org.apache.flink.table.runtime.typeutils

Class PythonTypeUtils

java.lang.Object

org.apache.flink.table.runtime.typeutils.PythonTypeUtils

@Internal
public final class PythonTypeUtils
extends Object

Utilities for converting Flink logical types, such as convert it to the related TypeSerializer or ProtoType.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PythonTypeUtils.LogicalTypeToConversionClassConverter Convert LogicalType to conversion class for flink planner.
static class	PythonTypeUtils.LogicalTypeToProtoTypeConverter Converter That convert the logicalType to the related Prototype.

Constructor Summary

Constructors

Constructor and Description
PythonTypeUtils()

Method Summary

Modifier and Type	Method and Description
static int	dateToInternal(Date date) Converts the Java type used for UDF parameters of SQL DATE type (Date) to internal representation (int).
static BigDecimal	fromBigDecimal(BigDecimal bigDecimal, int precision, int scale) Convert the specified bigDecimal according to the specified precision and scale.
static org.apache.beam.model.pipeline.v1.RunnerApi.Coder	getRowCoderProto(org.apache.flink.table.types.logical.RowType rowType, String coderUrn, FlinkFnApi.CoderParam.OutputMode outputMode)
static Date	internalToDate(int v) Converts the internal representation of a SQL DATE (int) to the Java type used for UDF parameters (Date).
static Timestamp	internalToTimestamp(long v) Converts the internal representation of a SQL TIMESTAMP (long) to the Java type used for UDF parameters (Timestamp).
static long	timestampToInternal(Timestamp ts) Converts the Java type used for UDF parameters of SQL TIMESTAMP type (Timestamp) to internal representation (long).
static org.apache.flink.api.common.typeutils.TypeSerializer	toBlinkTypeSerializer(org.apache.flink.table.types.logical.LogicalType logicalType)
static org.apache.flink.api.common.typeutils.TypeSerializer	toFlinkTypeSerializer(org.apache.flink.table.types.logical.LogicalType logicalType)
static FlinkFnApi.Schema.FieldType	toProtoType(org.apache.flink.table.types.logical.LogicalType logicalType)

Methods inherited from class java.lang.Object

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

Constructor Detail

PythonTypeUtils

public PythonTypeUtils()

Method Detail

getRowCoderProto

public static org.apache.beam.model.pipeline.v1.RunnerApi.Coder getRowCoderProto(org.apache.flink.table.types.logical.RowType rowType,
                                                                                 String coderUrn,
                                                                                 FlinkFnApi.CoderParam.OutputMode outputMode)

toProtoType

public static FlinkFnApi.Schema.FieldType toProtoType(org.apache.flink.table.types.logical.LogicalType logicalType)

toFlinkTypeSerializer

public static org.apache.flink.api.common.typeutils.TypeSerializer toFlinkTypeSerializer(org.apache.flink.table.types.logical.LogicalType logicalType)

toBlinkTypeSerializer

public static org.apache.flink.api.common.typeutils.TypeSerializer toBlinkTypeSerializer(org.apache.flink.table.types.logical.LogicalType logicalType)

fromBigDecimal

public static BigDecimal fromBigDecimal(BigDecimal bigDecimal,
                                        int precision,
                                        int scale)

Convert the specified bigDecimal according to the specified precision and scale. The specified bigDecimal may be rounded to have the specified scale and then the specified precision is checked. If precision overflow, it will return `null`.

Note: The implementation refers to DecimalData.fromBigDecimal(java.math.BigDecimal, int, int).

internalToDate

public static Date internalToDate(int v)

Converts the internal representation of a SQL DATE (int) to the Java type used for UDF parameters (Date).

Note: The implementation refers to SqlDateTimeUtils.internalToDate(int).

dateToInternal

public static int dateToInternal(Date date)

Converts the Java type used for UDF parameters of SQL DATE type (Date) to internal representation (int).

Note: The implementation refers to SqlDateTimeUtils.dateToInternal(java.sql.Date).

internalToTimestamp

public static Timestamp internalToTimestamp(long v)

Converts the internal representation of a SQL TIMESTAMP (long) to the Java type used for UDF parameters (Timestamp).

Note: The implementation refers to SqlDateTimeUtils.internalToTimestamp(long).

timestampToInternal

public static long timestampToInternal(Timestamp ts)

Converts the Java type used for UDF parameters of SQL TIMESTAMP type (Timestamp) to internal representation (long).

Note: The implementation refers to SqlDateTimeUtils.timestampToInternal(java.sql.Timestamp).