Provider.ComputeIfAbsent(Object, IFunction) Method
Important
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If the specified key is not already associated with a value (or
is mapped to null
), attempts to compute its value using
the given mapping function and enters it into this map unless
null
.
[Android.Runtime.Register("computeIfAbsent", "(Ljava/lang/Object;Ljava/util/function/Function;)Ljava/lang/Object;", "GetComputeIfAbsent_Ljava_lang_Object_Ljava_util_function_Function_Handler", ApiSince=26)]
public virtual Java.Lang.Object? ComputeIfAbsent (Java.Lang.Object? key, Java.Util.Functions.IFunction? mappingFunction);
[<Android.Runtime.Register("computeIfAbsent", "(Ljava/lang/Object;Ljava/util/function/Function;)Ljava/lang/Object;", "GetComputeIfAbsent_Ljava_lang_Object_Ljava_util_function_Function_Handler", ApiSince=26)>]
abstract member ComputeIfAbsent : Java.Lang.Object * Java.Util.Functions.IFunction -> Java.Lang.Object
override this.ComputeIfAbsent : Java.Lang.Object * Java.Util.Functions.IFunction -> Java.Lang.Object
- key
- Object
- mappingFunction
- IFunction
- Attributes
If the specified key is not already associated with a value (or is mapped to null
), attempts to compute its value using the given mapping function and enters it into this map unless null
.
If a security manager is enabled, its checkSecurityAccess
method is called with the strings "putProviderProperty."+name
and "removeProviderProperty."+name
, where name
is the provider name, to see if it's ok to set this provider's property values and remove this provider's properties.
Added in 1.8.
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.