simpledb.materialize
Class TempTable

java.lang.Object
  simpledb.materialize.TempTable

public class TempTable
extends java.lang.Object

A class that creates temporary tables. A temporary table is not registered in the catalog. The class therefore has a method getTableInfo to return the table's metadata.

Author:

Edward Sciore

Constructor Summary

TempTable(Schema sch, Transaction tx)
Allocates a name for for a new temporary table having the specified schema.

Method Summary

TableInfo	getTableInfo() Return the table's metadata.
UpdateScan	open() Opens a table scan for the temporary table.

Methods inherited from class java.lang.Object

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

Constructor Detail

TempTable

public TempTable(Schema sch,
                 Transaction tx)

Allocates a name for for a new temporary table having the specified schema.

Parameters:

sch - the new table's schema

tx - the calling transaction

Method Detail

open

public UpdateScan open()

Opens a table scan for the temporary table.

getTableInfo

public TableInfo getTableInfo()

Return the table's metadata.

Returns:

the table's metadata