net.sf.farrago.ddl
Class DdlRebuildTableStmt

java.lang.Object
  net.sf.farrago.ddl.DdlStmt
      net.sf.farrago.ddl.DdlReloadTableStmt
          net.sf.farrago.ddl.DdlRebuildTableStmt

All Implemented Interfaces:

DdlMultipleTransactionStmt, FarragoSessionDdlStmt

public class DdlRebuildTableStmt
extends DdlReloadTableStmt

DdlRebuildTableStmt represents an ALTER TABLE ... REBUILD statement. The statement compacts data stored in a table's indexes by removing deleted entries.

Note: Although DdlRebuildTableStmt is an ALTER statement, it does not extend DdlAlterStmt. This avoids the complexity of having subclasses of DdlAlterStmt which may or may not also be implementations of DdlMultipleTransactionStmt.

Version:

$Id: //open/dev/farrago/src/net/sf/farrago/ddl/DdlRebuildTableStmt.java#14 $

Author:

John Pham

Constructor Summary

DdlRebuildTableStmt(CwmTable table)
Constructs a DdlRebuildTableStmt.

Method Summary

protected String

getReloadDml(SqlPrettyWriter writer) Generates the query: "insert into T select * from T"

Methods inherited from class net.sf.farrago.ddl.DdlReloadTableStmt

completeAfterExecuteUnlocked, completeRequiresWriteTxn, executeUnlocked, getOldTableStructureForIndexMap, getTable, prepForExecuteUnlocked, recoverFromFailure, setRecoveryRef, shouldRebuildIndexes, visit

Methods inherited from class net.sf.farrago.ddl.DdlStmt

getModelElement, isDropRestricted, postCommit, postExecute, preExecute, preValidate, requiresCommit, runsAsDml

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.farrago.session.FarragoSessionDdlStmt

getModelElement, isDropRestricted, postCommit, postExecute, preExecute, preValidate, requiresCommit, runsAsDml

Constructor Detail

DdlRebuildTableStmt

public DdlRebuildTableStmt(CwmTable table)

Constructs a DdlRebuildTableStmt.

Method Detail

getReloadDml

protected String getReloadDml(SqlPrettyWriter writer)

Generates the query: "insert into T select * from T"

Specified by:

getReloadDml in class DdlReloadTableStmt

Parameters:

writer - writer to uses for generating SQL

Returns:

DML statement which accomplishes reload