Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/1346#discussion_r15481293
--- Diff: python/pyspark/sql.py ---
@@ -20,8 +20,413 @@
from py4j.protocol import Py4JError
-__all__ = ["SQLContext", "HiveContext", "LocalHiveContext",
"TestHiveContext", "SchemaRDD", "Row"]
+__all__ = [
+ "StringType", "BinaryType", "BooleanType", "DecimalType", "DoubleType",
+ "FloatType", "ByteType", "IntegerType", "LongType", "ShortType",
+ "ArrayType", "MapType", "StructField", "StructType",
+ "SQLContext", "HiveContext", "LocalHiveContext", "TestHiveContext",
"SchemaRDD", "Row"]
+class PrimitiveTypeSingleton(type):
+ _instances = {}
+ def __call__(cls):
+ if cls not in cls._instances:
+ cls._instances[cls] = super(PrimitiveTypeSingleton,
cls).__call__()
+ return cls._instances[cls]
+
+class StringType(object):
+ """Spark SQL StringType
+
+ The data type representing string values.
+
+ """
+ __metaclass__ = PrimitiveTypeSingleton
+
+ def _get_scala_type_string(self):
+ return "StringType"
+
+class BinaryType(object):
+ """Spark SQL BinaryType
+
+ The data type representing bytes values and bytearray values.
+
+ """
+ __metaclass__ = PrimitiveTypeSingleton
+
+ def _get_scala_type_string(self):
+ return "BinaryType"
+
+class BooleanType(object):
+ """Spark SQL BooleanType
+
+ The data type representing bool values.
+
+ """
+ __metaclass__ = PrimitiveTypeSingleton
+
+ def _get_scala_type_string(self):
+ return "BooleanType"
+
+class TimestampType(object):
+ """Spark SQL TimestampType"""
--- End diff --
We should also list the python types that are expected when its not obvious.
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