1. API reference
  2. Welcome
    1. Component overview
    2. Quick start
    3. System requirements
    4. Troubleshooting
    5. Managing license keys
  3. Connecting to Data Source
    1. JSON
      1. Connecting to JSON
      2. Connecting to JSON using the Data Compressor
      3. Data types in JSON
    2. CSV
      1. Connecting to CSV
      2. Connecting to CSV using the Data Compressor
      3. Data types in CSV
    3. Database
      1. Connecting to SQL databases
      2. Connecting to other databases
      3. Connecting to a database with Node.js
      4. Connecting to a database with .NET
      5. Connecting to a database with .NET Core
      6. Connecting to a database with Java
      7. Connecting to a database with PHP
    4. Microsoft Analysis Services
      1. Connecting to Microsoft Analysis Services
      2. Getting started with the Accelerator
      3. Installing the Accelerator as a Windows service
      4. Referring the Accelerator as a DLL
      5. Configuring the authentication process
      6. Configuring a secure HTTPS connection
      7. Troubleshooting
    5. Pentaho Mondrian
      1. Connecting to Pentaho Mondrian
      2. Getting started with the Accelerator
      3. Configuring Mondrian roles
      4. Configuring username/password protection
      5. Configuring a secure HTTPS connection
      6. Troubleshooting
    6. Elasticsearch
      1. Connecting to Elasticsearch
      2. Configuring the mapping
  4. Security
    1. Security in Flexmonster
    2. Security aspects when connecting to an OLAP cube
      1. The data transfer process
      2. Data security
      3. Data access management
    3. Security aspects when connecting to a database
      1. The data transfer process
      2. Data access management
  5. Configuring report
    1. What is a report
    2. Data source
    3. Slice
    4. Options
    5. Number formatting
    6. Conditional formatting
    7. Set the report for the component
    8. Get the report from the component
    9. Date and time formatting
    10. Configuring global options
    11. Export and print
    12. Calculated values
    13. Custom sorting
  6. Integration with frameworks
    1. Available tutorials
    2. Integration with AngularJS (v1.x)
    3. Integration with Angular
    4. Integration with React
    5. Integration with Webpack
    6. Integration with ASP.NET
    7. Integration with jQuery
    8. Integration with JSP
    9. Integration with TypeScript
    10. Integration with RequireJS
    11. Integration with PhoneGap
  7. Integration with charts
    1. Integration with Highcharts
    2. Integration with Google Charts
    3. Integration with FusionCharts
    4. Integration with any charting library
  8. Customizing
    1. Customizing toolbar
    2. Customizing appearance
    3. Customizing context menu
    4. Localizing component
  9. Updating to the latest version
    1. Updating to the latest version
    2. Release notes
    3. Migration guide from 2.6 to 2.7
    4. Migration guide from 2.5 to 2.6
    5. Migration guide from 2.4 to 2.5
    6. Migration guide from 2.3 to 2.4
    7. Migration guide from 2.2 to 2.3
    8. Documentation for older versions
Table of contents

Mondrian - Getting started with Flexmonster Accelerator

Flexmonster Accelerator for Pentaho Mondrian cubes is a special server-side proxy that increases data loading speeds from the server to customer’s browser.

When working with OLAP cubes, a browser component communicates with the server via the XMLA protocol. The XMLA protocol is heavy and exchanges a lot of excessive information – it takes too much time and memory to load and process the data.

We replaced the XMLA protocol and use direct requests from the component to the server.

This is our solution to two major problems that many of those who work with big data face:

  • We made big data transfer from the server to the browser incredibly fast. Our tool allows you to transfer large multidimensional data super easily and quickly. Reporting becomes more enjoyable and prompt for your end users.
  • We greatly reduced the load on the browser memory.

