Package org.basex.query.up.primitives.db

Class DBUpdate

java.lang.Object

org.basex.query.up.primitives.Update

org.basex.query.up.primitives.DataUpdate

org.basex.query.up.primitives.db.DBUpdate

All Implemented Interfaces:

Comparable<DBUpdate>

Direct Known Subclasses:

DBAdd, DBDelete, DBFlush, DBOptimize, DBRename, DBStore, Put

public abstract class DBUpdate
extends DataUpdate
implements Comparable<DBUpdate>

Update that operates on a database but is not an update primitive. This task is carried out after all updates on the database have been made effective in the order of the UpdateType. Hence, changes made during a snapshot will be reflected by this task.

Author:

BaseX Team 2005-21, BSD License, Lukas Kircher

Field Summary

Fields inherited from class org.basex.query.up.primitives.DataUpdate

data

Fields inherited from class org.basex.query.up.primitives.Update

info, type

Method Summary

Modifier and Type	Method	Description
abstract void	apply()	Applies this operation.
final int	compareTo(DBUpdate o)
abstract void	prepare()	Prepares this operation.

Methods inherited from class org.basex.query.up.primitives.DataUpdate

data

Methods inherited from class org.basex.query.up.primitives.Update

info, merge, size

Methods inherited from class java.lang.Object

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

Method Details

compareTo

public final int compareTo(DBUpdate o)

Specified by:

compareTo in interface Comparable<DBUpdate>

apply

public abstract void apply()
                    throws QueryException

Applies this operation.

Throws:

QueryException - exception

prepare

public abstract void prepare()
                      throws QueryException

Prepares this operation.

Throws:

QueryException - exception