PoolUtils.ErodingPerKeyKeyedObjectPool

java.lang.Object
- org.datanucleus.store.rdbms.datasource.dbcp2.pool2.PoolUtils.ErodingKeyedObjectPool<K,V>
- - org.datanucleus.store.rdbms.datasource.dbcp2.pool2.PoolUtils.ErodingPerKeyKeyedObjectPool<K,V>

Type Parameters:

K - object pool key type

V - object pool value type

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, KeyedObjectPool<K,V>

Enclosing class:

PoolUtils
```
private static final class PoolUtils.ErodingPerKeyKeyedObjectPool<K,V>
extends PoolUtils.ErodingKeyedObjectPool<K,V>
```
Extends ErodingKeyedObjectPool to allow erosion to take place on a per-key basis. Timing of erosion events is tracked separately for separate keyed pools.

Field Summary

Fields
Modifier and Type	Field	Description
`private float`	`factor`	Erosion factor - same for all pools
`private java.util.Map<K,PoolUtils.ErodingFactor>`	`factors`	Map of ErodingFactor instances keyed on pool keys

Constructor Summary

Constructors
Constructor	Description
`ErodingPerKeyKeyedObjectPool(KeyedObjectPool<K,V> keyedPool, float factor)`	Creates a new ErordingPerKeyKeyedObjectPool decorating the given keyed pool with the specified erosion factor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected PoolUtils.ErodingFactor`	`getErodingFactor(K key)`	Returns the eroding factor for the given key
`java.lang.String`	`toString()`

Methods inherited from class org.datanucleus.store.rdbms.datasource.dbcp2.pool2.PoolUtils.ErodingKeyedObjectPool
addObject, borrowObject, clear, clear, close, getKeyedPool, getNumActive, getNumActive, getNumIdle, getNumIdle, invalidateObject, returnObject

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

Methods inherited from interface org.datanucleus.store.rdbms.datasource.dbcp2.pool2.KeyedObjectPool
addObjects, addObjects

- Field Detail
  - factor
```
private final float factor
```
    Erosion factor - same for all pools
  - factors
```
private final java.util.Map<K,PoolUtils.ErodingFactor> factors
```
    Map of ErodingFactor instances keyed on pool keys
- Constructor Detail
  - ErodingPerKeyKeyedObjectPool
```
public ErodingPerKeyKeyedObjectPool(KeyedObjectPool<K,V> keyedPool,
                                    float factor)
```
    Creates a new ErordingPerKeyKeyedObjectPool decorating the given keyed pool with the specified erosion factor.
    
    Parameters:
    
    keyedPool - underlying keyed pool
    
    factor - erosion factor
- Method Detail
  - getErodingFactor
```
protected PoolUtils.ErodingFactor getErodingFactor(K key)
```
    Returns the eroding factor for the given key
    
    Overrides:
    
    getErodingFactor in class PoolUtils.ErodingKeyedObjectPool<K,V>
    
    Parameters:
    
    key - key
    
    Returns:
    
    eroding factor for the given keyed pool
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class PoolUtils.ErodingKeyedObjectPool<K,V>