Package io.substrait.expression.proto

Class ExpressionProtoConverter

java.lang.Object

io.substrait.expression.proto.ExpressionProtoConverter

All Implemented Interfaces:

ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

public class ExpressionProtoConverter
extends Object
implements ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Converts from Expression to Expression

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ExpressionProtoConverter.BoundConverter

Field Summary

Fields

Modifier and Type	Field	Description
protected final ExtensionCollector	extensionCollector
protected final RelProtoConverter	relProtoConverter
protected final TypeProtoConverter	typeProtoConverter

Constructor Summary

Constructors

Constructor	Description
ExpressionProtoConverter(ExtensionCollector extensionCollector, RelProtoConverter relProtoConverter)

Method Summary

Modifier and Type	Method	Description
static FunctionOption	from(FunctionOption option)
RelProtoConverter	getRelProtoConverter()
TypeProtoConverter	getTypeProtoConverter()
Expression	toProto(Expression expression)
protected Rel	toProto(Rel rel)
protected Type	toProto(Type type)
List<Expression>	toProto(List<Expression> expressions)
Expression	visit(Expression.BinaryLiteral expr, EmptyVisitationContext context)	Visit a binary literal.
Expression	visit(Expression.BoolLiteral expr, EmptyVisitationContext context)	Visit a boolean literal.
Expression	visit(Expression.Cast expr, EmptyVisitationContext context)	Visit a cast.
Expression	visit(Expression.DateLiteral expr, EmptyVisitationContext context)	Visit a date literal.
Expression	visit(Expression.DecimalLiteral expr, EmptyVisitationContext context)	Visit a decimal literal.
Expression	visit(Expression.EmptyListLiteral expr, EmptyVisitationContext context)	Visit an empty list literal.
Expression	visit(Expression.EmptyMapLiteral expr, EmptyVisitationContext context)	Visit an empty map literal.
Expression	visit(Expression.FixedBinaryLiteral expr, EmptyVisitationContext context)	Visit a fixed-length binary literal.
Expression	visit(Expression.FixedCharLiteral expr, EmptyVisitationContext context)	Visit a fixed-length char literal.
Expression	visit(Expression.FP32Literal expr, EmptyVisitationContext context)	Visit a 32-bit floating-point literal.
Expression	visit(Expression.FP64Literal expr, EmptyVisitationContext context)	Visit a 64-bit floating-point literal.
Expression	visit(Expression.I16Literal expr, EmptyVisitationContext context)	Visit a 16-bit integer literal.
Expression	visit(Expression.I32Literal expr, EmptyVisitationContext context)	Visit a 32-bit integer literal.
Expression	visit(Expression.I64Literal expr, EmptyVisitationContext context)	Visit a 64-bit integer literal.
Expression	visit(Expression.I8Literal expr, EmptyVisitationContext context)	Visit an 8-bit integer literal.
Expression	visit(Expression.IfThen expr, EmptyVisitationContext context)	Visit an if-then expression.
Expression	visit(Expression.InPredicate expr, EmptyVisitationContext context)	Visit an IN predicate.
Expression	visit(Expression.IntervalCompoundLiteral expr, EmptyVisitationContext context)	Visit a compound interval literal.
Expression	visit(Expression.IntervalDayLiteral expr, EmptyVisitationContext context)	Visit a day/time interval literal.
Expression	visit(Expression.IntervalYearLiteral expr, EmptyVisitationContext context)	Visit a year/month interval literal.
Expression	visit(Expression.Lambda expr, EmptyVisitationContext context)	Visit a Lambda expression.
Expression	visit(Expression.ListLiteral expr, EmptyVisitationContext context)	Visit a list literal.
Expression	visit(Expression.MapLiteral expr, EmptyVisitationContext context)	Visit a map literal.
Expression	visit(Expression.MultiOrList expr, EmptyVisitationContext context)	Visit a multi-or-list expression.
Expression	visit(Expression.NestedList expr, EmptyVisitationContext context)	Visit a nested list.
Expression	visit(Expression.NestedStruct expr, EmptyVisitationContext context)	Visit a nested struct.
Expression	visit(Expression.NullLiteral expr, EmptyVisitationContext context)	Visit a NULL literal.
Expression	visit(Expression.PrecisionTimeLiteral expr, EmptyVisitationContext context)	Visit a precision time literal.
Expression	visit(Expression.PrecisionTimestampLiteral expr, EmptyVisitationContext context)	Visit a precision timestamp literal.
Expression	visit(Expression.PrecisionTimestampTZLiteral expr, EmptyVisitationContext context)	Visit a precision timestamp-with-timezone literal.
Expression	visit(Expression.ScalarFunctionInvocation expr, EmptyVisitationContext context)	Visit a scalar function invocation.
Expression	visit(Expression.ScalarSubquery expr, EmptyVisitationContext context)	Visit a scalar subquery.
Expression	visit(Expression.SetPredicate expr, EmptyVisitationContext context)	Visit a set predicate.
Expression	visit(Expression.SingleOrList expr, EmptyVisitationContext context)	Visit a single-or-list expression.
Expression	visit(Expression.StrLiteral expr, EmptyVisitationContext context)	Visit a string literal.
Expression	visit(Expression.StructLiteral expr, EmptyVisitationContext context)	Visit a struct literal.
Expression	visit(Expression.Switch expr, EmptyVisitationContext context)	Visit a switch expression.
Expression	visit(Expression.TimeLiteral expr, EmptyVisitationContext context)	Visit a time literal.
Expression	visit(Expression.TimestampLiteral expr, EmptyVisitationContext context)	Visit a timestamp literal.
Expression	visit(Expression.TimestampTZLiteral expr, EmptyVisitationContext context)	Visit a timestamp-with-timezone literal.
Expression	visit(Expression.UserDefinedAnyLiteral expr, EmptyVisitationContext context)	Visit a user-defined any literal.
Expression	visit(Expression.UserDefinedStructLiteral expr, EmptyVisitationContext context)	Visit a user-defined struct literal.
Expression	visit(Expression.UUIDLiteral expr, EmptyVisitationContext context)	Visit a UUID literal.
Expression	visit(Expression.VarCharLiteral expr, EmptyVisitationContext context)	Visit a variable-length char literal.
Expression	visit(Expression.WindowFunctionInvocation expr, EmptyVisitationContext context)	Visit a window function invocation.
Expression	visit(FieldReference expr, EmptyVisitationContext context)	Visit a field reference.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

