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

Subclasses of Expression in org.bytedeco.arrow_dataset

Modifier and Type	Class and Description
class	AndExpression
class	AndExpressionImpl
class	BinaryExpression Base class for an expression with exactly two operands
class	CastExpression Explicitly cast an expression to a different type
class	CastExpressionImpl Helper class which implements Copy and forwards construction
class	ComparisonExpression
class	ComparisonExpressionImpl
class	CustomExpression
class	FieldExpression Represents a reference to a field.
class	InExpression
class	InExpressionImpl
class	IsValidExpression
class	IsValidExpressionImpl
class	NotExpression
class	NotExpressionImpl
class	OrExpression
class	OrExpressionImpl
class	ScalarExpression Represents a scalar value; thin wrapper around arrow::Scalar
class	UnaryExpression Base class for an expression with exactly one operand

Methods in org.bytedeco.arrow_dataset that return Expression

Modifier and Type	Method and Description
Expression	OrExpression.Assume(Expression given)
Expression	NotExpression.Assume(Expression given)
Expression	IsValidExpression.Assume(Expression given)
Expression	InExpression.Assume(Expression given)
Expression	Expression.Assume(Expression given) \brief Simplify to an equivalent Expression given assumed constraints on input.
Expression	ComparisonExpression.Assume(Expression given)
Expression	CastExpression.Assume(Expression given)
Expression	AndExpression.Assume(Expression given)
Expression	ScalarExpression.Copy()
Expression	OrExpressionImpl.Copy()
Expression	NotExpressionImpl.Copy()
Expression	IsValidExpressionImpl.Copy()
Expression	InExpressionImpl.Copy()
Expression	FieldExpression.Copy()
Expression	Expression.Copy() Copy this expression into a shared pointer.
Expression	ComparisonExpressionImpl.Copy()
Expression	CastExpressionImpl.Copy()
Expression	AndExpressionImpl.Copy()
Expression	ScanOptions.filter()
Expression[]	ExpressionVector.get()
Expression	ExpressionVector.Iterator.get()
Expression	ExpressionVector.get(long i)
Expression	BinaryExpression.left_operand()
Expression	CastExpression.like_expr() Return the target expression of this CastLike expression, or nullptr if this is a CastTo expression.
Expression	ExpressionResult.MoveValueUnsafe()
Expression	ExpressionResult.multiply()
Expression	UnaryExpression.operand()
Expression	WritePlan.FragmentOrPartitionExpression.partition_expr()
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	BinaryExpression.right_operand()
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() Apply a function to 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
Expression	OrExpression.Assume(Expression given)
Expression	NotExpression.Assume(Expression given)
Expression	IsValidExpression.Assume(Expression given)
Expression	InExpression.Assume(Expression given)
Expression	Expression.Assume(Expression given) \brief Simplify to an equivalent Expression given assumed constraints on input.
Expression	ComparisonExpression.Assume(Expression given)
Expression	CastExpression.Assume(Expression given)
Expression	AndExpression.Assume(Expression given)
CastExpression	Expression.CastLike(Expression expr)
CastExpression	Expression.CastLike(Expression expr, CastOptions options)
boolean	UnaryExpression.Equals(Expression other)
boolean	ScalarExpression.Equals(Expression other)
boolean	FieldExpression.Equals(Expression other)
boolean	Expression.Equals(Expression other) Returns true iff the expressions are identical; does not check for equivalence.
boolean	ComparisonExpression.Equals(Expression other)
boolean	BinaryExpression.Equals(Expression other)
DatumResult	ExpressionEvaluator.Evaluate(Expression expr, RecordBatch batch)
DatumResult	TreeEvaluator.Evaluate(Expression expr, RecordBatch batch, MemoryPool pool)
DatumResult	ExpressionEvaluator.Evaluate(Expression expr, RecordBatch batch, MemoryPool pool) Evaluate expr against each row of a RecordBatch.
ScanOptions	ScanOptions.filter(Expression setter)
Status	ScannerBuilder.Filter(Expression filter) \brief Set the filter expression to return only rows matching the filter.
RecordBatchIterator	ExpressionEvaluator.FilterBatches(RecordBatchIterator unfiltered, Expression filter)
RecordBatchIterator	ExpressionEvaluator.FilterBatches(RecordBatchIterator unfiltered, Expression filter, MemoryPool pool) \brief Wrap an iterator of record batches with a filter expression.
FragmentIterator	Dataset.GetFragments(Expression predicate) \brief GetFragments returns an iterator of Fragments given a predicate.
ExpressionVector.Iterator	ExpressionVector.insert(ExpressionVector.Iterator pos, Expression value)
boolean	Expression.IsSatisfiableWith(Expression other) Indicates if the expression is satisfiable given an other expression.
static FileSystemDatasetResult	FileSystemDataset.Make(Schema schema, Expression root_partition, FileFormat format, FileFragmentVector fragments) \brief Create a FileSystemDataset.
FileFragmentResult	FileFormat.MakeFragment(FileSource source, Expression partition_expression)
FileFragmentResult	ParquetFileFormat.MakeFragment(FileSource source, Expression partition_expression, RowGroupInfo row_groups)
FileFragmentResult	ParquetFileFormat.MakeFragment(FileSource source, Expression partition_expression, RowGroupInfo row_groups, Schema physical_schema) \brief Create a Fragment, restricted to the specified row groups.
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
ExpressionVector	ExpressionVector.push_back(Expression value)
ExpressionVector	ExpressionVector.put(Expression... array)
ExpressionVector	ExpressionVector.put(Expression value)
ExpressionVector	ExpressionVector.put(long i, Expression value)
boolean	RowGroupInfo.Satisfy(Expression predicate) \brief Indicate if the RowGroup's statistics satisfy the predicate.
Status	DatasetFactory.SetRootPartition(Expression partition)
FragmentResult	ParquetFileFragment.SplitByRowGroup(Expression predicate)

