Access object of DynamicManagement outside tango generated class.

# 7 years ago
TCS_GMRT	Hi all, This is Sarojini. I have few queries related to DynamicManagement class. I want to create dynamic attributes by referring dynamicManager outside the tango generated class. Is there any way to access dynamicManager(object of DynamicManagement class) outside the tango class. If yes? then how to access? Regards, TCS_GMRT

# 7 years ago
Vatsal	A simple solution in JAVA: Lets say you want to access DynamicManager object in Class XYZ which is not a TANGO Class. Create a parameterized constructor of Class XYZ, with DynamicManager object as one of the parameters. Example is shown below: `public class XYZ { private String param1; private DynamicManager dynamicManager; public XYZ(String param1, DynamicManager dynamicManager) { this.param1 = param1; // use the local dynamicManager variable to add/remove attributes/commands this.dynamicManager = dynamicManager; } . . . }` In the init_device method of your TANGO Class, create an object of XYZ class. Example is shown below: @Device public class TangoClass { protected static final Logger logger = LoggerFactory.getLogger(TangoClass.class); protected static final XLogger xlogger = XLoggerFactory.getXLogger(TangoClass.class); //======================================================== // Programmer's data members //======================================================== /—– PROTECTED REGION ID(TangoClass.variables) ENABLED START —–/ // Put static variables here /—– PROTECTED REGION END —–/ // TangoClass.variables /—– PROTECTED REGION ID(TangoClass.private) ENABLED START —–/ // Put private variables here XYZ objXYZ; /—– PROTECTED REGION END —–/ @Init(lazyLoading = false) public void initDevice() throws DevFailed { xlogger.entry(); /—– PROTECTED REGION ID(TangoClass.initDevice) ENABLED START —–/ // Put your device initialization code here objXYZ = new XYZ("Test param", dynamicManager); . . . } . . . } This will address your problem. However I'm not sure whether creating attributes dynamically outside the TANGO Class is as per the TANGO pattern or not. TANGO experts will shed some light on it. Edited 7 years ago

# 7 years ago

Vatsal

A simple solution in JAVA:

Lets say you want to access DynamicManager object in Class XYZ which is not a TANGO Class. Create a parameterized constructor of Class XYZ, with DynamicManager object as one of the parameters. Example is shown below:

public class XYZ {
    private String param1;
    private DynamicManager dynamicManager;
    
    public XYZ(String param1, DynamicManager dynamicManager) {
        this.param1 = param1;
        // use the local dynamicManager variable to add/remove attributes/commands
        this.dynamicManager = dynamicManager;
    }
	.
	.
	.	
}

In the init_device method of your TANGO Class, create an object of XYZ class. Example is shown below:


@Device
public class TangoClass {

	protected static final Logger logger = LoggerFactory.getLogger(TangoClass.class);
	protected static final XLogger xlogger = XLoggerFactory.getXLogger(TangoClass.class);
	//========================================================
	//	Programmer's data members
	//========================================================
	/*—– PROTECTED REGION ID(TangoClass.variables) ENABLED START —–*/

	//	Put static variables here
    
	/*—– PROTECTED REGION END —–*/	//	TangoClass.variables
	/*—– PROTECTED REGION ID(TangoClass.private) ENABLED START —–*/

	//	Put private variables here
	XYZ objXYZ;
	/*—– PROTECTED REGION END —–*/
	
	@Init(lazyLoading = false)
	public void initDevice() throws DevFailed {
		xlogger.entry();
		/*—– PROTECTED REGION ID(TangoClass.initDevice) ENABLED START —–*/

		//	Put your device initialization code here
		
		objXYZ = new XYZ("Test param", dynamicManager);
		.
		.
		.
	}	
	.
	.
	.
}

This will address your problem.

However I'm not sure whether creating attributes dynamically outside the TANGO Class is as per the TANGO pattern or not. TANGO experts will shed some light on it.

Edited 7 years ago

# 7 years ago
TCS_GMRT	Hi Vatsal, I tried with the mentioned solution and I am able to create dynamic attributes from other classes too. Thank you. Regards, TCS_GMRT