IConcurrentMap Interface
Definition
Important
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A Map providing thread safety and atomicity guarantees.
[Android.Runtime.Register("java/util/concurrent/ConcurrentMap", "", "Java.Util.Concurrent.IConcurrentMapInvoker")]
[Java.Interop.JavaTypeParameters(new System.String[] { "K", "V" })]
public interface IConcurrentMap : IDisposable, Java.Interop.IJavaPeerable, Java.Util.IMap[<Android.Runtime.Register("java/util/concurrent/ConcurrentMap", "", "Java.Util.Concurrent.IConcurrentMapInvoker")>]
[<Java.Interop.JavaTypeParameters(new System.String[] { "K", "V" })>]
type IConcurrentMap = interface
interface IMap
interface IJavaObject
interface IDisposable
interface IJavaPeerable- Derived
- Attributes
- Implements
Remarks
A Map providing thread safety and atomicity guarantees.
To maintain the specified guarantees, default implementations of methods including #putIfAbsent inherited from Map must be overridden by implementations of this interface. Similarly, implementations of the collections returned by methods #keySet, #values, and #entrySet must override methods such as removeIf when necessary to preserve atomicity guarantees.
Memory consistency effects: As with other concurrent collections, actions in a thread prior to placing an object into a ConcurrentMap as a key or value <i>happen-before</i> actions subsequent to the access or removal of that object from the ConcurrentMap in another thread.
This interface is a member of the Java Collections Framework.
Added in 1.5.
Java documentation for java.util.concurrent.ConcurrentMap.
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.
Properties
| Handle |
Gets the JNI value of the underlying Android object. (Inherited from IJavaObject) |
| IsEmpty |
Returns whether this map is empty. (Inherited from IMap) |
| JniIdentityHashCode |
Returns the value of |
| JniManagedPeerState |
State of the managed peer. (Inherited from IJavaPeerable) |
| JniPeerMembers |
Member access and invocation support. (Inherited from IJavaPeerable) |
| PeerReference |
Returns a JniObjectReference of the wrapped Java object instance. (Inherited from IJavaPeerable) |
Methods
| Clear() |
Removes all of the mappings from this map (optional operation). (Inherited from IMap) |
| Compute(Object, IBiFunction) |
Attempts to compute a mapping for the specified key and its current
mapped value (or |
| ComputeIfAbsent(Object, IFunction) |
If the specified key is not already associated with a value (or is mapped
to |
| ComputeIfPresent(Object, IBiFunction) |
If the value for the specified key is present and non-null, attempts to compute a new mapping given the key and its current mapped value. (Inherited from IMap) |
| ContainsKey(Object) |
Returns |
| ContainsValue(Object) |
Returns |
| Disposed() |
Called when the instance has been disposed. (Inherited from IJavaPeerable) |
| DisposeUnlessReferenced() |
If there are no outstanding references to this instance, then
calls |
| EntrySet() |
Returns a |
| Equals(Object) |
Compares the specified object with this map for equality. (Inherited from IMap) |
| Finalized() |
Called when the instance has been finalized. (Inherited from IJavaPeerable) |
| ForEach(IBiConsumer) |
Performs the given action for each entry in this map until all entries have been processed or the action throws an exception. (Inherited from IMap) |
| Get(Object) |
Returns the value to which the specified key is mapped,
or |
| GetHashCode() |
Returns the hash code value for this map. (Inherited from IMap) |
| GetOrDefault(Object, Object) |
Returns the value to which the specified key is mapped, or
|
| KeySet() |
Returns a |
| Merge(Object, Object, IBiFunction) |
If the specified key is not already associated with a value or is associated with null, associates it with the given non-null value. (Inherited from IMap) |
| Put(Object, Object) |
Associates the specified value with the specified key in this map (optional operation). (Inherited from IMap) |
| PutAll(IDictionary) |
Copies all of the mappings from the specified map to this map (optional operation). (Inherited from IMap) |
| PutIfAbsent(Object, Object) |
If the specified key is not already associated with a value, associates it with the given value. |
| Remove(Object, Object) |
Removes the entry for a key only if currently mapped to a given value. |
| Remove(Object) |
Removes the mapping for a key from this map if it is present (optional operation). (Inherited from IMap) |
| Replace(Object, Object, Object) |
Replaces the entry for a key only if currently mapped to a given value. |
| Replace(Object, Object) |
Replaces the entry for a key only if currently mapped to some value. |
| ReplaceAll(IBiFunction) |
Replaces each entry's value with the result of invoking the given function on that entry until all entries have been processed or the function throws an exception. (Inherited from IMap) |
| SetJniIdentityHashCode(Int32) |
Set the value returned by |
| SetJniManagedPeerState(JniManagedPeerStates) | (Inherited from IJavaPeerable) |
| SetPeerReference(JniObjectReference) |
Set the value returned by |
| Size() |
Returns the number of key-value mappings in this map. (Inherited from IMap) |
| UnregisterFromRuntime() |
Unregister this instance so that the runtime will not return it from future Java.Interop.JniRuntime+JniValueManager.PeekValue invocations. (Inherited from IJavaPeerable) |
| Values() |
Returns a |
Explicit Interface Implementations
| IMap.Compute(Object, IBiFunction) |
To be added |
| IMap.ComputeIfAbsent(Object, IFunction) |
To be added |
| IMap.ComputeIfPresent(Object, IBiFunction) |
To be added |
| IMap.ForEach(IBiConsumer) |
To be added |
| IMap.GetOrDefault(Object, Object) |
To be added |
| IMap.Merge(Object, Object, IBiFunction) |
To be added |
| IMap.ReplaceAll(IBiFunction) |
To be added |
Extension Methods
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| GetJniTypeName(IJavaPeerable) | |