org.basex.core.cmd

Class Open

java.lang.Object

org.basex.core.Progress

org.basex.core.Command

org.basex.core.cmd.Open

public final class Open
extends Command

Evaluates the 'open' command and opens 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
Open(java.lang.String path) Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	newData(Context ctx) Closes an open data reference and returns true if this command will change the Context.data reference.
static Data	open(java.lang.String name, Context ctx) Opens the specified database.
protected boolean	run() Executes the command and serializes the result (internal call).

Methods inherited from class org.basex.core.Command

build, close, error, execute, execute, getOption, getOption, info, info, pinned, result, run, setInput, setInput, stoppable, supportsProg, 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

Open

public Open(java.lang.String path)

Default constructor.

Parameters:

path - database name and optional path

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

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 Command

Parameters:

ctx - database context

Returns:

result of check

open

public static Data open(java.lang.String name,
        Context ctx)
                 throws java.io.IOException

Opens the specified database.

Parameters:

name - name of database

ctx - database context

Returns:

data reference

Throws:

java.io.IOException - I/O exception