```
public final class Option<T>

                    
```
Defines available component (decoders, encoders, model loaders etc.) options with optional default values and the ability to affect the resource disk cache key used by .
Implementations must either be unique (usually declared as static final variables), or implement equals and hashCode.
Implementations can implement update to make sure that the disk cache key includes the specific option set.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`public interface`	`Option.CacheKeyUpdater`	An interface that updates a MessageDigest with the given value as part of a process togenerate a disk cache key.

Field Summary

Fields
Modifier and Type	Field	Description
`private final T`	`defaultValue`

Method Summary

Modifier and Type	Method	Description
`T`	`getDefaultValue()`	Returns a reasonable default to use if no other value is set, or `{@code null}`.
`static <T> Option<T>`	`memory(@NonNull() String key)`	Returns a new Option that does not affect disk cache keys with a `{@code null}` defaultvalue.
`static <T> Option<T>`	`memory(@NonNull() String key, @NonNull() T defaultValue)`	Returns a new Option that does not affect disk cache keys with the given value as thedefault value.
`static <T> Option<T>`	`disk(@NonNull() String key, @NonNull() Option.CacheKeyUpdater<T> cacheKeyUpdater)`	Returns a new Option that uses the given to update disk cache keys.
`static <T> Option<T>`	`disk(@NonNull() String key, @Nullable() T defaultValue, @NonNull() Option.CacheKeyUpdater<T> cacheKeyUpdater)`	Returns a new Option that uses the given to update disk cache keys and provides thegiven value as the default value.
`void`	`update(@NonNull() T value, @NonNull() MessageDigest messageDigest)`	Updates the given MessageDigest used to construct a cache key with the given valueusing the com.mobwith.imgmodule.load.Option.CacheKeyUpdater optionally provided in theconstructor.
`boolean`	`equals(Object o)`
`int`	`hashCode()`
`String`	`toString()`

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

- Method Detail
  - getDefaultValue
```
@Nullable() T getDefaultValue()
```
    Returns a reasonable default to use if no other value is set, or {@code null}.
  - memory
```
@NonNull() static <T> Option<T> memory(@NonNull() String key)
```
    Returns a new Option that does not affect disk cache keys with a {@code null} defaultvalue.
    
    Parameters:
    
    key - A unique package prefixed String that identifies this option (must be stableacross builds, so getName should not be used).
  - memory
```
@NonNull() static <T> Option<T> memory(@NonNull() String key, @NonNull() T defaultValue)
```
    Returns a new Option that does not affect disk cache keys with the given value as thedefault value.
    
    Parameters:
    
    key - A unique package prefixed String that identifies this option (must be stableacross builds, so getName should not be used).
  - disk
```
@NonNull() static <T> Option<T> disk(@NonNull() String key, @NonNull() Option.CacheKeyUpdater<T> cacheKeyUpdater)
```
    Returns a new Option that uses the given to update disk cache keys.
    
    Parameters:
    
    key - A unique package prefixed String that identifies this option (must be stableacross builds, so getName should not be used).
  - disk
```
@NonNull() static <T> Option<T> disk(@NonNull() String key, @Nullable() T defaultValue, @NonNull() Option.CacheKeyUpdater<T> cacheKeyUpdater)
```
    Returns a new Option that uses the given to update disk cache keys and provides thegiven value as the default value.
    
    Parameters:
    
    key - A unique package prefixed String that identifies this option (must be stableacross builds, so getName should not be used).
  - update
```
 void update(@NonNull() T value, @NonNull() MessageDigest messageDigest)
```
    Updates the given MessageDigest used to construct a cache key with the given valueusing the com.mobwith.imgmodule.load.Option.CacheKeyUpdater optionally provided in theconstructor.
  - equals
```
 boolean equals(Object o)
```
  - hashCode
```
 int hashCode()
```
  - toString
```
 String toString()
```

Class Option

Nested Class Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getDefaultValue

memory

memory

disk

disk

update

equals

hashCode

toString