KllSketchIterator (datasketches-java 6.1.0 API)

java.lang.Object
- org.apache.datasketches.kll.KllSketchIterator

All Implemented Interfaces:

QuantilesSketchIterator

Direct Known Subclasses:

KllDoublesSketchIterator, KllFloatsSketchIterator, KllItemsSketchIterator, KllLongsSketchIterator
```
public class KllSketchIterator
extends Object
implements QuantilesSketchIterator
```
The base implementation for the KLL sketch iterator hierarchy used for viewing the non-ordered quantiles retained by a sketch.
Prototype example of the recommended iteration loop:
```
   SketchIterator itr = sketch.iterator();
   while (itr.next()) {
     ...get*();
   }
 
```
Author:

Lee Rhodes

Field Summary

Fields
Modifier and Type	Field	Description
`protected int`	`index`
`protected boolean`	`isInitialized_`
`protected int`	`level`
`protected int[]`	`levelsArr`
`protected int`	`numLevels`
`protected long`	`weight`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`long`	`getWeight()`	Gets the natural weight at the current index.
`boolean`	`next()`	Advances the index and checks if it is valid.

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

- Field Detail
  - levelsArr
```
protected final int[] levelsArr
```
  - numLevels
```
protected final int numLevels
```
  - level
```
protected int level
```
  - index
```
protected int index
```
  - weight
```
protected long weight
```
  - isInitialized_
```
protected boolean isInitialized_
```
- Method Detail
  - getWeight
```
public long getWeight()
```
    Description copied from interface: QuantilesSketchIterator
    
    Gets the natural weight at the current index.
    Don't call this before calling next() for the first time or after getting false from next().
    
    Specified by:
    
    getWeight in interface QuantilesSketchIterator
    
    Returns:
    
    the natural weight at the current index.
  - next
```
public boolean next()
```
    Description copied from interface: QuantilesSketchIterator
    
    Advances the index and checks if it is valid. The state of this iterator is undefined before the first call of this method.
    
    Specified by:
    
    next in interface QuantilesSketchIterator
    
    Returns:
    
    true if the next index is valid.