SentinelIntSet (Lucene 3.6.2 API)

java.lang.Object
- org.apache.lucene.search.grouping.SentinelIntSet

```
public class SentinelIntSet
extends Object
```
A native int set where one value is reserved to mean "EMPTY"

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

Field Summary

Fields
Modifier and Type Field Description

int count

int emptyVal

int[] keys

int rehashCount

Constructor Summary

Constructors
Constructor Description

SentinelIntSet(int size, int emptyVal)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`
`boolean`	`exists(int key)`
`int`	`find(int key)`	returns the slot for this key, or -slot-1 if not found
`int`	`getSlot(int key)`	returns the slot for this key
`int`	`hash(int key)`
`int`	`put(int key)`
`void`	`rehash()`
`int`	`size()`

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

- Field Detail
  - keys
```
public int[] keys
```
  - count
```
public int count
```
  - emptyVal
```
public final int emptyVal
```
  - rehashCount
```
public int rehashCount
```
- Constructor Detail
  - SentinelIntSet
```
public SentinelIntSet(int size,
                      int emptyVal)
```
    Parameters:
    
    size - The minimum number of elements this set should be able to hold without re-hashing (i.e. the slots are guaranteed not to change)
    
    emptyVal - The integer value to use for EMPTY
- Method Detail
  - clear
```
public void clear()
```
  - hash
```
public int hash(int key)
```
  - size
```
public int size()
```
  - getSlot
```
public int getSlot(int key)
```
    returns the slot for this key
  - find
```
public int find(int key)
```
    returns the slot for this key, or -slot-1 if not found
  - exists
```
public boolean exists(int key)
```
  - put
```
public int put(int key)
```
  - rehash
```
public void rehash()
```