PageAbstractEvictionTracker (Ignite 2.17.0)

java.lang.Object
- org.apache.ignite.internal.processors.cache.persistence.evict.PageAbstractEvictionTracker

All Implemented Interfaces:

PageEvictionTracker, LifecycleAware

Direct Known Subclasses:

FairFifoPageEvictionTracker, Random2LruPageEvictionTracker, RandomLruPageEvictionTracker
```
public abstract class PageAbstractEvictionTracker
extends Object
implements PageEvictionTracker
```

Field Summary

Fields
Modifier and Type Field Description

protected PageMemoryNoStoreImpl pageMem
Page memory.

protected int trackingSize
Tracking array size.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`protected abstract boolean`	`checkTouch(long pageId)`
`boolean`	`evictionRequired()`	Check if page eviction is required according to the configured policy.

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

Methods inherited from interface org.apache.ignite.lifecycle.LifecycleAware
start, stop

Methods inherited from interface org.apache.ignite.internal.processors.cache.persistence.evict.PageEvictionTracker
evictDataPage, forgetPage, touchPage

- Field Detail
  - pageMem
```
protected final PageMemoryNoStoreImpl pageMem
```
    Page memory.
  - trackingSize
```
protected final int trackingSize
```
    Tracking array size.
- Method Detail
  - evictionRequired
```
public boolean evictionRequired()
```
    Check if page eviction is required according to the configured policy.
    
    Specified by:
    
    evictionRequired in interface PageEvictionTracker
    
    Returns:
    
    True if eviction required.
  - checkTouch
```
protected abstract boolean checkTouch(long pageId)
```
    Parameters:
    
    pageId - Page ID.
    
    Returns:
    
    true if page was touched at least once.