org.apache.flink.table.runtime.typeutils

类 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.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	PythonTypeUtils.LogicalTypeToProtoTypeConverter Converter That convert the logicalType to the related Prototype.

构造器概要

构造器

构造器和说明
PythonTypeUtils()

方法概要

限定符和类型	方法和说明
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 Date	internalToDate(int v) Converts the internal representation of a SQL DATE (int) to the Java type used for UDF parameters (Date).
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	toInternalSerializer(org.apache.flink.table.types.logical.LogicalType logicalType)
static FlinkFnApi.Schema.FieldType	toProtoType(org.apache.flink.table.types.logical.LogicalType logicalType)

从类继承的方法 java.lang.Object

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

构造器详细资料

PythonTypeUtils

public PythonTypeUtils()

方法详细资料

toProtoType

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

toInternalSerializer

public static org.apache.flink.api.common.typeutils.TypeSerializer toInternalSerializer(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).

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).