Package org.apache.flink.table.planner.plan.logical

Class WindowingStrategy

java.lang.Object

org.apache.flink.table.planner.plan.logical.WindowingStrategy

Direct Known Subclasses:

SliceAttachedWindowingStrategy, TimeAttributeWindowingStrategy, WindowAttachedWindowingStrategy

public abstract class WindowingStrategy
extends Object

Logical representation of a windowing strategy.

Field Summary

Fields

Modifier and Type	Field	Description
static String	FIELD_NAME_IS_ROWTIME
static String	FIELD_NAME_TIME_ATTRIBUTE_TYPE
static String	FIELD_NAME_WINDOW
protected boolean	isRowtime
protected LogicalType	timeAttributeType
protected WindowSpec	window

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	WindowingStrategy(WindowSpec window, LogicalType timeAttributeType)
protected	WindowingStrategy(WindowSpec window, LogicalType timeAttributeType, boolean isRowtime)

Method Summary

Modifier and Type	Method	Description
LogicalType	getTimeAttributeType()
WindowSpec	getWindow()
boolean	isProctime()
boolean	isRowtime()
abstract String	toSummaryString(String[] inputFieldNames)

Methods inherited from class java.lang.Object

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

Field Detail

FIELD_NAME_WINDOW

public static final String FIELD_NAME_WINDOW

See Also:

Constant Field Values

FIELD_NAME_TIME_ATTRIBUTE_TYPE

public static final String FIELD_NAME_TIME_ATTRIBUTE_TYPE

See Also:

Constant Field Values

FIELD_NAME_IS_ROWTIME

public static final String FIELD_NAME_IS_ROWTIME

See Also:

Constant Field Values

window

protected final WindowSpec window

timeAttributeType

protected final LogicalType timeAttributeType

isRowtime

protected final boolean isRowtime

Constructor Detail

WindowingStrategy

protected WindowingStrategy(WindowSpec window,
                            LogicalType timeAttributeType)

WindowingStrategy

protected WindowingStrategy(WindowSpec window,
                            LogicalType timeAttributeType,
                            boolean isRowtime)

Method Detail

toSummaryString

public abstract String toSummaryString(String[] inputFieldNames)

getWindow

public WindowSpec getWindow()

getTimeAttributeType

public LogicalType getTimeAttributeType()

isRowtime

public boolean isRowtime()

isProctime

public boolean isProctime()