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MutableKeyValueStore
  public
  
  
  
  interface
  MutableKeyValueStore
  
  
      implements
      
        KeyValueStore
      
  
  
  
    
    | android.adservices.ondevicepersonalization.MutableKeyValueStore | 
  
  
    
  An interface to a read-write key-value store.
 Used as a Data Access Object for the LOCAL_DATA table.
  
Summary
| Public methods | 
|---|
  
  
  
    | 
        abstract
        
        
        
        
        byte[] | 
      put(String key, byte[] value)
      Associates the specified value with the specified key.
        
    
 | 
  
  
  
  
    | 
        abstract
        
        
        
        
        byte[] | 
      remove(String key)
      Removes the mapping for the specified key.
        
    
 | 
  
Public methods
    put
    
public abstract byte[] put (String key, 
                byte[] value)
    
    
    
  Associates the specified value with the specified key.
 If a value already exists for that key, the old value is replaced.
 
 This method may take several seconds to complete, so it should
 only be called from a worker thread.
    
    | Parameters | 
|---|
      
        | key | String: key with which the specified value is to be associated
 This value cannot benull. | 
      
        | value | byte: value to be associated with the specified key
 This value cannot benull. | 
    
    
      | Returns | 
|---|
      
        | byte[] | the previous value associated with key, or null if there was no mapping for key. | 
    
 
    remove
    
public abstract byte[] remove (String key)
    
    
    
  Removes the mapping for the specified key.
 
 This method may take several seconds to complete, so it should
 only be called from a worker thread.
    
    | Parameters | 
|---|
      
        | key | String: key whose mapping is to be removed
 This value cannot benull. | 
    
    
      | Returns | 
|---|
      
        | byte[] | the previous value associated with key, or null if there was no mapping for key. | 
    
 
 
 
  
  
    
  
 
  
    
      
      
    
    
      
    
    
  
       
    
    
      
    
  
  
  Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
  Last updated 2025-02-10 UTC.
  
  
  
    
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