org.apache.hadoop.hive.metastore

Class ObjectStore.GetHelper<T>

java.lang.Object

org.apache.hadoop.hive.metastore.ObjectStore.GetHelper<T>

Direct Known Subclasses:

ObjectStore.GetDbHelper

Enclosing class:

ObjectStore

public abstract class ObjectStore.GetHelper<T>
extends Object

Helper class for getting stuff w/transaction, direct SQL, perf logging, etc.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	catName
protected String	dbName
protected List<String>	partitionFields
protected T	results
protected String	tblName

Constructor Summary

Constructors

Constructor and Description
GetHelper(String catalogName, String dbName, String tblName, boolean allowSql, boolean allowJdo)
GetHelper(String catalogName, String dbName, String tblName, List<String> fields, boolean allowSql, boolean allowJdo)

Method Summary

Modifier and Type	Method and Description
protected boolean	canUseDirectSql(ObjectStore.GetHelper<T> ctx)
protected abstract String	describeResult()
protected abstract T	getJdoResult(ObjectStore.GetHelper<T> ctx)
protected abstract T	getSqlResult(ObjectStore.GetHelper<T> ctx)
Table	getTable()
T	run(boolean initTable)

Methods inherited from class java.lang.Object

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

Field Detail

partitionFields

protected final List<String> partitionFields

catName

protected final String catName

dbName

protected final String dbName

tblName

protected final String tblName

results

protected T results

Constructor Detail

GetHelper

public GetHelper(String catalogName,
                 String dbName,
                 String tblName,
                 boolean allowSql,
                 boolean allowJdo)
          throws MetaException

Throws:

MetaException

GetHelper

public GetHelper(String catalogName,
                 String dbName,
                 String tblName,
                 List<String> fields,
                 boolean allowSql,
                 boolean allowJdo)
          throws MetaException

Throws:

MetaException

Method Detail

canUseDirectSql

protected boolean canUseDirectSql(ObjectStore.GetHelper<T> ctx)
                           throws MetaException

Throws:

MetaException

describeResult

protected abstract String describeResult()

getSqlResult

protected abstract T getSqlResult(ObjectStore.GetHelper<T> ctx)
                           throws MetaException

Throws:

MetaException

getJdoResult

protected abstract T getJdoResult(ObjectStore.GetHelper<T> ctx)
                           throws MetaException,
                                  NoSuchObjectException,
                                  InvalidObjectException

Throws:

MetaException

NoSuchObjectException

InvalidObjectException

run

public T run(boolean initTable)
      throws MetaException,
             NoSuchObjectException

Throws:

MetaException

NoSuchObjectException

getTable

public Table getTable()