public class MapType extends DataType implements scala.Product, scala.Serializable
null
values.
Please use DataTypes.createMapType()
to create a specific instance.
Constructor and Description |
---|
MapType()
No-arg constructor for kryo.
|
MapType(DataType keyType,
DataType valueType,
boolean valueContainsNull) |
Modifier and Type | Method and Description |
---|---|
static MapType |
apply(DataType keyType,
DataType valueType)
Construct a
MapType object with the given key type and value type. |
MapType |
asNullable()
Returns the same data type but set all nullability fields are true
(
StructField.nullable , ArrayType.containsNull , and MapType.valueContainsNull ). |
void |
buildFormattedString(String prefix,
scala.collection.mutable.StringBuilder builder) |
int |
defaultSize()
The default size of a value of the MapType is
100 * (the default size of the key type + the default size of the value type).
|
org.json4s.JsonAST.JValue |
jsonValue() |
DataType |
keyType() |
String |
simpleString() |
boolean |
valueContainsNull() |
DataType |
valueType() |
equalsIgnoreCompatibleNullability, equalsIgnoreNullability, fromCaseClassString, fromJson, isPrimitive, json, prettyJson, sameType, typeName, unapply
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
public static MapType apply(DataType keyType, DataType valueType)
MapType
object with the given key type and value type.
The valueContainsNull
is true.public DataType keyType()
public DataType valueType()
public boolean valueContainsNull()
public void buildFormattedString(String prefix, scala.collection.mutable.StringBuilder builder)
public int defaultSize()
defaultSize
in class DataType
public String simpleString()
simpleString
in class DataType
public MapType asNullable()
DataType
StructField.nullable
, ArrayType.containsNull
, and MapType.valueContainsNull
).asNullable
in class DataType