relProtoConverter

protected final RelProtoConverter relProtoConverter

typeProtoConverter

protected final TypeProtoConverter typeProtoConverter

extensionCollector

protected final ExtensionCollector extensionCollector

Constructor Details

ExpressionProtoConverter

public ExpressionProtoConverter(ExtensionCollector extensionCollector,
 RelProtoConverter relProtoConverter)

Method Details

getRelProtoConverter

public RelProtoConverter getRelProtoConverter()

getTypeProtoConverter

public TypeProtoConverter getTypeProtoConverter()

toProto

public Expression toProto(Expression expression)

toProto

public List<Expression> toProto(List<Expression> expressions)

toProto

protected Rel toProto(Rel rel)

toProto

protected Type toProto(Type type)

visit

public Expression visit(Expression.NullLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a NULL literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the NULL literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.BoolLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a boolean literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the boolean literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.I8Literal expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit an 8-bit integer literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the i8 literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.I16Literal expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a 16-bit integer literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the i16 literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.I32Literal expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a 32-bit integer literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the i32 literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.I64Literal expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a 64-bit integer literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the i64 literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.FP32Literal expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a 32-bit floating-point literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the fp32 literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.FP64Literal expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a 64-bit floating-point literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the fp64 literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.StrLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a string literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the string literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.BinaryLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a binary literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the binary literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.TimeLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a time literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the time literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.PrecisionTimeLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a precision time literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the precision time literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.DateLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a date literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the date literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.TimestampLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a timestamp literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the timestamp literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.TimestampTZLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a timestamp-with-timezone literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the timestamp TZ literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.PrecisionTimestampLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a precision timestamp literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the precision timestamp literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.PrecisionTimestampTZLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a precision timestamp-with-timezone literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the precision timestamp TZ literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.IntervalYearLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a year/month interval literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the interval (year) literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.IntervalDayLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a day/time interval literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the interval (day) literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.IntervalCompoundLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a compound interval literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the compound interval literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.UUIDLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a UUID literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the UUID literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.FixedCharLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a fixed-length char literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the fixed char literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.VarCharLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a variable-length char literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the varchar literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.FixedBinaryLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a fixed-length binary literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the fixed binary literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.DecimalLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a decimal literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the decimal literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.MapLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a map literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the map literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.EmptyMapLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit an empty map literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the empty map literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.ListLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a list literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the list literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.EmptyListLiteral expr,
 EmptyVisitationContext context)
                 throws RuntimeException

