ShardAllocatorManager (Red Hat Data Grid 7.3.9 API)

All Known Implementing Classes:

ShardAllocationManagerImpl
```
public interface ShardAllocatorManager
```
ShardAllocatorManager is responsible for the mapping between index shards and Infinispan segments for all indexes in a cache.

Since:

9.0

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Address`	`getOwner(String shardId)`
`String`	`getShardFromKey(Object key)`
`String`	`getShardFromSegment(int segment)`
`Set<String>`	`getShards()`
`Set<String>`	`getShardsForModification(Address address)`
`void`	`initialize(int numberOfShards, int numSegments)`	Initializes the `ShardAllocatorManager` with the configured number of segments and shards.
`boolean`	`isOwnershipChanged(TopologyChangedEvent<?,?> tce, String shardId)`

- Method Detail
  - getShardFromSegment
```
String getShardFromSegment(int segment)
```
    Returns:
    
    the shard name for a certain segment.
  - getShards
```
Set<String> getShards()
```
    Returns:
    
    the list of all shards available.
  - getShardsForModification
```
Set<String> getShardsForModification(Address address)
```
    Returns:
    
    the list of shards used to do modifications to the index for a given address.
  - isOwnershipChanged
```
boolean isOwnershipChanged(TopologyChangedEvent<?,?> tce,
                           String shardId)
```
    Returns:
    
    Owner of an index shard given a certain ConsistentHash.
  - getOwner
```
Address getOwner(String shardId)
```
    Returns:
    
    Owner of an index shard.
  - getShardFromKey
```
String getShardFromKey(Object key)
```
  - initialize
```
void initialize(int numberOfShards,
                int numSegments)
```
    Initializes the ShardAllocatorManager with the configured number of segments and shards.