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

Constructor and Description
CastExpression(Expression operand, DataType to, CastOptions options)
CastExpression(Expression operand, Expression like, CastOptions options) The operand will be cast to whatever type like would evaluate to, given the same schema.
ComparisonExpression(arrow.CompareOperator op, Expression left_operand, Expression right_operand)
ComparisonExpression(byte op, Expression left_operand, Expression right_operand)
ExpressionResult(Expression value) Constructs a Result object that contains value.
ExpressionVector(Expression... array)
ExpressionVector(Expression value)
FragmentOrPartitionExpression(Expression partition_expr)
InExpression(Expression operand, Array set)
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 lhs, Expression rhs)
static Expression	arrow_dataset.and_(ExpressionVector subexpressions)
static Expression	arrow_dataset.field_ref(BytePointer name)
static Expression	arrow_dataset.field_ref(String name)
static Expression	arrow_dataset.not_(Expression operand)
static Expression	arrow_dataset.or_(Expression lhs, Expression rhs)
static Expression	arrow_dataset.or_(ExpressionVector subexpressions)
static Expression	arrow_dataset.scalar(boolean arg0) forward declared to facilitate scalar(true) as a default for Expression parameters
static Expression	arrow_dataset.scalar(Scalar value)

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

Modifier and Type	Method and Description
static Expression	arrow_dataset.and_(Expression lhs, Expression rhs)
static AndExpression	arrow_dataset.and(Expression lhs, Expression rhs)
static ComparisonExpression	arrow_dataset.equal(Expression lhs, Expression rhs)
static ComparisonExpression	arrow_dataset.equals(Expression lhs, Expression rhs)
static StringVector	arrow_dataset.FieldsInExpression(Expression expr) \brief Returns field names referenced in the expression.
static ComparisonExpression	arrow_dataset.greater_equal(Expression lhs, Expression rhs)
static ComparisonExpression	arrow_dataset.greater(Expression lhs, Expression rhs)
static ComparisonExpression	arrow_dataset.greaterThan(Expression lhs, Expression rhs)
static ComparisonExpression	arrow_dataset.greaterThanEquals(Expression lhs, Expression rhs)
static ExpressionResult	arrow_dataset.InsertImplicitCasts(Expression expr, Schema schema) \brief Insert CastExpressions where necessary to make a valid expression.
static ComparisonExpression	arrow_dataset.less_equal(Expression lhs, Expression rhs)
static ComparisonExpression	arrow_dataset.less(Expression lhs, Expression rhs)
static ComparisonExpression	arrow_dataset.lessThan(Expression lhs, Expression rhs)
static ComparisonExpression	arrow_dataset.lessThanEquals(Expression lhs, Expression rhs)
static Expression	arrow_dataset.not_(Expression operand)
static ComparisonExpression	arrow_dataset.not_equal(Expression lhs, Expression rhs)
static NotExpression	arrow_dataset.not(Expression rhs)
static ComparisonExpression	arrow_dataset.notEquals(Expression lhs, Expression rhs)
static Expression	arrow_dataset.or_(Expression lhs, Expression rhs)
static OrExpression	arrow_dataset.or(Expression lhs, Expression rhs)
static Status	arrow_dataset.VisitConjunctionMembers(Expression expr, arrow_dataset.ExpressionVisitor visitor) \brief Visit each subexpression of an arbitrarily nested conjunction.