| Package | Description | 
|---|---|
| com.hazelcast.spi.discovery | 
 This package contains the public SPI for vendors and users to implement their
 custom node / IP discovery strategy. 
 | 
| com.hazelcast.spi.discovery.multicast | 
 Contains the hazelcast multicast plugin classes 
 | 
| com.hazelcast.spi.partitiongroup | 
 This package contains the basic SPI for the Partition Group SPI to define
 or configure how Hazelcast will configure and distribute backups in the
 cluster. 
 | 
| Class and Description | 
|---|
| PartitionGroupStrategy
 A  
PartitionGroupStrategy implementation defines a strategy
 how backup groups are designed. | 
| Class and Description | 
|---|
| PartitionGroupStrategy
 A  
PartitionGroupStrategy implementation defines a strategy
 how backup groups are designed. | 
| Class and Description | 
|---|
| MemberGroup
 A collection of members to which a single partition replica can be assigned. 
 | 
| PartitionGroupMetaData
 This class contains the definition of known Discovery SPI metadata to support automatic
 generation of zone aware and node aware backup strategies. 
 | 
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