org.apache.flink.api.common.python

Class PythonBridgeUtils

java.lang.Object

org.apache.flink.api.common.python.PythonBridgeUtils

public final class PythonBridgeUtils
extends Object

Utility class that contains helper methods to create a TableSource from a file which contains Python objects.

Constructor Summary

Constructors

Constructor and Description
PythonBridgeUtils()

Method Summary

Modifier and Type	Method and Description
static byte[]	convertLiteralToPython(org.apache.calcite.rex.RexLiteral o, org.apache.calcite.sql.type.SqlTypeName typeName)
static Object	getPickledBytesFromJavaObject(Object obj, org.apache.flink.api.common.typeinfo.TypeInformation<?> dataType)
static Object	getPickledBytesFromRow(org.apache.flink.types.Row row, org.apache.flink.table.types.DataType[] dataTypes)
static List<byte[]>	readPickledBytes(String fileName)
static List<?>	readPythonObjects(String fileName)
static List<Object[]>	readPythonObjects(String fileName, boolean batched)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PythonBridgeUtils

public PythonBridgeUtils()

Method Detail

readPythonObjects

public static List<Object[]> readPythonObjects(String fileName,
                                               boolean batched)
                                        throws IOException

Throws:

IOException

readPythonObjects

public static List<?> readPythonObjects(String fileName)
                                 throws IOException

Throws:

IOException

convertLiteralToPython

public static byte[] convertLiteralToPython(org.apache.calcite.rex.RexLiteral o,
                                            org.apache.calcite.sql.type.SqlTypeName typeName)

readPickledBytes

public static List<byte[]> readPickledBytes(String fileName)
                                     throws IOException

Throws:

IOException

getPickledBytesFromJavaObject

public static Object getPickledBytesFromJavaObject(Object obj,
                                                   org.apache.flink.api.common.typeinfo.TypeInformation<?> dataType)
                                            throws IOException

Throws:

IOException

getPickledBytesFromRow

public static Object getPickledBytesFromRow(org.apache.flink.types.Row row,
                                            org.apache.flink.table.types.DataType[] dataTypes)
                                     throws IOException

Throws:

IOException