Constructor and Description |
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StructType() |
StructType(java.util.List<StructField> fields) |
Modifier and Type | Method and Description |
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StructType |
add(String name,
DataType dataType) |
StructType |
add(String name,
DataType dataType,
boolean nullable) |
StructType |
add(String name,
DataType dataType,
java.util.Map<String,String> metadata) |
StructType |
add(StructField field) |
StructField |
at(int index) |
Column |
column(int ordinal)
Creates a
Column expression for the field at the given ordinal |
boolean |
equals(Object o) |
boolean |
equivalent(DataType dataType)
Are the data types same? The metadata or column names could be different.
|
java.util.List<String> |
fieldNames() |
java.util.List<StructField> |
fields() |
StructField |
get(String fieldName) |
int |
hashCode() |
int |
indexOf(String fieldName) |
int |
length() |
String |
toJson()
Convert the data type to Delta protocol specified serialization format.
|
String |
toString() |
public StructType()
public StructType(java.util.List<StructField> fields)
public StructType add(StructField field)
public StructType add(String name, DataType dataType)
public StructType add(String name, DataType dataType, boolean nullable)
public StructType add(String name, DataType dataType, java.util.Map<String,String> metadata)
public java.util.List<StructField> fields()
public java.util.List<String> fieldNames()
public int length()
public int indexOf(String fieldName)
public StructField get(String fieldName)
public StructField at(int index)
public Column column(int ordinal)
Column
expression for the field at the given ordinal
ordinal
- the ordinal of the StructField
to create a column forpublic boolean equivalent(DataType dataType)
DataType
equivalent
in class DataType
public String toJson()
DataType