Open Live Demo


  • Flexmonster Pivot version 2.2 or higher
  • A relational database with a Mondrian schema
  • Java JRE 1.7+

Step 1: Embed the component into your web page

Set up an empty component in your HTML page. If Flexmonster is not yet embedded – return to Quick start. Your code should look similar to the following example:

<div id="pivotContainer">The component will appear here</div>
<script src="flexmonster/flexmonster.js"></script>
	var pivot = new Flexmonster({
		container: "pivotContainer",
		toolbar: true,

Step 2: Configure Flexmonster Accelerator on the server

The package contains the following files (in the server/ folder):

  • flexmonster-proxy-mondrian.jar – a server-side utility that handles connectivity between Pentaho Mondrian and Flexmonster Pivot
  • flexmonster-proxy-mondrian-4.jar – same as flexmonster-proxy-mondrian.jar, but for the newer version of Pentaho Mondrian 4.4
  • flexmonster.config – a file that contains configuration parameters for the utility (connection string, port, etc.)

There are also additional sample files:

  • FoodMart.xml – a sample Mondrian schema for a FoodMart database
  • FoodMart-4.xml – same as FoodMart.xml, but for the newer version of Pentaho Mondrian 4.4
  • mysql-connector-java-*.jar – a Java connector for a MySQL database

Let’s review flexmonster.config file. It contains the following parameters:

  • CONNECTION_STRING – (required) the connection string for Pentaho Mondrian. Example:
  • JDBC_DRIVER_JAR – (required) the path to the Java connector (a .jar file) for the database. Example: ./mysql-connector-java-5.1.37.jar.
  • JDBC_DRIVER_CLASS – (required) the class name of the Java connector. Example: com.mysql.jdbc.Driver.
  • CATALOGS_PATH – (optional) a path to the folder that contains the Mondrian schemas. Default value: ./.
  • PORT – (optional) the port number for the proxy service endpoint. Default value: 50006.
  • CACHE_MEMORY_LIMIT – (optional) the maximum memory size available for caching (in MB). Default value: 0 (unlimited).
  • CACHE_ENABLED – (optional) indicates whether caching is enabled. Default value: true. Available since version 2.211.
  • HTTPS – (optional) indicates whether the HTTPS connection is enabled. Default value: false.

After configuring all the necessary options, the Accelerator is ready to be launched. Just execute the following commands in terminal:

# navigate to the folder that contains the Accelerator
cd {path_to_package}/server
# start the Accelerator
java -jar flexmonster-proxy-mondrian.jar

If your schema is built for Mondrian 4, use flexmonster-proxy-mondrian-4.jar instead.

Step 3: Open a port for Flexmonster Accelerator in the firewall

If you plan to allow connections to the Accelerator from outside the server, open the appropriate port in the firewall. The default port number is 50006, but it can be changed using the PORT parameter in the flexmonster.config file.

Step 4: Configure Flexmonster Pivot Table and Charts

Now it’s time to configure the client – Flexmonster Pivot Table and Charts. Let’s create a minimal configuration using the JavaScript API (replace proxyUrl, catalog, and cube parameters with your specific values):

var pivot = new Flexmonster({
	container: "pivotContainer",
	toolbar: true, 
	report: {
		dataSource: {
			dataSourceType: "mondrian",

			/* URL to Flexmonster Accelerator */
			proxyUrl: "http://localhost:50006",
			/* Data source info */
			dataSourceInfo: "MondrianFoodMart",

			/* Catalog name / Mondrian schema */
			catalog: "FoodMart",

			/* Cube name */
			cube: "Sales",

			// Flag to use the Accelerator instead of XMLA protocol
			binary: true

Launch the web page from a browser — there you go! A pivot table is embedded into your project.

Cache control

Flexmonster Accelerator for Mondrian has two levels of cache:

  • Mondrian cache
  • Accelerator cache (controlled by the CACHE_ENABLED parameter)

Usually a cache can improve performance greatly. However if the underlying database ever changes, the cache goes out of date. Mondrian cannot deduce when the database is being modified, so we introduce a method to force clear the Mondrian cache.

It works by triggering the “ClearCache” as follows:


The Accelerator cache can be disabled with the CACHE_ENABLED parameter in flexmonster.config (available since version 2.211):


Mondrian configuration

Mondrian has a properties file to allow you to configure how it is executed. It is possible to use any of these properties with the Accelerator.

To do this, create a mondrian.properties file in the same location as flexmonster-proxy-mondrian.jar.

For example:

mondrian­.­rolap­.­aggregates­.­ChooseByVolume = false
mondrian­.­rolap­.­aggregates­.­generateSql = false

Refer to the full list of Mondrian properties to find out more.