CacheKeyFactory (ExoPlayer library)

```
@Deprecated
public interface CacheKeyFactory
```
Deprecated.
com.google.android.exoplayer2 is deprecated. Please migrate to androidx.media3 (which contains the same ExoPlayer code). See the migration guide for more details, including a script to help with the migration.

Factory for cache keys.

Field Summary

Fields
Modifier and Type Field Description

static CacheKeyFactory DEFAULT
Deprecated.

Default CacheKeyFactory.

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method	Description
`String`	`buildCacheKey(DataSpec dataSpec)`	Deprecated. Returns the cache key of the resource containing the data defined by a `DataSpec`.

- Field Detail
  - DEFAULT
```
static final CacheKeyFactory DEFAULT
```
    Deprecated.
    
    Default CacheKeyFactory.
- Method Detail
  - buildCacheKey
```
String buildCacheKey(DataSpec dataSpec)
```
    Deprecated.
    
    Returns the cache key of the resource containing the data defined by a DataSpec.
    Note that since the returned cache key corresponds to the whole resource, implementations must not return different cache keys for DataSpecs that define different ranges of the same resource. As a result, implementations should not use fields such as DataSpec.position and DataSpec.length.
    
    Parameters:
    
    dataSpec - The DataSpec.
    
    Returns:
    
    The cache key of the resource.