KB47108: How to Determine Which Selector Element Has Been Selected Using the MicroStrategy Web SDK

The example provided in this document is provided “as-is” to the user and assumes that the user:

• Can program, compile (e.g. javac, jikes, etc.), and execute Java programs
• Can configure environment variables (e.g. JAR files, property files, etc.)
• Have all the necessary tools to create Java applications (JDK, IDE, etc.)
• Has access to the Strategy SDK documentation.
• Has read the customization warning at the bottom of this document

 
PREREQUISITES:
For the sample to work, the Strategy Web JAR files must be accessible by the Java Runtime
Environment. The Strategy Web JAR files can be found under:

• Strategy Web Universal (JSP): {web_root}/WEB-INF/lib directory.
• Strategy Web (.NET): Program Files\Common Files\Strategy directory.

Using the Web Customization Editor, it is possible to obtain a list of elements contained within a selector object, and verify which elements are currently selected. The provided sample code was used within an addon.
 

public void postCollectData(PageComponent page) { 
	System.out.println("Called Post Collect");
	WebAppSessionManager sm = null;
	try {
		sm = page.getAppContext().getAppSessionManager();
		if (sm != null) {
			System.out.println("Session is null");
		}

		RWBean rwb = (RWBean) page.getChildByClass(RWBean.class);
		RWInstance inst = rwb.getRWInstance();
		RWData data = inst.getData();
		RWDefinition def = inst.getDefinition();
		String key = null;
		String control = "SelectorA"; // enter the name of the selector to be accessed here
		RWUnitDef[] units = def.findUnitsByType(EnumRWUnitTypes.RWUNIT_CONTROL);

		//Obtain key for selector with the name that matches the string "control"

		for (int i = 0; i < units.length; i++) {
			System.out.println("units=" + units[i].getName()); 
			if (units[i].getName().equals(control)) {
				key = units[i].getKey();
				System.out.println("key=" + key);
			}
		}
		List list = data.findUnits(key);
		RWSelectorControlObject selectorObj = (RWSelectorControlObject) list.get(0);
		RWGroupByElements selectorElements = selectorObj.getElements();

		System.out.println("selectorElements = " + selectorElements.size());
		for (int y = 0; y < selectorElements.size(); y++) {
			// Verify if the selector element at this index is currently selected, and print output in the console.
			    
			if (selectorElements.get(y).isCurrent()) System.out.println("ELEMENT = " + selectorElements.get(y).getDisplayName() + "is selected.");

		}
	} catch (Exception e) {
		e.printStackTrace();
	}
}

  
Note:
More elaborate programs will require additional library files and are out of the scope of this document.
 
ADDITIONAL INFORMATION:
The Strategy SDK allows you to customize the standard Strategy Web interface, and extend and integrate the Strategy business intelligence functionality into other applications. However, before changing the way Strategy Web products look or behave, it is helpful to understand how the application is built. For more information regarding the Strategy Web architecture or the process of customizing Strategy Web, please refer to Strategy Developer Zone (https://resource.microstrategy.com/msdz/).
 
To access the Strategy Developer Zone, you must have access to the Strategy Knowledge Base, you must have purchased the Strategy SDK, and you must be current on your Strategy maintenance agreement. If you are a US-based business and believe that you satisfy all three of these conditions but you do not have access to the Strategy Developer Zone, please contact Strategy Technical Support at support@microstrategy.com or at (703) 848-8700. If you are an international business, please contact Strategy Technical Support at the appropriate email address or phone number found at http://www.microstrategy.com/Support/ContactUs.asp.
 
CUSTOMIZATION WARNING: 
This customization is provided as a convenience to Strategy users and is only directly applicable to the version stated. While this code may apply to other releases directly, Strategy Technical Support makes no guarantees that the code provided will apply to any future or previous builds. In the event of a code change in future builds, Strategy Technical Support makes no guarantee that an updated version of this particular customization will be provided. In the event of a code change in future builds, Strategy may not be able to provide additional code on this matter even though this customization is provided at this time for this specific build. For enhancements to this customization or to incorporate similar functionality into other versions, contact your Account Executive to inquire about Strategy Consulting assistance.