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*
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package org.apache.drill.exec.store;
import java.util.List;
/**
* Exposes partition information for a particular schema.
*
* For a more explanation of the current use of this interface see
* the documentation in {@link PartitionExplorer}.
*/
public interface SchemaPartitionExplorer {
/**
* Get a list of sub-partitions of a particular table and the partitions
* specified by partition columns and values. Individual storage
* plugins will assign specific meaning to the parameters and return
* values.
*
* For more info see docs in {@link PartitionExplorer}.
*
* @param partitionColumns a list of partitions to match
* @param partitionValues list of values of each partition (corresponding
* to the partition column list)
* @return list of sub-partitions, will be empty if a there is no further
* level of sub-partitioning below, i.e. hit a leaf partition
* @throws PartitionNotFoundException when the partition does not exist in
* the given workspace
*/
Iterable<String> getSubPartitions(String table,
List<String> partitionColumns,
List<String> partitionValues) throws PartitionNotFoundException;
}