org.apache.flink.table.types.utils

类 ValueDataTypeConverter

java.lang.Object

org.apache.flink.table.types.utils.ValueDataTypeConverter

@Internal
public final class ValueDataTypeConverter
extends Object

Value-based data type extractor that supports extraction of clearly identifiable data types for input conversion.

This converter is more precise than ClassDataTypeConverter because it also considers nullability, length, precision, and scale of values.

方法概要

限定符和类型	方法和说明
static Optional<DataType>	extractDataType(Object value) Returns the clearly identifiable data type if possible.

从类继承的方法 java.lang.Object

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

方法详细资料

extractDataType

public static Optional<DataType> extractDataType(Object value)

Returns the clearly identifiable data type if possible. For example, 12L can be expressed as DataTypes.BIGINT().notNull(). However, for example, null could be any type and is not supported.

All types of the LogicalTypeFamily.PREDEFINED family, symbols, and arrays are supported.