UpdaterProcessor Class |
14c (14.1.1.0)
F23534-02
UpdaterProcessor is an IEntryProcessor
implementations that updates an attribute of an object cached in an
IInvocableCache.
Inheritance HierarchyNamespace: Tangosol.Util.Processor
Assembly: Coherence (in Coherence.dll) Version: 14.1.1.14 (14.1.1.14)
SyntaxC#
public class UpdaterProcessor : AbstractProcessor, IPortableObject
The UpdaterProcessor type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | UpdaterProcessor |
Default constructor.
|
| UpdaterProcessor(String, Object) |
Construct an UpdaterProcessor for a given member name.
|
| UpdaterProcessor(IValueUpdater, Object) |
Construct an UpdaterProcessor based on the specified
IValueUpdater.
|
Methods| Name | Description | |
|---|---|---|
| Equals |
Compare the UpdaterProcessor with another object to
determine equality.
(Overrides ObjectEquals(Object).) |
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode |
Determine a hash value for the UpdaterProcessor object
according to the general GetHashCode
contract.
(Overrides ObjectGetHashCode.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| Process |
Process an IInvocableCacheEntry.
(Overrides AbstractProcessorProcess(IInvocableCacheEntry).) |
| ProcessAll |
Process a collection of IInvocableCacheEntry
objects.
(Inherited from AbstractProcessor.) |
| ReadExternal |
Restore the contents of a user type instance by reading its state
using the specified IPofReader object.
|
| ToString |
Return a human-readable description for this
UpdaterProcessor.
(Overrides ObjectToString.) |
| WriteExternal |
Save the contents of a POF user type instance by writing its
state using the specified IPofWriter object.
|
Fields| Name | Description | |
|---|---|---|
 | m_updater |
The underlying IValueUpdater.
|
| m_value |
A value to update the entry's value with.
|
Remarks
A common usage pattern is:
cache.Invoke(Key, new UpdaterProcessor(updater, value));
which is functionally equivalent to the following operation:
Object target = cache.Get(Key);
updater.update(target, value);
cache.Put(Key, target);
The major difference is that for clustered caches using the
UpdaterProcessor allows avoiding explicit concurrency
control and could significantly reduce the amount of network traffic.
See Also