Package org.eigenbase.sql.type

SQL type system.

See:
Description

Interface Summary

SqlOperandTypeChecker	Strategy interface to check for allowed operand types of an operator call.
SqlOperandTypeInference	Strategy to infer unknown types of the operands of an operator call.
SqlReturnTypeInference	Strategy interface to infer the type of an operator call from the type of the operands.
SqlSingleOperandTypeChecker	SqlSingleOperandTypeChecker is an extension of SqlOperandTypeChecker for implementations which are cabable of checking the type of a single operand in isolation.
SqlTypeName.PrecScale	Flags indicating precision/scale combinations.
SqlTypeTransform	Strategy to transform one type to another.

Class Summary

AbstractSqlType	Abstract base class for SQL implementations of RelDataType.
AssignableOperandTypeChecker	AssignableOperandTypeChecker implements SqlOperandTypeChecker by verifying that the type of each argument is assignable to a predefined set of parameter types (under the SQL definition of "assignable").
BasicSqlType	BasicSqlType represents a standard atomic SQL type (excluding interval types).
ComparableOperandTypeChecker	Type checking strategy which verifies that types have the required attributes to be used as arguments to comparison operators.
CompositeOperandTypeChecker	This class allows multiple existing SqlOperandTypeChecker rules to be combined into one rule.
CursorReturnTypeInference	Returns the rowtype of a cursor of the operand at a particular 0-based ordinal position.
ExplicitOperandTypeInference	ExplicitOperandTypeInferences implements SqlOperandTypeInference by explicity supplying a type for each parameter.
ExplicitReturnTypeInference	A SqlReturnTypeInference which always returns the same SQL type.
FamilyOperandTypeChecker	Operand type-checking strategy which checks operands for inclusion in type families.
IntervalSqlType	IntervalSqlType represents a standard SQL datetime interval type.
JavaToSqlTypeConversionRules	JavaToSqlTypeConversionRules defines mappings from common Java types to corresponding SQL types.
LiteralOperandTypeChecker	Parameter type-checking strategy type must be a literal (whether null is allowede is determined by the constructor).
MatchReturnTypeInference	Returns the first type that matches a set of given SqlTypeNames.
MultisetOperandTypeChecker	Parameter type-checking strategy types must be [nullable] Multiset, [nullable] Multiset and the two types must have the same element type
MultisetSqlType	MultisetSqlType represents a standard SQL2003 multiset type.
ObjectSqlType	ObjectSqlType represents an SQL structured user-defined type.
OperandsTypeChecking	Strategies to check for allowed operand types of an operator call.
OrdinalReturnTypeInference	Returns the type of the operand at a particular 0-based ordinal position.
SameOperandTypeChecker	Parameter type-checking strategy where all operand types must be the same.
SetopOperandTypeChecker	Parameter type-checking strategy for a set operator (UNION, INTERSECT, EXCEPT).
SqlReturnTypeInferenceChain	Strategy to infer the type of an operator call from the type of the operands by using a series of SqlReturnTypeInference rules in a given order.
SqlTypeAssignmentRules	Class to hold rules to determine if a type is assignable from another type.
SqlTypeExplicitPrecedenceList	SqlTypeExplicitPrecedenceList implements the RelDataTypePrecedenceList interface via an explicit list of SqlTypeName entries.
SqlTypeFactoryImpl	SqlTypeFactoryImpl provides a default implementation of RelDataTypeFactory which supports SQL types.
SqlTypeStrategies	SqlTypeStrategies defines singleton instances of strategy objects for operand type checking (member prefix otc), operand type inference (member prefix oti), and operator return type inference (member prefix rti).
SqlTypeTransformCascade	Strategy to infer the type of an operator call from the type of the operands by using one SqlReturnTypeInference rule and a combination of SqlTypeTransforms
SqlTypeTransforms	SqlTypeTransforms defines a number of reusable instances of SqlTypeTransform.
SqlTypeUtil	Contains utility methods used during SQL validation or type derivation.
SqlTypeUtil.TypeBuilder	Convenience class for building a struct type with several fields.
TableFunctionReturnTypeInference	TableFunctionReturnTypeInference implements rules for deriving table function output row types by expanding references to cursor parameters.

Enum Summary

CompositeOperandTypeChecker.Composition
SqlTypeFamily	SqlTypeFamily provides SQL type categorization.
SqlTypeName	Enumeration of the type names which can be used to construct a SQL type.
SqlTypeName.Limit

Package org.eigenbase.sql.type Description

SQL type system.

Revision	$Id: //open/dev/farrago/src/org/eigenbase/sql/type/package.html#5 $
Copyright	Copyright (C) 2005-2009 The Eigenbase Project Copyright (C) 2004-2009 SQLstream, Inc. Copyright (C) 2005-2009 LucidEra, Inc.
Author	Julian Hyde