TimewarpOperator (druid-processing 28.0.0 API)

java.lang.Object
- org.apache.druid.query.TimewarpOperator<T>

All Implemented Interfaces:

PostProcessingOperator<T>
```
public class TimewarpOperator<T>
extends Object
implements PostProcessingOperator<T>
```
TimewarpOperator is an example post-processing operator that maps current time to the latest period ending withing the specified data interval and truncates the query interval to discard data that would be mapped to the future.

Constructor Summary

Constructors
Constructor Description

TimewarpOperator(org.joda.time.Interval dataInterval, org.joda.time.Period period, org.joda.time.DateTime origin)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected long`	`computeOffset(long t, org.joda.time.DateTimeZone tz)`	Map time t into the last `period` ending within `dataInterval`
`QueryRunner<T>`	`postProcess(QueryRunner<T> baseQueryRunner)`
`QueryRunner<T>`	`postProcess(QueryRunner<T> baseRunner, long now)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - TimewarpOperator
```
public TimewarpOperator(org.joda.time.Interval dataInterval,
                        org.joda.time.Period period,
                        org.joda.time.DateTime origin)
```
    Parameters:
    
    dataInterval - interval containing the actual data
    
    period - time will be offset by a multiple of the given period until there is at least a full period ending within the data interval
    
    origin - origin to be used to align time periods (e.g. to determine on what day of the week a weekly period starts)
- Method Detail
  - postProcess
```
public QueryRunner<T> postProcess(QueryRunner<T> baseQueryRunner)
```
    Specified by:
    
    postProcess in interface PostProcessingOperator<T>
  - postProcess
```
public QueryRunner<T> postProcess(QueryRunner<T> baseRunner,
                                  long now)
```
  - computeOffset
```
protected long computeOffset(long t,
                             org.joda.time.DateTimeZone tz)
```
    Map time t into the last `period` ending within `dataInterval`
    
    Parameters:
    
    t - the current time to be mapped into `dataInterval`
    
    Returns:
    
    the offset between the mapped time and time t