public abstract class SqlTypeTransforms
extends java.lang.Object
SqlTypeTransform
.
NOTE: avoid anonymous inner classes here except for unique, non-generalizable strategies; anything else belongs in a reusable top-level class. If you find yourself copying and pasting an existing strategy's anonymous inner class, you're making a mistake.
Modifier and Type | Field and Description |
---|---|
static SqlTypeTransform |
FORCE_NULLABLE
Parameter type-inference transform strategy where a derived type is
transformed into the same type with nulls allowed.
|
static SqlTypeTransform |
LEAST_NULLABLE
Type-inference strategy whereby the result is NOT NULL if any of
the arguments is NOT NULL; otherwise the type is unchanged.
|
static SqlTypeTransform |
ONLY_COLUMN
Parameter type-inference transform strategy where a derived type must be
a struct type with precisely one field and the returned type is the type
of that field.
|
static SqlTypeTransform |
TO_MULTISET
Parameter type-inference transform strategy that wraps a given type
in a multiset.
|
static SqlTypeTransform |
TO_MULTISET_ELEMENT_TYPE
Parameter type-inference transform strategy where a derived type must be
a multiset type and the returned type is the multiset's element type.
|
static SqlTypeTransform |
TO_NOT_NULLABLE
Parameter type-inference transform strategy where a derived type is
transformed into the same type but not nullable.
|
static SqlTypeTransform |
TO_NULLABLE
Parameter type-inference transform strategy where a derived type is
transformed into the same type but nullable if any of a calls operands is
nullable
|
static SqlTypeTransform |
TO_NULLABLE_ALL
Parameter type-inference transform strategy where a derived type is
transformed into the same type, but nullable if and only if all of a call's
operands are nullable.
|
static SqlTypeTransform |
TO_VARYING
Type-inference strategy whereby the result type of a call is VARYING the
type given.
|
Constructor and Description |
---|
SqlTypeTransforms() |
public static final SqlTypeTransform TO_NULLABLE
public static final SqlTypeTransform TO_NULLABLE_ALL
public static final SqlTypeTransform TO_NOT_NULLABLE
public static final SqlTypeTransform FORCE_NULLABLE
public static final SqlTypeTransform LEAST_NULLABLE
public static final SqlTypeTransform TO_VARYING
public static final SqlTypeTransform TO_MULTISET_ELEMENT_TYPE
MultisetSqlType.getComponentType()
public static final SqlTypeTransform TO_MULTISET
public static final SqlTypeTransform ONLY_COLUMN
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