org.apache.hadoop.hive.ql.metadata

Class TableIterable

java.lang.Object

org.apache.hadoop.hive.ql.metadata.TableIterable

All Implemented Interfaces:

Iterable<org.apache.hadoop.hive.metastore.api.Table>

public class TableIterable
extends Object
implements Iterable<org.apache.hadoop.hive.metastore.api.Table>

Use this to get Table objects for a table list. It provides an iterator to on the resulting Table objects. It batches the calls to IMetaStoreClient.getTableObjectsByName to avoid OOM issues in HS2 (with embedded metastore) or MetaStore server (if HS2 is using remote metastore).

Constructor Summary

Constructors

Constructor and Description
TableIterable(IMetaStoreClient msc, String dbname, List<String> tableNames, int batch_size) Primary constructor that fetches all tables in a given msc, given a Hive object,a db name and a table name list

Method Summary

Modifier and Type	Method and Description
Iterator<org.apache.hadoop.hive.metastore.api.Table>	iterator()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

TableIterable

public TableIterable(IMetaStoreClient msc,
                     String dbname,
                     List<String> tableNames,
                     int batch_size)
              throws org.apache.thrift.TException

Primary constructor that fetches all tables in a given msc, given a Hive object,a db name and a table name list

Throws:

org.apache.thrift.TException

Method Detail

iterator

public Iterator<org.apache.hadoop.hive.metastore.api.Table> iterator()

Specified by:

iterator in interface Iterable<org.apache.hadoop.hive.metastore.api.Table>