DynamicWeightedRandomSelectionImpl (Apache BookKeeper :: Parent 4.18.0-SNAPSHOT API)

java.lang.Object
- org.apache.bookkeeper.client.DynamicWeightedRandomSelectionImpl<T>

All Implemented Interfaces:

WeightedRandomSelection<T>
```
class DynamicWeightedRandomSelectionImpl<T>
extends java.lang.Object
implements WeightedRandomSelection<T>
```
DynamicWeightedRandomSelectionImpl class implements both getNextRandom overloaded methods. Where getNextRandom() method considers all bookies it knows of as candidates, but getNextRandom(Collection selectedNodes) method considers only 'selectedNodes' as candidates.

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.bookkeeper.client.WeightedRandomSelection
  WeightedRandomSelection.WeightedObject

Field Summary

Fields
Modifier and Type	Field	Description
`(package private) static org.slf4j.Logger`	`LOG`
`(package private) int`	`maxProbabilityMultiplier`
`(package private) java.util.Random`	`rand`
`(package private) java.util.concurrent.locks.ReadWriteLock`	`rwLock`
`(package private) java.util.Map<T,WeightedRandomSelection.WeightedObject>`	`weightMap`

Constructor Summary

Constructors
Constructor Description

DynamicWeightedRandomSelectionImpl()

DynamicWeightedRandomSelectionImpl(int maxMultiplier)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`T`	`getNextRandom()`
`T`	`getNextRandom(java.util.Collection<T> selectedNodes)`
`void`	`setMaxProbabilityMultiplier(int max)`
`void`	`updateMap(java.util.Map<T,WeightedRandomSelection.WeightedObject> updatedMap)`

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

Field Detail

LOG
```
static final org.slf4j.Logger LOG
```

maxProbabilityMultiplier
```
int maxProbabilityMultiplier
```

weightMap

final java.util.Map<T,WeightedRandomSelection.WeightedObject> weightMap

rwLock

final java.util.concurrent.locks.ReadWriteLock rwLock

rand
```
java.util.Random rand
```

Constructor Detail

DynamicWeightedRandomSelectionImpl
```
DynamicWeightedRandomSelectionImpl()
```

DynamicWeightedRandomSelectionImpl

DynamicWeightedRandomSelectionImpl(int maxMultiplier)

Method Detail
- updateMap
```
public void updateMap(java.util.Map<T,WeightedRandomSelection.WeightedObject> updatedMap)
```
  Specified by:
  
  updateMap in interface WeightedRandomSelection<T>
- getNextRandom
```
public T getNextRandom()
```
  Specified by:
  
  getNextRandom in interface WeightedRandomSelection<T>
- getNextRandom
```
public T getNextRandom(java.util.Collection<T> selectedNodes)
```
  Specified by:
  
  getNextRandom in interface WeightedRandomSelection<T>
- setMaxProbabilityMultiplier
```
public void setMaxProbabilityMultiplier(int max)
```
  Specified by:
  
  setMaxProbabilityMultiplier in interface WeightedRandomSelection<T>