CountingAggregator (Lucene 3.6.2 API)

java.lang.Object
- org.apache.lucene.facet.search.aggregator.CountingAggregator

All Implemented Interfaces:

Aggregator

Direct Known Subclasses:

ComplementCountingAggregator
```
public class CountingAggregator
extends Object
implements Aggregator
```
A CountingAggregator updates a counter array with the size of the whole taxonomy, counting the number of times each category appears in the given set of documents.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Field Summary

Fields
Modifier and Type Field Description

protected int[] counterArray

Constructor Summary

Constructors
Constructor Description

CountingAggregator(int[] counterArray)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`aggregate(int ordinal)`	Collect (and do whatever an implementation deems appropriate) the category given by its ordinal.
`boolean`	`equals(Object obj)`
`int`	`hashCode()`
`void`	`setNextDoc(int docid, float score)`	Specify the document (and its score in the search) that the following `Aggregator.aggregate(int)` calls will pertain to.

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

- Field Detail
  - counterArray
```
protected int[] counterArray
```
- Constructor Detail
  - CountingAggregator
```
public CountingAggregator(int[] counterArray)
```
- Method Detail
  - aggregate
```
public void aggregate(int ordinal)
```
    Description copied from interface: Aggregator
    
    Collect (and do whatever an implementation deems appropriate) the category given by its ordinal. This category belongs to a document given earlier by Aggregator.setNextDoc(int, float).
    
    Specified by:
    
    aggregate in interface Aggregator
  - setNextDoc
```
public void setNextDoc(int docid,
                       float score)
```
    Description copied from interface: Aggregator
    
    Specify the document (and its score in the search) that the following Aggregator.aggregate(int) calls will pertain to.
    
    Specified by:
    
    setNextDoc in interface Aggregator
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object