org.basex.core.cmd

Class AlterDB

java.lang.Object

org.basex.core.Progress

org.basex.core.Command

org.basex.core.cmd.ACreate

org.basex.core.cmd.AlterDB

public final class AlterDB
extends ACreate

Evaluates the 'alter database' command and renames a database.

Author:

BaseX Team 2005-12, BSD License, Christian Gruen

Field Summary

Fields inherited from class org.basex.core.Command

args, context, DATAREF, in, mprop, out, perf, prop, STANDARD

Fields inherited from class org.basex.core.Progress

updating

Constructor Summary

Constructors

Constructor and Description
AlterDB(java.lang.String db, java.lang.String name) Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	alter(java.lang.String source, java.lang.String target, Context ctx) Renames the specified database.
void	build(CommandBuilder cb) Builds a string representation from the command.
boolean	newData(Context ctx) Closes an open data reference and returns true if this command will change the Context.data reference.
java.lang.String	pinned(Context ctx) Checks if the database to be updated is opened (pinned) by a process in another JVM.
protected boolean	run() Executes the command and serializes the result (internal call).

Methods inherited from class org.basex.core.cmd.ACreate

build, cache, create, drop, pinned, startUpdate, stoppable, stopUpdate, supportsProg

Methods inherited from class org.basex.core.Command

close, error, execute, execute, getOption, getOption, info, info, result, run, setInput, setInput, toString, updated, updating

Methods inherited from class org.basex.core.Progress

abort, checkStop, det, detail, prog, progress, progress, startTimeout, stop, stopTimeout, tit, title

Methods inherited from class java.lang.Object

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

Constructor Detail

AlterDB

public AlterDB(java.lang.String db,
       java.lang.String name)

Default constructor.

Parameters:

db - database

name - new name

Method Detail

run

protected boolean run()

Description copied from class: Command

Executes the command and serializes the result (internal call).

Specified by:

run in class Command

Returns:

success of operation

pinned

public java.lang.String pinned(Context ctx)

Description copied from class: Command

Checks if the database to be updated is opened (pinned) by a process in another JVM.

Overrides:

pinned in class Command

Parameters:

ctx - database context

Returns:

name of pinned database

alter

public static boolean alter(java.lang.String source,
            java.lang.String target,
            Context ctx)

Renames the specified database.

Parameters:

source - name of the existing database

target - new database name

ctx - database context

Returns:

success flag

newData

public boolean newData(Context ctx)

Description copied from class: Command

Closes an open data reference and returns true if this command will change the Context.data reference. This method is required by the progress dialog in the frontend.

Overrides:

newData in class ACreate

Parameters:

ctx - database context

Returns:

result of check

build

public void build(CommandBuilder cb)

Description copied from class: Command

Builds a string representation from the command. This string must be correctly built, as commands are sent to the server as strings.

Overrides:

build in class Command

Parameters:

cb - command builder