com.cloudera.impala.catalog.TableLoader Class Reference

Collaboration diagram for com.cloudera.impala.catalog.TableLoader:

Public Member Functions
	TableLoader (CatalogServiceCatalog catalog)
Table	load (Db db, String tblName, Table cachedValue)

Private Attributes
final CatalogServiceCatalog	catalog_

Static Private Attributes
static final Logger	LOG = Logger.getLogger(TableLoader.class)
static EnumSet< TableType >	SUPPORTED_TABLE_TYPES
static final Object	metastoreAccessLock_ = new Object()

Detailed Description

Class that implements the logic for how a table's metadata should be loaded from the Hive Metastore / HDFS / etc.

Definition at line 29 of file TableLoader.java.

Constructor & Destructor Documentation

com.cloudera.impala.catalog.TableLoader.TableLoader ( CatalogServiceCatalog  catalog )

inline

Definition at line 43 of file TableLoader.java.

References com.cloudera.impala.catalog.TableLoader.catalog_.

Member Function Documentation

Table com.cloudera.impala.catalog.TableLoader.load ( Db  db, String  tblName, Table  cachedValue  )

inline

Creates the Impala representation of Hive/HBase metadata for one table. Calls load() on the appropriate instance of Table subclass. cachedValue is the existing cache entry and might still contain valid info to help speed up metadata loading. cachedValue is null if there is no existing cache entry (i.e. during fresh load). The catalogVersion parameter specifies what version will be assigned to the newly loaded object. Returns new instance of Table, If there were any errors loading the table metadata an IncompleteTable will be returned that contains details on the error.

Definition at line 58 of file TableLoader.java.

References com.cloudera.impala.catalog.Db.getName(), com.cloudera.impala.catalog.TableLoader.metastoreAccessLock_, and com.cloudera.impala.catalog.TableLoader.SUPPORTED_TABLE_TYPES.

Member Data Documentation

final CatalogServiceCatalog com.cloudera.impala.catalog.TableLoader.catalog_

private

Definition at line 36 of file TableLoader.java.

Referenced by com.cloudera.impala.catalog.TableLoader.TableLoader().

final Logger com.cloudera.impala.catalog.TableLoader.LOG = Logger.getLogger(TableLoader.class)

staticprivate

Definition at line 30 of file TableLoader.java.

final Object com.cloudera.impala.catalog.TableLoader.metastoreAccessLock_ = new Object()

staticprivate

Definition at line 41 of file TableLoader.java.

Referenced by com.cloudera.impala.catalog.TableLoader.load().

EnumSet<TableType> com.cloudera.impala.catalog.TableLoader.SUPPORTED_TABLE_TYPES

staticprivate

Initial value:

= EnumSet.of(
      TableType.EXTERNAL_TABLE, TableType.MANAGED_TABLE, TableType.VIRTUAL_VIEW)

Definition at line 33 of file TableLoader.java.

Referenced by com.cloudera.impala.catalog.TableLoader.load().

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The documentation for this class was generated from the following file:

• fe/src/main/java/com/cloudera/impala/catalog/TableLoader.java