Changes

=Getting StartedIntroduction=

First of allBaseX is very light-weight. It can be run and used in many different ways: # BaseX comes with a [[GUI|Graphical User Interface]] that offers you marvelous tools for managing, querying and visualizing your data and write complex applications in XQuery.# You can start BaseX as [http://basex[Command-Line Client]] if you prefer to work on command-line line and want to do batch processing.org/download download# The [[Database Server] ] is the right choice if you have multiple users or clients, if you don’t require HTTP services, and if you tend to communicate with BaseX from our homepageon a technical level.# The following distributions are available:[[Web Application|HTTP Server]] provides [[REST]] and [[WebDAV]] services. With [[RESTXQ]], complex web applications can be built, and the embedded [[DBA]] application allows you to work with BaseX in the browser. BaseX can also be embedded as a library in your own applications.

Some additional distributions are available from If you want to perform parallel (concurrent) read and write operations on your databases, you must use the download pageclient/server architecture or run BaseX as a web application. You can safely open a database in different JVMs (Java virtual machines) for read-only access,most of which contain only and you will not encounter any problems when reading from and writing to different databases. Update operations from different JVMs to the core package and, optionally, scripts for starting BaseXsame database will be rejected or may even lead to corrupt databases.

BaseX is very light-weight. It For example, if you only read data, you can be easily run and used several clients (standalone, GUI, database clients) in various ways:parallel. If you update your data, however, you shouldn’t use the GUI or a standalone instance at the same time.

* as standalone application, using More details on concurrency can be found on the [[#Standalone|StandaloneTransaction Management]] mode or the [[#Graphical User Interface|Graphical User Interface]],* as [[#Client/Server|Client/Server]] application, or* as [[#HTTP Server|Web Application]], called from a web serverpage.

BaseX is platform-independent and runs on any system that provides an implementation of the [httphttps://www.java.com Java Runtime Environment (JRE)]:

* Since <b>Version 8</b>, works with Java 7 is required.

BaseX has been tested on several numerous platforms, including Windows (2000, XP, Vista, 7, 10, 11), Max Mac OS X (10.x , 11.x),Linux (SuSE xxx, Debian, Redhat, CentOS, Ubuntu) and OpenBSD (4up to 7.x).

===Concurrent Operations=== If you want to perform parallel (concurrent) read and write operations on your databases, you must use the client/server architecture or deploy BaseX as web application. You can safely open a database in different JVMs (Java virtual machines) for read-only access, and you will not encounter any problems when reading from and writing to different databases, but update operations from different JVMs to the same database will be rejected or may even lead to corrupt databases. For example, if you only read data, you can easily run several clients (standalone, GUI, database clients) at the same time. If you update your data, however, you shouldn’t use the GUI or a standalone instance at the same time. More details on concurrency are found in the [[Transaction Management]] article. =Standalone= The [[Standalone Mode]] can be used to execute XQuery expressions or run database commands on command line. It can also be used both for scripting and batch processing your XML data. It can be started as follows (get more information on all [[Command-Line Options#Standalone|Startup Options]]): * Run one of the {{Code|[[Start_Scripts#Linux.2FMac:_basex|basex]]}} or {{Code|[[Start Scripts#Windows: basex.bat|basex.bat]]}} scripts.* Execute the following command: {{Code|java -cp BaseX.jar org.basex.BaseX}}* On ''Windows'': Double click on the '''BaseX''' icon. It is important to remember that the standalone mode does ''not'' interact with the [[#Client/Server|Client/Server]] architecture. =Graphical User Interface= The [[GUI]] is the visual interface to the features of BaseX.It can be used to create new databases, perform queries or interactivelyexplore your XML data. It can be started as follows (get more information on all [[Command-Line Options#GUI|Startup Options]]): * Double click on the {{Code|BaseX.jar}} file.* Run one of the {{Code|[[Start_Scripts#Linux.2FMac:_basex|basexgui]]}} or {{Code|[[Start Scripts#Windows: basex.bat|basexgui.bat]]}} scripts.* Execute the following command: {{Code|java -cp BaseX.jar org.basex.BaseXGUI}}* On ''Windows'': Double click on the '''BaseX GUI''' icon.* For [[Maven]] users: type in {{Code|mvn exec:java}} in the main directory of the {{Code|basex}} project. Note that the GUI does ''not'' interact with the client/server architecture. =Client/Server= ==Server== The [[Database Server]] comes into play if BaseX is to be used bymore than one user (client). It handles concurrent [[Transaction_Management|read and write transactions]],provides [[User Management|user management]] and [[Logging|logs all user interactions]]. By default, the server listens to the port {{Code|1984}}.There distributions are several ways of starting and stopping the server(get more information on all [[Command-Line Options#Server|Startup Options]]): * Run one of the {{Code|[[Start_Scripts#Linux.2FMac:_basex|basexserver]]}} or {{Code|[[Start Scripts#Windows: basex.bat|basexserver.bat]]}} scripts. Add the {{Code|stop}} keyword to gracefully shut down the server.* Execute the following command: {{Code|java -cp BaseX.jar org.basex.BaseXServer}}. Again, the {{Code|stop}} keyword will ensure a graceful shutdown.* On ''Windows'': Double click on the '''BaseX Server''' icon, which will also start the [[#HTTP Server|HTTP Server]], or the '''BaseX Server (stop)''' icon. Pressing {{Code|Ctrl+c}} will close all connections and databases and shut down the server process. ==Client== The [[Database Server|BaseX Client]] interface can be used to sendcommands and queries to the server instance on command line. It can be started as follows(get more information on all [[Command-Line Options#Client|Startup Options]])available:

