BaseGranularitySpec.LookupIntervalBuckets (druid-server 29.0.1 API)

java.lang.Object
- org.apache.druid.segment.indexing.granularity.BaseGranularitySpec.LookupIntervalBuckets

Enclosing class:

BaseGranularitySpec
```
protected static class BaseGranularitySpec.LookupIntervalBuckets
extends Object
```
This is a helper class to facilitate sharing the code for sortedBucketIntervals among the various GranularitySpec implementations. In particular, the UniformGranularitySpec needs to avoid materializing the intervals when the need to traverse them arises.

Constructor Summary

Constructors
Constructor Description

LookupIntervalBuckets(Iterable<org.joda.time.Interval> intervalIterable)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`com.google.common.base.Optional<org.joda.time.Interval>`	`bucketInterval(org.joda.time.DateTime dt)`	Returns a bucket interval using a fast lookup into an efficient data structure where all the intervals have been materialized
`Iterator<org.joda.time.Interval>`	`iterator()`
`TreeSet<org.joda.time.Interval>`	`materializedIntervals()`	Helper method to avoid collecting the intervals from the iterator

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

- Constructor Detail
  - LookupIntervalBuckets
```
public LookupIntervalBuckets(Iterable<org.joda.time.Interval> intervalIterable)
```
    Parameters:
    
    intervalIterable - The intervals to materialize
- Method Detail
  - bucketInterval
```
public com.google.common.base.Optional<org.joda.time.Interval> bucketInterval(org.joda.time.DateTime dt)
```
    Returns a bucket interval using a fast lookup into an efficient data structure where all the intervals have been materialized
    
    Parameters:
    
    dt - The date time to lookup
    
    Returns:
    
    An Optional containing the interval for the given DateTime if it exists
  - iterator
```
public Iterator<org.joda.time.Interval> iterator()
```
    Returns:
    
    An iterator to traverse the materialized intervals. The traversal will be done in order as dictated by Comparators.intervalsByStartThenEnd()
  - materializedIntervals
```
public TreeSet<org.joda.time.Interval> materializedIntervals()
```
    Helper method to avoid collecting the intervals from the iterator
    
    Returns:
    
    The TreeSet of materialized intervals