publicAPI doActivity is the way -

doActivity

void doActivity(StringMap aKeys, ClipboardPage aNewPrimaryPage, ParameterPage aNewParam)

Executes the identified processing, which is typically defined by class Rule-Obj-Activity. This method resets the current Primary Page, so is intended only for use with Rule-Obj-Activity, and certain other classes that require this unusual behavior. Most generated Java classes that implement the Activity interface should be invoked using the doAction(com.pega.pegarules.pub.util.StringMap, com.pega.pegarules.pub.clipboard.ClipboardPage, com.pega.pegarules.pub.runtime.ParameterPage) method.

Parameters:

aKeys - specifies the desired Rule- reference. Recognized values are:

• pxObjClass - (optional) name of defining class; defaults to Rule-Obj-Activity. The actual value used determines what other values might be significant.
• pyClassName - (optional) explicit class of definition that is subject to class inheritance. The actual class of the Primary Page used (which is the default) must be an instance of any specified pyClassName.
• - additional key properties will depend on the value of pxObjClass
. For the default case (Activity) one key property is required -

pyActivityName

, for other rules consult the rule class definition in

Rule-Obj-Class

.

aKeys is a StringMap which is implemented by HashStringMap and ClipboardPage.

aNewPrimaryPage - new Primary Page, or null to retain current one. NOTE: the current value of the Primary Page is used as the basis for evaluating circumstance, so care must be taken in determining when this value should be modified, hence when this method should be used.

aNewParam - new ParameterPage, or null to retain current one

Throws:

RuleGenerationException - An error that indicates there was a problem during generation of the activity.