TumblingWindowSpec (Flink : 2.0-preview1 API)

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 Description

static String FIELD_NAME_OFFSET

static String FIELD_NAME_SIZE

Constructor Summary

Constructors
Constructor Description

TumblingWindowSpec(Duration size, Duration offset)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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