CRFCacheStaleIndicator (Mallet 2 API)

java.lang.Object
- cc.mallet.fst.CRFCacheStaleIndicator

All Implemented Interfaces:

CacheStaleIndicator
```
public class CRFCacheStaleIndicator
extends java.lang.Object
implements CacheStaleIndicator
```
Indicates when the value/gradient becomes stale based on updates to CRF's parameters.

Author:

Gaurav Chandalia

Field Summary

Fields
Modifier and Type Field Description

protected int cachedGradientChangeStamp

protected int cachedValueChangeStamp

protected CRF crf

Constructor Summary

Constructors
Constructor Description

CRFCacheStaleIndicator(CRF crf)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`isGradientStale()`	Returns true if the gradient is stale, also updates the cacheGradientStamp.
`boolean`	`isValueStale()`	Returns true if the value is stale, also updates the cacheValueStamp.

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

- Field Detail
  - crf
```
protected CRF crf
```
  - cachedValueChangeStamp
```
protected int cachedValueChangeStamp
```
  - cachedGradientChangeStamp
```
protected int cachedGradientChangeStamp
```
- Constructor Detail
  - CRFCacheStaleIndicator
```
public CRFCacheStaleIndicator(CRF crf)
```
- Method Detail
  - isValueStale
```
public boolean isValueStale()
```
    Returns true if the value is stale, also updates the cacheValueStamp.
    
    Specified by:
    
    isValueStale in interface CacheStaleIndicator
  - isGradientStale
```
public boolean isGradientStale()
```
    Returns true if the gradient is stale, also updates the cacheGradientStamp.
    
    Specified by:
    
    isGradientStale in interface CacheStaleIndicator