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	ExpressionResult.multiply()
Expression	UnaryExpression.operand()
Expression	Source.partition_expression() \brief An expression which evaluates to true for all data viewed by this Source.
Expression	Fragment.partition_expression() \brief An expression which evaluates to true for all data viewed by this Fragment.
Expression	ExpressionVector.pop_back()
Expression	BinaryExpression.right_operand()
Expression	SourceFactory.root_partition() \brief Optional root partition for the resulting Source.
Expression	ExpressionResult.ValueOrDie() Gets a mutable reference to the stored T value.

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.
ExpressionVector.Iterator	ExpressionVector.insert(ExpressionVector.Iterator pos, Expression value)
static SourceResult	FileSystemSource.Make(Schema schema, Expression root_partition, FileFormat format, FileSystem filesystem, FileStatsVector stats) \brief Create a FileSystemSource.
static SourceResult	FileSystemSource.Make(Schema schema, Expression root_partition, FileFormat format, FileSystem filesystem, FileStatsVector stats, ExpressionVector partitions) \brief Create a FileSystemSource with file-level partitions.
static SourceResult	FileSystemSource.Make(Schema schema, Expression root_partition, FileFormat format, FileSystem filesystem, PathForest forest, ExpressionVector partitions) \brief Create a FileSystemSource with file-level partitions.
ExpressionVector	ExpressionVector.push_back(Expression value)
ExpressionVector	ExpressionVector.put(Expression... array)
ExpressionVector	ExpressionVector.put(Expression value)
ExpressionVector	ExpressionVector.put(long i, Expression value)
Status	SourceFactory.SetRootPartition(Expression partition)

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(int op, Expression left_operand, Expression right_operand)
ExpressionResult(Expression value) Constructs a Result object that contains value.
ExpressionVector(Expression... array)
ExpressionVector(Expression value)
InExpression(Expression operand, Array set)

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_(ExpressionVector subexpressions)
static Expression	arrow_dataset.or_(ExpressionVector subexpressions)

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

Modifier and Type	Method and Description
static AndExpression	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 NotExpression	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 OrExpression	arrow_dataset.or_(Expression lhs, Expression rhs)
static OrExpression	arrow_dataset.or(Expression lhs, Expression rhs)