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

Class TumblingWindowSpec

java.lang.Object

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

All Implemented Interfaces:

WindowSpec

public class TumblingWindowSpec
extends Object
implements WindowSpec

Logical representation of a tumbling window specification.

Field Summary

Fields

Modifier and Type	Field and Description
static String	FIELD_NAME_OFFSET
static String	FIELD_NAME_SIZE

Constructor Summary

Constructors

Constructor and Description
TumblingWindowSpec(Duration size, Duration offset)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
Duration	getOffset()
Duration	getSize()
int	hashCode()
boolean	isAlignedWindow() Return true if the window is aligned.
String	toString()
String	toSummaryString(String windowing, String[] inputFieldNames)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

FIELD_NAME_SIZE

public static final String FIELD_NAME_SIZE

See Also:

Constant Field Values

FIELD_NAME_OFFSET

public static final String FIELD_NAME_OFFSET

See Also:

Constant Field Values

Constructor Detail

TumblingWindowSpec

public TumblingWindowSpec(Duration size,
                          @Nullable
                          Duration offset)

Method Detail

toSummaryString

public String toSummaryString(String windowing,
                              String[] inputFieldNames)

Specified by:

toSummaryString in interface WindowSpec

getSize

public Duration getSize()

getOffset

public Duration getOffset()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

isAlignedWindow

public boolean isAlignedWindow()

Description copied from interface: WindowSpec

Return true if the window is aligned.

See more details about aligned window and unaligned window in WindowAggOperator.

Specified by:

isAlignedWindow in interface WindowSpec