Description copied from interface: ExpressionVisitor

Visit an empty list literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the empty list literal

context - visitation context

Returns:

visit result

Throws:

RuntimeException

visit

public Expression visit(Expression.StructLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a struct literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the struct literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.NestedStruct expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a nested struct.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the nested struct

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.Lambda expr,
 EmptyVisitationContext context)
                 throws RuntimeException

Description copied from interface: ExpressionVisitor

Visit a Lambda expression.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the Lambda expression

context - visitation context

Returns:

visit result

Throws:

RuntimeException

visit

public Expression visit(Expression.UserDefinedAnyLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a user-defined any literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the user-defined literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.UserDefinedStructLiteral expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a user-defined struct literal.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the user-defined literal

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.Switch expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a switch expression.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the switch expression

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.IfThen expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit an if-then expression.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the if-then expression

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.ScalarFunctionInvocation expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a scalar function invocation.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the scalar function invocation

context - visitation context

Returns:

visit result

from

public static FunctionOption from(FunctionOption option)

visit

public Expression visit(Expression.Cast expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a cast.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the cast expression

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.SingleOrList expr,
 EmptyVisitationContext context)
                 throws RuntimeException

Description copied from interface: ExpressionVisitor

Visit a single-or-list expression.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the single-or-list expression

context - visitation context

Returns:

visit result

Throws:

RuntimeException

visit

public Expression visit(Expression.MultiOrList expr,
 EmptyVisitationContext context)
                 throws RuntimeException

Description copied from interface: ExpressionVisitor

Visit a multi-or-list expression.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the multi-or-list expression

context - visitation context

Returns:

visit result

Throws:

RuntimeException

visit

public Expression visit(Expression.NestedList expr,
 EmptyVisitationContext context)
                 throws RuntimeException

Description copied from interface: ExpressionVisitor

Visit a nested list.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the nested list

context - visitation context

Returns:

visit result

Throws:

RuntimeException

visit

public Expression visit(FieldReference expr,
 EmptyVisitationContext context)

Description copied from interface: ExpressionVisitor

Visit a field reference.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the field reference

context - visitation context

Returns:

visit result

visit

public Expression visit(Expression.SetPredicate expr,
 EmptyVisitationContext context)
                 throws RuntimeException

Description copied from interface: ExpressionVisitor

Visit a set predicate.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the set predicate

context - visitation context

Returns:

visit result

Throws:

RuntimeException

visit

public Expression visit(Expression.ScalarSubquery expr,
 EmptyVisitationContext context)
                 throws RuntimeException

Description copied from interface: ExpressionVisitor

Visit a scalar subquery.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the scalar subquery

context - visitation context

Returns:

visit result

Throws:

RuntimeException

visit

public Expression visit(Expression.InPredicate expr,
 EmptyVisitationContext context)
                 throws RuntimeException

Description copied from interface: ExpressionVisitor

Visit an IN predicate.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the IN predicate

context - visitation context

Returns:

visit result

Throws:

RuntimeException

visit

public Expression visit(Expression.WindowFunctionInvocation expr,
 EmptyVisitationContext context)
                 throws RuntimeException

Description copied from interface: ExpressionVisitor

Visit a window function invocation.

Specified by:

visit in interface ExpressionVisitor<Expression,EmptyVisitationContext,RuntimeException>

Parameters:

expr - the window function invocation

context - visitation context

Returns:

visit result

Throws:

RuntimeException