PartitionMetahook (Lens 2.1.0-beta-incubating API)

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org.apache.lens.cube.metadata
Interface PartitionMetahook

All Known Implementing Classes:: DBStorage, HDFSStorage, Storage

public interface PartitionMetahook

Method Summary

void commitAddPartitions(List<StoragePartitionDesc> storagePartitionDesc)
          Called after successfully adding the partition

void commitDropPartition(String storageTableName, List<String> partVals)
          Called after successfully droping the partition

void preAddPartitions(List<StoragePartitionDesc> storagePartitionDesc)
          Called before calling add partition

void preDropPartition(String storageTableName, List<String> partVals)
          Called before calling drop partition

void rollbackAddPartitions(List<StoragePartitionDesc> storagePartitionDesc)
          Called if add partition fails.

void rollbackDropPartition(String storageTableName, List<String> partVals)
          Called if drop partition fails.

Method Summary
`void`	`commitAddPartitions(List<StoragePartitionDesc> storagePartitionDesc)` Called after successfully adding the partition
`void`	`commitDropPartition(String storageTableName, List<String> partVals)` Called after successfully droping the partition
`void`	`preAddPartitions(List<StoragePartitionDesc> storagePartitionDesc)` Called before calling add partition
`void`	`preDropPartition(String storageTableName, List<String> partVals)` Called before calling drop partition
`void`	`rollbackAddPartitions(List<StoragePartitionDesc> storagePartitionDesc)` Called if add partition fails.
`void`	`rollbackDropPartition(String storageTableName, List<String> partVals)` Called if drop partition fails.

Method Detail

preAddPartitions

void preAddPartitions(List<StoragePartitionDesc> storagePartitionDesc)
                      throws org.apache.hadoop.hive.ql.metadata.HiveException

Called before calling add partition

Parameters:: storagePartitionDesc -
Throws:: org.apache.hadoop.hive.ql.metadata.HiveException

commitAddPartitions

void commitAddPartitions(List<StoragePartitionDesc> storagePartitionDesc)
                         throws org.apache.hadoop.hive.ql.metadata.HiveException

Called after successfully adding the partition

Parameters:: storagePartitionDesc -
Throws:: org.apache.hadoop.hive.ql.metadata.HiveException

rollbackAddPartitions

void rollbackAddPartitions(List<StoragePartitionDesc> storagePartitionDesc)
                           throws org.apache.hadoop.hive.ql.metadata.HiveException

Called if add partition fails.

Parameters:: storagePartitionDesc -
Throws:: org.apache.hadoop.hive.ql.metadata.HiveException

preDropPartition

void preDropPartition(String storageTableName,
                      List<String> partVals)
                      throws org.apache.hadoop.hive.ql.metadata.HiveException

Called before calling drop partition

Parameters:: storageTableName -; partVals -
Throws:: org.apache.hadoop.hive.ql.metadata.HiveException

commitDropPartition

void commitDropPartition(String storageTableName,
                         List<String> partVals)
                         throws org.apache.hadoop.hive.ql.metadata.HiveException

Called after successfully droping the partition

Parameters:: storageTableName -; partVals -
Throws:: org.apache.hadoop.hive.ql.metadata.HiveException

rollbackDropPartition

void rollbackDropPartition(String storageTableName,
                           List<String> partVals)
                           throws org.apache.hadoop.hive.ql.metadata.HiveException

Called if drop partition fails.

Parameters:: storageTableName -; partVals -
Throws:: org.apache.hadoop.hive.ql.metadata.HiveException