creates a structfield with empty metadata . concode_field_sep DataType StringType concode_elem_sep DataType BinaryType concode_elem_sep DataType TimestampType concode_elem_sep DataType LongType concode_elem_sep DataType DoubleType concode_elem_sep DataType IntegerType concode_elem_sep DataType ShortType concode_elem_sep DataType FloatType concode_elem_sep DataType ByteType concode_elem_sep DataType NullType concode_elem_sep DataType DateType concode_elem_sep DataType BooleanType concode_field_sep StructType createStructType concode_elem_sep StructType createStructType concode_elem_sep DecimalType createDecimalType concode_elem_sep DecimalType createDecimalType concode_elem_sep ArrayType createArrayType concode_elem_sep ArrayType createArrayType concode_elem_sep MapType createMapType concode_elem_sep MapType createMapType
StructField function ( String arg0 , DataType arg1 , boolean arg2 ) { return createStructField ( arg0 , arg1 , arg2 , ( new MetadataBuilder ( ) ) . build ( ) ) ; }