Dynamic Model Programing

The following about 3 minutes of GIF video demonstrates the basic method of dynamic model programming.The following video first creates a Person class, and then creates an instance Tom with the Person class, and finally executes Tom's related methods.

The above programming process is equivalent to the following code.

import org.xmeta.Thing;

//Define class Person
Thing Person = new Thing();
//code above equals java code: Object Person = new Object();
Person.set("descriptors", "xworker.lang.MetaDescriptor3");
//code above equals java code if setClass exists in java: 
//((Object) Person).setClass("xworker.lang.MetaDescriptor3"));

//Define attributes
Person.addChild(new Thing("name", "name", 
          "xworker.lang.MetaDescriptor3/@attribute"));
Person.addChild(new Thing("age", "age",
          "xworker.lang.MetaDescriptor3/@attribute"));
          
//Define actions
Thing actions = new Thing("xworker.lang.MetaDescriptor3/@actions");
Thing run = new Thing("run", "run", 
           "xworker.lang.actions.Actions/@GroovyAction");
run.set("code", "println self.name;");           
actions.addChild(run);
Person.addChild(actions);

//User class Person create object tom
Thing tom = new Thing(Person.getMetadata().getPath());
tom.put("name", "Tom");
tom.put("age", "40");

//Execute tom's method
tom.doAction("run", actionContext);