Package com.linkedin.alpini.router.api

Interface PartitionFinder<K>

All Known Implementing Classes:

VenicePartitionFinder

public interface PartitionFinder<K>

Provides methods to find the partition name for a piece of data.

Method Summary

Modifier and Type	Method	Description
String	findPartitionName(String resourceName, K partitionKey)	Returns the name of partition for the given key within the given table.
int	findPartitionNumber(K partitionKey, int numPartitions, String storeName, int versionNumber)	Venice-specific API for finding the partition number without the added overhead of parsing a partition name.
List<String>	getAllPartitionNames(String resourceName)
int	getNumPartitions(String resourceName)	Returns the number of partitions for a given db

Method Details

findPartitionName

@Nonnull
String findPartitionName(@Nonnull
 String resourceName,
 @Nonnull
 K partitionKey)
                  throws RouterException

Returns the name of partition for the given key within the given table.

Parameters:

resourceName - name of the database

partitionKey - partition key field for the data

Returns:

name of the partition

Throws:

RouterException - if there was an error

getAllPartitionNames

@Nonnull
List<String> getAllPartitionNames(@Nonnull
 String resourceName)
                           throws RouterException

Throws:

RouterException

getNumPartitions

int getNumPartitions(@Nonnull
 String resourceName)
              throws RouterException

Returns the number of partitions for a given db

Parameters:

resourceName - name of the database

Throws:

RouterException

findPartitionNumber

int findPartitionNumber(@Nonnull
 K partitionKey,
 int numPartitions,
 String storeName,
 int versionNumber)
                 throws RouterException

Venice-specific API for finding the partition number without the added overhead of parsing a partition name.

Throws:

RouterException