| Package | Description | 
|---|---|
| com.hazelcast.map.impl | Contains implementation specific classes of  com.hazelcast.mappackage. | 
| com.hazelcast.map.impl.operation | Package for map operations. | 
| com.hazelcast.map.impl.query | |
| com.hazelcast.map.impl.querycache.subscriber.operation | This package contains Enterprise specific operations for  QueryCache. | 
| com.hazelcast.map.impl.tx | Contains implementation classes for  TransactionalMap | 
| Class and Description | 
|---|
| MapOperationProvider Provides  InMemoryFormatspecific
 operations forIMap. | 
| Class and Description | 
|---|
| AbstractMapOperationFactory | 
| BasePutOperation | 
| BaseRemoveOperation | 
| LockAwareOperation | 
| MapNearCacheStateHolder Holder for near-cache metadata | 
| MapOperation | 
| MapOperationProvider Provides  InMemoryFormatspecific
 operations forIMap. | 
| MapReplicationOperation Replicates all IMap-states of this partition to a replica partition. | 
| MapReplicationStateHolder Holder for raw IMap key-value pairs and their metadata. | 
| MultipleEntryBackupOperation | 
| MultipleEntryOperation | 
| MutatingKeyBasedMapOperation | 
| PartitionWideEntryBackupOperation | 
| PartitionWideEntryOperation GOTCHA : This operation does NOT load missing keys from map-store for now. | 
| ReadonlyKeyBasedMapOperation Abstract  MapOperationthat serves as based for readonly operations. | 
| WriteBehindStateHolder Holder for write-behind-specific state. | 
| Class and Description | 
|---|
| MapOperation | 
| Class and Description | 
|---|
| MapOperation | 
| Class and Description | 
|---|
| BasePutOperation | 
| BaseRemoveOperation | 
| LockAwareOperation | 
| MapOperation | 
| MapOperationProvider Provides  InMemoryFormatspecific
 operations forIMap. | 
| MutatingKeyBasedMapOperation | 
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