Model Introduction-XWorker

Model introduction

Model in X-Meta engine is also known as thing, so model is thing and thing is model.

Model's structure and XML's structure is the same, is made up of attributes and child nodes.

Pictured above, a model is composed of attributes, child model (also known as a child or child nodes) andbehavior (behavior is child node) form.

Things and nodes
X-Meta engine, any XML node is resolved a separate thing (Thing), so that every node is one thing.
Attribute
A node can contain any number of attributes, the property is made up of key and value key-value pairs.
Behavior
Behavior can be executed, Things that define under the actions node are behaviros. Person defined whoAmI and sayHello two acts.

We define a name = "Person" object model, it can be described following this model.

Pictured above, Person is the descriptor of the model which name is "Zhangsan".

Person descripted the strucutre of Zhangsan
Person is the descriptor of Zhangsan. We can use Peron to explan Zhangsan, for example person has <attribute name="name"/> and <attribute name="age"/> two child, then we can say Zhangsan has name and age two attribute. Person has <thing name="Child"/> child, then Zhangsan also can has child node named 'Child'.
Person descripted dehaviors of Zhangsan
Person has two behavior named whoAmI and sayHello, then Zhangsan has them too.
Descriptor is class and structure
To sum up, Descriptor is the class action also play a role in structure.

Pictured above, ame="Child" child node extended Person's root node, then Child is also a Person.