Provider.PutIfAbsent(Object, Object) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
If the specified key is not already associated with a value (or is mapped
to null) associates it with the given value and returns
null, else returns the current value.
[Android.Runtime.Register("putIfAbsent", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;", "GetPutIfAbsent_Ljava_lang_Object_Ljava_lang_Object_Handler", ApiSince=26)]
public override Java.Lang.Object? PutIfAbsent(Java.Lang.Object? key, Java.Lang.Object? value);[<Android.Runtime.Register("putIfAbsent", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;", "GetPutIfAbsent_Ljava_lang_Object_Ljava_lang_Object_Handler", ApiSince=26)>]
override this.PutIfAbsent : Java.Lang.Object * Java.Lang.Object -> Java.Lang.ObjectParameters
- key
- Object
the key with which the specified value is to be associated.
- value
- Object
the value to be associated with the specified key.
Returns
the previous value associated with the specified key, or null if there was no mapping.
- Attributes
Remarks
If the specified key is not already associated with a value (or is mapped to null) associates it with the given value and returns null, else returns the current value.
If a security manager is enabled, its checkSecurityAccess method is called with the string "putProviderProperty."+name, where name is the provider name, to see if it's ok to set this provider's property values.
Added in 1.8.
Java documentation for java.security.Provider.putIfAbsent(java.lang.Object, java.lang.Object).
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.