ConcurrentLongHashSet (ActiveMQ Artemis Commons 2.23.0 API)

java.lang.Object
- org.apache.activemq.artemis.utils.collections.ConcurrentLongHashSet

```
public class ConcurrentLongHashSet
extends java.lang.Object
```
Concurrent hash set for primitive longs Provides similar methods as a ConcurrentSet<Long> but since it's an open hash map with linear probing, no node allocations are required to store the values.
Items MUST be >= 0.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static interface ConcurrentLongHashSet.ConsumerLong

Constructor Summary

Constructors
Constructor	Description
`ConcurrentLongHashSet()`
`ConcurrentLongHashSet(int expectedItems)`
`ConcurrentLongHashSet(int expectedItems, int numSections)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`add(long item)`
`long`	`capacity()`
`void`	`clear()`
`boolean`	`contains(long item)`
`void`	`forEach(ConcurrentLongHashSet.ConsumerLong processor)`
`boolean`	`isEmpty()`
`java.util.Set<java.lang.Long>`	`items()`
`boolean`	`remove(long item)`	Remove an existing entry if found
`int`	`size()`

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

Constructor Detail

ConcurrentLongHashSet
```
public ConcurrentLongHashSet()
```

ConcurrentLongHashSet

public ConcurrentLongHashSet(int expectedItems)

ConcurrentLongHashSet

public ConcurrentLongHashSet(int expectedItems,
                             int numSections)

Method Detail

size
```
public int size()
```

capacity
```
public long capacity()
```

isEmpty
```
public boolean isEmpty()
```

contains

public boolean contains(long item)

add
```
public boolean add(long item)
```

remove
```
public boolean remove(long item)
```
Remove an existing entry if found

Parameters:

item -

Returns:

true if removed or false if item was not present

clear
```
public void clear()
```

forEach

public void forEach(ConcurrentLongHashSet.ConsumerLong processor)

items
```
public java.util.Set<java.lang.Long> items()
```
Returns:

a new list of all keys (makes a copy)