Package org.apache.flink.table.types.inference.strategies

Class SpecificInputTypeStrategies

java.lang.Object

org.apache.flink.table.types.inference.strategies.SpecificInputTypeStrategies

@Internal
public final class SpecificInputTypeStrategies
extends Object

Entry point for specific input type strategies not covered in InputTypeStrategies.

This primarily serves the purpose of reducing visibility of individual type strategy implementations to avoid polluting the API classpath.

Field Summary

Fields

Modifier and Type	Field	Description
static final InputTypeStrategy	ARRAY	Strategy specific for BuiltInFunctionDefinitions.ARRAY.
static final ArgumentTypeStrategy	ARRAY_ELEMENT_ARG	Argument type derived from the array element type.
static final ArgumentTypeStrategy	ARRAY_FULLY_COMPARABLE	Argument type representing the array is comparable.
static final InputTypeStrategy	CAST	See CastInputTypeStrategy.
static final InputTypeStrategy	CURRENT_WATERMARK	See CurrentWatermarkInputTypeStrategy.
static final InputTypeStrategy	EXTRACT	See ExtractInputTypeStrategy.
static final InputTypeStrategy	IN	Type strategy specific for BuiltInFunctionDefinitions.IN.
static final ArgumentTypeStrategy	INDEX	Argument type strategy that expects a LogicalTypeFamily.INTEGER_NUMERIC starting from 0.
static final ArgumentTypeStrategy	JSON_ARGUMENT	Argument type representing all types supported in a JSON context.
static final InputTypeStrategy	JSON_OBJECT	Input strategy for BuiltInFunctionDefinitions.JSON_OBJECT.
static final ArgumentTypeStrategy	JSON_QUERY_ON_EMPTY_ERROR_BEHAVIOUR	See JsonQueryOnErrorEmptyArgumentTypeStrategy.
static final InputTypeStrategy	LEAD_LAG	Type strategy for BuiltInFunctionDefinitions.LAG and { @link BuiltInFunctionDefinitions#LEAD}.
static final InputTypeStrategy	MAP	See MapInputTypeStrategy.
static final InputTypeStrategy	OVER	See OverTypeStrategy.
static final InputTypeStrategy	REINTERPRET_CAST
static final InputTypeStrategy	TEMPORAL_OVERLAPS	See TemporalOverlapsInputTypeStrategy.
static final InputTypeStrategy	TWO_EQUALS_COMPARABLE	Strategy that checks all types are equals comparable with each other.
static final InputTypeStrategy	TWO_FULLY_COMPARABLE	Strategy that checks all types are fully comparable with each other.

Method Summary

Modifier and Type	Method	Description
static ArgumentTypeStrategy	percentage(boolean expectedNullability)	An ArgumentTypeStrategy that expects a percentage value between [0.0, 1.0].
static ArgumentTypeStrategy	percentageArray(boolean expectedNullability)	An ArgumentTypeStrategy that expects an array of percentages with each element between [0.0, 1.0].
static InputTypeStrategy	windowTimeIndicator()	See WindowTimeIndictorInputTypeStrategy.
static InputTypeStrategy	windowTimeIndicator(TimestampKind timestampKind)	See WindowTimeIndictorInputTypeStrategy.

Methods inherited from class java.lang.Object

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

Field Details

CAST

public static final InputTypeStrategy CAST

See CastInputTypeStrategy.

REINTERPRET_CAST

public static final InputTypeStrategy REINTERPRET_CAST

MAP

public static final InputTypeStrategy MAP

See MapInputTypeStrategy.

CURRENT_WATERMARK

public static final InputTypeStrategy CURRENT_WATERMARK

See CurrentWatermarkInputTypeStrategy.

OVER

public static final InputTypeStrategy OVER

See OverTypeStrategy.

JSON_ARGUMENT

public static final ArgumentTypeStrategy JSON_ARGUMENT

Argument type representing all types supported in a JSON context.

JSON_QUERY_ON_EMPTY_ERROR_BEHAVIOUR

public static final ArgumentTypeStrategy JSON_QUERY_ON_EMPTY_ERROR_BEHAVIOUR

See JsonQueryOnErrorEmptyArgumentTypeStrategy.

ARRAY_ELEMENT_ARG

public static final ArgumentTypeStrategy ARRAY_ELEMENT_ARG

Argument type derived from the array element type.

ARRAY_FULLY_COMPARABLE

public static final ArgumentTypeStrategy ARRAY_FULLY_COMPARABLE

Argument type representing the array is comparable.

JSON_OBJECT

public static final InputTypeStrategy JSON_OBJECT

Input strategy for BuiltInFunctionDefinitions.JSON_OBJECT.

The first argument defines the on-null behavior and is followed by any number of key-value pairs. Keys must be character string literals, while values are arbitrary expressions.

EXTRACT

public static final InputTypeStrategy EXTRACT

See ExtractInputTypeStrategy.

TEMPORAL_OVERLAPS

public static final InputTypeStrategy TEMPORAL_OVERLAPS

See TemporalOverlapsInputTypeStrategy.

INDEX

public static final ArgumentTypeStrategy INDEX

Argument type strategy that expects a LogicalTypeFamily.INTEGER_NUMERIC starting from 0.

ARRAY

public static final InputTypeStrategy ARRAY

Strategy specific for BuiltInFunctionDefinitions.ARRAY.

It expects at least one argument. All the arguments must have a common super type.

TWO_FULLY_COMPARABLE

public static final InputTypeStrategy TWO_FULLY_COMPARABLE

Strategy that checks all types are fully comparable with each other. Requires exactly two arguments.

TWO_EQUALS_COMPARABLE

public static final InputTypeStrategy TWO_EQUALS_COMPARABLE

Strategy that checks all types are equals comparable with each other. Requires exactly two arguments.

IN

public static final InputTypeStrategy IN

Type strategy specific for BuiltInFunctionDefinitions.IN.

LEAD_LAG

public static final InputTypeStrategy LEAD_LAG

Type strategy for BuiltInFunctionDefinitions.LAG and { @link BuiltInFunctionDefinitions#LEAD}.

Method Details

windowTimeIndicator

public static InputTypeStrategy windowTimeIndicator(TimestampKind timestampKind)

See WindowTimeIndictorInputTypeStrategy.

windowTimeIndicator

public static InputTypeStrategy windowTimeIndicator()

See WindowTimeIndictorInputTypeStrategy.

percentage

public static ArgumentTypeStrategy percentage(boolean expectedNullability)

An ArgumentTypeStrategy that expects a percentage value between [0.0, 1.0].

percentageArray

public static ArgumentTypeStrategy percentageArray(boolean expectedNullability)

An ArgumentTypeStrategy that expects an array of percentages with each element between [0.0, 1.0].