The default {{Code|admin}} user can be used to connect to '''Core Package''' is a very compact JAR file. It contains the BaseX database management system, the XQuery processor, the client/server: <br/>* <b>Username:</b> {{Code|admin}}* <b>Password:</b> {{Code|admin}}The password should be changed with architecture, and the {{Code|[[Commands#PASSWORD|PASSWORD]]}} command after the first logingraphical user interface. It runs without additional libraries.<br/>

With the HTTP Server, After BaseX can be used as [[Web Application]].It provides access to the [[REST]]has been unzipped or installed, [[RESTXQ]] and [[WebDAV]] services.An instance of the [http://jetty.codehaus.org/jetty/ Jetty Web Server] following directories will be created,which by default listens to the port {{Code|8984}}. Additionally, the BaseX Server willbe started, which is accessible on port {{Code|1984}}.available:

It * {{Code|bin/}}: Start scripts (Windows, Linux).* {{Code|data/}}: Database directory. See [[Configuration]] for more details.* {{Code|etc/}}: Example data: XML sample, [[Catalog Resolver|catalog and DTD files]].* {{Code|lib/}}: Extra libraries (Jetty, Tagsoup, …).* {{Code|lib/custom/}}: Directory, in which additional JAR files can be started placed (such as follows the Saxon library).* {{Code|repo/}}: [[Repository]] for external XQuery modules (get more information on all the [http://www.xqueryfunctions.com FunctX] library is included as example).* {{Code|src/}}: Directory for your XQuery scripts and other source data.* {{Code|webapp/}}: [[Command-Line Options#HTTP Server|Startup OptionsWeb Application]])directory:home of the RESTXQ web application, REST scripts, and [[DBA]].

* Run one of If BaseX is started via the {{Code|[[Start_Scripts#Linux.2FMac:_basexhttp|basexhttp]]}} start scripts or {{Code|[[Start Scripts#the Windows: basexhttp.bat|basexhttp.bat]]}} scripts. Call the script with icons, all JAR files in the {{Code|stoplib}} keyword directory and its descendant directories will be added to gracefully shut down the server.* On ''Windows'': Double click on the '''BaseX Server''' or '''BaseX Server (stop)''' icon.* BaseX can also be deployed as [[Web Application#Servlet Container|web servlet]]class path.

In If you work with the first two casesZIP distribution, and if you want to make BaseX globally available, you can add the command-line output will look similar {{Code|bin}} directory to the following lines (the JSP warning message [http://stackoverflowyour PATH environment variable.com/questions/3521654/missing-jsp-support-in-jetty-or-confusing-log-message can be ignored]):

<pre class="brush:xml">[main] INFO org.eclipse.jetty.server.Server - jetty-8.1.18.v20150929[main] INFO org.eclipse.jetty.webapp.StandardDescriptorProcessor - NO JSP Support for /, did not find org.apache.jasper.servlet.JspServlet[main] INFO org.eclipse.jetty.server.AbstractConnector - Started SelectChannelConnector@0.0.0.0:8984HTTP Server was started (port: 8984).</pre>=Web Archive==

You The '''WAR Archive''' can adjust the Jetty logging level by adding the following properties to the start script:be embedded in existing Java web servers.

<pre class="brush:xml">-Dorg.eclipse.jetty.util.log.class=org.eclipse.jetty.util.log.StdErrLog -D{classref}.LEVELOther Distributions==DEBUG</pre>

After thatVarious other distributions are available from the download page, you can e. g. open your browser most of which contain only the core package and navigate to the RESTXQ start page http://localhost:8984, optionally, scripts for starting BaseX.