| IGFDelta Interface |
This interface is used for delta propagation.
To use delta propagation, an application class must implement interfaces IGFDelta as well as IGFSerializable.
The IGFDelta interface methods HasDelta( ), ToDelta( ) and FromDelta( ) must be implemented by the class, as these methods are used by GemFire
to detect the presence of delta in an object, to serialize the delta, and to apply a serialized delta to an existing object
of the class.
If a customized cloning method is required, the class must also implement the interface System.ICloneable.
To use cloning in delta propagation for a region, the region attribute for cloning must be enabled.
Namespace: GemStone.GemFire.Cache.Generic
Assembly: Gemstone.Gemfire.Cache (in Gemstone.Gemfire.Cache.dll) Version: 9.0.6.18
SyntaxThe IGFDelta type exposes the following members.
Methods| Name | Description | |
|---|---|---|
 | FromDelta |
Reads in delta information to this object in a user-defined format. This is
invoked on an existing application object after GemFire determines the
presence of delta in DataInput instance.
|
| HasDelta | HasDelta( ) is invoked by GemFire during Region.Put( ICacheableKey, IGFSerializable ) to determine if the object contains a delta.
If HasDelta( ) returns true, the delta in the object is serialized by invoking ToDelta( DataOutput ).
If HasDelta( ) returns false, the object is serialized by invoking IGFSerializable.ToData( DataOutput ).
|
| ToDelta |
Writes out delta information to out in a user-defined format. This is
invoked on an application object after GemFire determines the presence
of delta in it by calling HasDelta() on the object.
|
See Also