EmptySignature (library 4.14.2 API)

java.lang.Object
- com.bumptech.glide.signature.EmptySignature

All Implemented Interfaces:

Key
```
public final class EmptySignature
extends java.lang.Object
implements Key
```
An empty key that is always equal to all other empty keys.

Field Summary
- Fields inherited from interface com.bumptech.glide.load.Key
  CHARSET, STRING_CHARSET_NAME

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static EmptySignature`	`obtain()`
`java.lang.String`	`toString()`
`void`	`updateDiskCacheKey(java.security.MessageDigest messageDigest)`	Adds all uniquely identifying information to the given digest.

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

Methods inherited from interface com.bumptech.glide.load.Key
equals, hashCode

- Method Detail
  - obtain
```
@NonNull
public static EmptySignature obtain()
```
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - updateDiskCacheKey
```
public void updateDiskCacheKey(@NonNull
                               java.security.MessageDigest messageDigest)
```
    Description copied from interface: Key
    
    Adds all uniquely identifying information to the given digest.
    Note - Using MessageDigest.reset() inside of this method will result in undefined behavior.
    
    Specified by:
    
    updateDiskCacheKey in interface Key