Package com.gemstone.gemfire.cache.operations

Contains the OperationContext interface that encapsulates an operation and the data associated with it for both the pre-operation and post-operation cases.

See:
Description

Class Summary

CloseCQOperationContext	Encapsulates a OperationContext.OperationCode.CLOSE_CQ operation for the pre-operation case.
ContainsKeyOperationContext	Encapsulates a OperationContext.OperationCode.CONTAINS_KEY region operation having the key object for the pre-operation case.
DestroyOperationContext	Encapsulates a OperationContext.OperationCode.DESTROY region operation having the key object for both the pre-operation case and for post-operation updates.
ExecuteCQOperationContext	Encapsulates a continuous query registeration operation for both the pre-operation and post-operation cases.
GetOperationContext	Encapsulates a OperationContext.OperationCode.GET region operation having the key object for the pre-operation case and both key, value objects for the post-operation case.
InterestType	Enumeration for various interest types supported by GemFire.
InvalidateOperationContext	Encapsulates a OperationContext.OperationCode.INVALIDATE region operation having the key object for both the pre-operation case and for post-operation updates.
KeySetOperationContext	Encapsulates a OperationContext.OperationCode.KEY_SET operation for both the pre-operation and post-operation cases.
OperationContext	Encapsulates a cache operation and the data associated with it for both the pre-operation and post-operation cases.
OperationContext.OperationCode	Enumeration for various cache operations.
PutOperationContext	Encapsulates an OperationContext.OperationCode.PUT region operation having both key and value objects for for both the pre-operation case and for post-operation updates.
QueryOperationContext	Encapsulates a cache query operation for both the pre-operation and post-operation cases.
RegionClearOperationContext	Encapsulates a OperationContext.OperationCode.REGION_CLEAR operation for both the pre-operation and post-operation cases.
RegionCreateOperationContext	Encapsulates a OperationContext.OperationCode.REGION_CREATE operation for both the pre-operation and post-operation cases.
RegionDestroyOperationContext	Encapsulates a OperationContext.OperationCode.REGION_DESTROY operation for both the pre-operation and post-operation cases.
RegisterInterestOperationContext	Encapsulates a OperationContext.OperationCode.REGISTER_INTEREST region operation for the pre-operation case.
StopCQOperationContext	Encapsulates a OperationContext.OperationCode.STOP_CQ operation for the pre-operation case.
UnregisterInterestOperationContext	Encapsulates a OperationContext.OperationCode.REGISTER_INTEREST region operation for the pre-operation case.

Package com.gemstone.gemfire.cache.operations Description

Contains the OperationContext interface that encapsulates an operation and the data associated with it for both the pre-operation and post-operation cases. Also contains implementations of the OperationContext interface for the various kinds of cache operations. These include:

• KeyOperationContext: this is an implementation for operations that require a key for the operation. It provides a getKey method to obtain the key. Also provided are setCallbackArg and getCallbackArg methods that can be used to set/get an optional callback argument. The operations returned as KeyOperationContext are OperationContext.OperationCode.DESTROY and OperationContext.OperationCode.CONTAINS_KEY.
• KeyValueOperationContext: this is an implementation for operations that require both key and value for the operation. It extends the KeyOperationContext interface providing getValue and setValue methods in addition to those provided by the KeyOperationContext class. The operations returned as KeyValueOperationContext are OperationContext.OperationCode.GET and OperationContext.OperationCode.PUT. For the GET operation this is used to both the pre and post operation cases.
• InterestOperationContext: this is an implementation for register and unregister of interest in a region. It defines a sub-class InterestType that encapsulates the different kinds of interest viz. KEY, LIST, REGULAR_EXPRESSION, FILTER_CLASS and OQL_QUERY. It provides getInterestType method to get the interest type, getInterestResultPolicy method to get the InterestResultPolicy of the request, isUnregister method that returns true if this is an unregister operation, and getKey/setKey methods to get/set the key being registered. The key may be a single key, a list of keys, or a regular expression string or an OQL Query.
• QueryOperationContext: this is an implementation for a cache query operation for both the pre and post operation cases. It provides getQuery to get the query string as well as a modifyQuery method to be able to modify it. A utility getRegionNames method is also provided to obtain the list of regions as referenced by the query string. For the results in the post operation phase, getQueryResult allows to get the result and setQueryResult allows modification of the result.
• RegionOperationContext: this encapsulates the region level operation for the pre operation case. It provides getCallbackArg and setCallbackArg methods to get/set the optionally callback argument. The operations returned as RegionOperationContext are OperationContext.OperationCode.REGION_CLEAR and OperationContext.OperationCode.REGION_DESTROY.