public final class Type implements Serializable
Describes a type in the Cloud Spanner type system. Types can either be primitive (for example,
INT64
and STRING
) or composite (for example, ARRAY
or
STRUCT<INT64,STRING>
).
Type
instances are immutable.
Methods
array(Type elementType)
public static Type array(Type elementType)
Returns a descriptor for an array of elementType
.
Parameter
Name | Description |
elementType | Type
|
Returns
bool()
public static Type bool()
Returns the descriptor for the BOOL type
.
Returns
bytes()
public static Type bytes()
Returns the descriptor for the BYTES
type: a variable-length byte string.
Returns
date()
public static Type date()
Returns the descriptor for the DATE
type: a timezone independent date in the range
[0001-01-01, 9999-12-31).
Returns
equals(Object o)
public boolean equals(Object o)
Parameter
Returns
Overrides
float64()
public static Type float64()
Returns the descriptor for the FLOAT64
type: a floating point type with the same value
domain as a Java {code double}.
Returns
getArrayElementType()
public Type getArrayElementType()
Returns the type descriptor for elements of this ARRAY
type.
Returns
getCode()
public Type.Code getCode()
Returns the type code corresponding to this type.
Returns
getFieldIndex(String fieldName)
public int getFieldIndex(String fieldName)
Returns the index of the field named fieldName
in this STRUCT
type.
Parameter
Name | Description |
fieldName | String
|
Returns
getStructFields()
public List<Type.StructField> getStructFields()
Returns the fields of this STRUCT
type.
Returns
hashCode()
Returns
Overrides
int64()
public static Type int64()
Returns the descriptor for the INT64
type: an integral type with the same value domain
as a Java long
.
Returns
json()
public static Type json()
Returns the descriptor for the JSON
type.
Returns
numeric()
public static Type numeric()
Returns the descriptor for the NUMERIC
type.
Returns
string()
public static Type string()
Returns the descriptor for the STRING
type: a variable-length Unicode character string.
Returns
struct(Type.StructField[] fields)
public static Type struct(Type.StructField[] fields)
Returns a descriptor for a STRUCT
type: an ordered collection of named and typed
fields.
Parameter
Returns
struct(Iterable<Type.StructField> fields)
public static Type struct(Iterable<Type.StructField> fields)
Returns a descriptor for a STRUCT
type: an ordered collection of named and typed
fields.
Parameter
Returns
timestamp()
public static Type timestamp()
Returns the descriptor for the TIMESTAMP
type: a nano precision timestamp in the range
[0000-01-01 00:00:00, 9999-12-31 23:59:59.999999999 UTC].
Returns
toString()
Returns
Overrides