Package org.apache.hadoop.hive.ql.metadata

Interface Summary

Interface	Description
HiveStorageHandler	HiveStorageHandler defines a pluggable interface for adding new storage handlers to Hive.
HiveStoragePredicateHandler	HiveStoragePredicateHandler is an optional companion to HiveStorageHandler; it should only be implemented by handlers which support decomposition of predicates being pushed down into table scans.
InputEstimator
StorageHandlerInfo	StorageHandlerInfo is a marker interface used to provide runtime information associated with a storage handler.

Class Summary

Class	Description
CheckConstraint	CheckConstraintInfo is a metadata structure containing the Check constraints associated with a table.
CheckJDOException	Check if this is a javax.jdo.JDODataStoreException
CheckResult	Result class used by the HiveMetaStoreChecker.
CheckResult.PartitionResult	A basic description of a partition that is missing from either the fs or the ms.
DefaultConstraint	DefaultConstraintInfo is a metadata structure containing the default constraints associated with a table.
DefaultStorageHandler	DefaultStorageHandler is an implementation of HiveStorageHandler which supplies the standard defaults for all options.
Dimension	Hive consists of a fixed, well defined set of Dimensions.
DummyPartition	A Hive Table Partition: is a fundamental storage unit within a Table.
ForeignKeyInfo	ForeignKeyInfo is a metadata structure containing the foreign keys associated with a table.
Hive	This class has functions that implement meta data/DDL operations using calls to the metastore.
HiveMaterializedViewsRegistry	Registry for materialized views.
HiveMetaStoreChecker	Verify that the information in the metastore matches what is on the filesystem.
HiveStoragePredicateHandler.DecomposedPredicate	Struct class for returning multiple values from decomposePredicate.
HiveUtils	General collection of helper functions.
InputEstimator.Estimation
JarUtils	Utilities to ship containing jars to the backend.
NotNullConstraint	NotNullConstraintInfo is a metadata structure containing the not null constraints associated with a table.
Partition	A Hive Table Partition: is a fundamental storage unit within a Table.
PartitionIterable	PartitionIterable - effectively a lazy Iterable Sometimes, we have a need for iterating through a list of partitions, but the list of partitions can be too big to fetch as a single object.
PrimaryKeyInfo	PrimaryKeyInfo is a metadata structure containing the primary key associated with a table.
RandomDimension	A random dimension is an abstract dimension.
Sample	A sample defines a subset of data based on sampling on a given dimension.
SessionHiveMetaStoreClient	todo: This need review re: thread safety.
SessionHiveMetaStoreClient.TempTable	This stores partition information for a temp table.
Table	A Hive Table: is a fundamental unit of data in Hive that shares a common schema/DDL.
TableIterable	Use this to get Table objects for a table list.
UniqueConstraint	UniqueConstraintInfo is a metadata structure containing the unique constraints associated with a table.

Enum Summary

Enum	Description
VirtualColumn

Exception Summary

Exception	Description
AuthorizationException
Hive.SchemaException
HiveException	Generic exception class for Hive.
HiveFatalException
InvalidTableException	Generic exception class for Hive.