Status	ScannerBuilder.Filter(Expression filter) \brief Set the filter expression to return only rows matching the filter.
StringResult	Partitioning.Format(Expression expr)
StringResult	KeyValuePartitioning.Format(Expression expr)
StringResult	FunctionPartitioning.Format(Expression expr)
FragmentIteratorResult	Dataset.GetFragments(Expression predicate) \brief GetFragments returns an iterator of Fragments given a predicate.
ExpressionVector.Iterator	ExpressionVector.insert(ExpressionVector.Iterator pos, Expression value)
static FileSystemDatasetResult	FileSystemDataset.Make(Schema schema, Expression root_partition, FileFormat format, FileSystem filesystem, FileFragmentVector fragments) \brief Create a FileSystemDataset.
FileFragmentResult	FileFormat.MakeFragment(FileSource source, Expression partition_expression)
FileFragmentResult	ParquetFileFormat.MakeFragment(FileSource source, Expression partition_expression, Schema physical_schema) \brief Create a Fragment targeting all RowGroups.
FileFragmentResult	FileFormat.MakeFragment(FileSource source, Expression partition_expression, Schema physical_schema) \brief Open a fragment
ParquetFileFragmentResult	ParquetFileFormat.MakeFragment(FileSource source, Expression partition_expression, Schema physical_schema, int[] row_groups)
ParquetFileFragmentResult	ParquetFileFormat.MakeFragment(FileSource source, Expression partition_expression, Schema physical_schema, IntBuffer row_groups)
ParquetFileFragmentResult	ParquetFileFormat.MakeFragment(FileSource source, Expression partition_expression, Schema physical_schema, IntPointer row_groups) \brief Create a Fragment, restricted to the specified row groups.
ExpressionVector	ExpressionVector.push_back(Expression value)
ExpressionVector	ExpressionVector.put(Expression... array)
ExpressionVector	ExpressionVector.put(Expression value)
ExpressionVector	ExpressionVector.put(long i, Expression value)
static Status	KeyValuePartitioning.SetDefaultValuesFromKeys(Expression expr, RecordBatchProjector projector)
Status	DatasetFactory.SetRootPartition(Expression partition)
FragmentResult	ParquetFileFragment.SplitByRowGroup(Expression predicate)
FragmentResult	ParquetFileFragment.Subset(Expression predicate) \brief Return fragment which selects a filtered subset of this fragment's RowGroups.

Constructors in org.bytedeco.arrow_dataset with parameters of type Expression

Constructor and Description
ExpressionResult(Expression value) Constructs a Result object that contains value.
ExpressionVector(Expression... array)
ExpressionVector(Expression value)
InMemoryFragment(RecordBatchVector record_batches, Expression arg1)
InMemoryFragment(Schema schema, RecordBatchVector record_batches, Expression arg2)

Uses of Expression in org.bytedeco.arrow.global

Methods in org.bytedeco.arrow.global that return Expression

Modifier and Type	Method and Description
static Expression	arrow_dataset.and_(Expression arg0)
static Expression	arrow_dataset.and_(Expression lhs, Expression rhs)
static Expression	arrow_dataset.call(BytePointer function, Expression arguments)
static Expression	arrow_dataset.call(BytePointer function, Expression arguments, FunctionOptions options)
static Expression	arrow_dataset.call(String function, Expression arguments)
static Expression	arrow_dataset.call(String function, Expression arguments, FunctionOptions options)
static Expression	arrow_dataset.equal(Expression lhs, Expression rhs)
static Expression	arrow_dataset.field_ref(FieldRef ref)
static Expression	arrow_dataset.greater_equal(Expression lhs, Expression rhs)
static Expression	arrow_dataset.greater(Expression lhs, Expression rhs)
static Expression	arrow_dataset.less_equal(Expression lhs, Expression rhs)
static Expression	arrow_dataset.less(Expression lhs, Expression rhs)
static Expression	arrow_dataset.literal(Datum lit)
static Expression	arrow_dataset.not_(Expression operand)
static Expression	arrow_dataset.not_equal(Expression lhs, Expression rhs)
static Expression	arrow_dataset.or_(Expression arg0)
static Expression	arrow_dataset.or_(Expression lhs, Expression rhs)
static Expression	arrow_dataset.project(Expression values, StringVector names)

Methods in org.bytedeco.arrow.global with parameters of type Expression

Modifier and Type	Method and Description
static Expression	arrow_dataset.and_(Expression arg0)
static Expression	arrow_dataset.and_(Expression lhs, Expression rhs)
static Expression	arrow_dataset.call(BytePointer function, Expression arguments)
static Expression	arrow_dataset.call(BytePointer function, Expression arguments, FunctionOptions options)
static Expression	arrow_dataset.call(String function, Expression arguments)
static Expression	arrow_dataset.call(String function, Expression arguments, FunctionOptions options)
static ExpressionResult	arrow_dataset.Canonicalize(Expression arg0)
static ExpressionResult	arrow_dataset.Canonicalize(Expression arg0, ExecContext arg1) \defgroup expression-passes Functions for modification of Expressions \{ These transform bound expressions.
static Expression	arrow_dataset.equal(Expression lhs, Expression rhs)
static boolean	arrow_dataset.equals(Expression l, Expression r) \brief Execute an expression that returns a Result, extracting its value into the variable defined by lhs (or returning a Status on error).
static DatumResult	arrow_dataset.ExecuteScalarExpression(Expression arg0, Datum input)
static DatumResult	arrow_dataset.ExecuteScalarExpression(Expression arg0, Datum input, ExecContext arg2) Execute a scalar expression against the provided state and input Datum.
static FieldRefDatumMapResult	arrow_dataset.ExtractKnownFieldValues(Expression guaranteed_true_predicate) Assemble a mapping from field references to known values.
static FieldRef	arrow_dataset.FieldsInExpression(Expression arg0) Assemble a list of all fields referenced by an Expression at any depth.
static ExpressionResult	arrow_dataset.FoldConstants(Expression arg0) Simplify Expressions based on literal arguments (for example, add(null, x) will always be null so replace the call with a null literal).
static Expression	arrow_dataset.greater_equal(Expression lhs, Expression rhs)
static Expression	arrow_dataset.greater(Expression lhs, Expression rhs)
static Expression	arrow_dataset.less_equal(Expression lhs, Expression rhs)
static Expression	arrow_dataset.less(Expression lhs, Expression rhs)
static Expression	arrow_dataset.not_(Expression operand)
static Expression	arrow_dataset.not_equal(Expression lhs, Expression rhs)
static boolean	arrow_dataset.notEquals(Expression l, Expression r)
static Expression	arrow_dataset.or_(Expression arg0)
static Expression	arrow_dataset.or_(Expression lhs, Expression rhs)
static Expression	arrow_dataset.project(Expression values, StringVector names)
static ExpressionResult	arrow_dataset.ReplaceFieldsWithKnownValues(FieldRefDatumMap known_values, Expression arg1) Simplify Expressions by replacing with known values of the fields which it references.
static BufferResult	arrow_dataset.Serialize(Expression arg0)
static ExpressionResult	arrow_dataset.SimplifyWithGuarantee(Expression arg0, Expression guaranteed_true_predicate) Simplify an expression by replacing subexpressions based on a guarantee: a boolean expression which is guaranteed to evaluate to true.