ZK Developer's Reference/MVC/Controller/Wire Variables

Wiring Sequence

GenericForwardComposer will wire members defined in the composer. Here is the sequence:

1. It searches any setters if its name matches any of the following
   1. Any fellow with the same name (Component.getFellow(String))
   2. Any variable defined in Page.addVariableResolver(VariableResolver) with the same name
   3. Any variable defined in zscript with the same name
   4. Any implicit object with the same name
2. Then, it searches any field to see if it matches any fellow, any variable,... the same as the above.

Wire Variables defined Variable Resolver

Wire Spring-managed Beans

Because the variable resolver will be checked when wiring a variable, you could wire a managed bean by declaring a built-in variable resolved called DelegatingVariableResolver.

<?variable-resolver class="org.zkoss.zkplus.spring.DelegatingVariableResolver"?>
<window apply="foo.MyComposer">
...
    <textbox id="password"/>
...
    <button id="submit" label="Change"/>
</window>

Then, if a data member's name matches a Spring-managed bean, it will be wired automatically too. For example,

public class PasswordSetter extends GenericFowardComposer {
    private User user; //wired automatically if user is a spring-managed bean
    private Textbox password; //wired automatically if there is a textbox named password

    public void onClick@submit() {
        user.setPassword(password.getValue());
    }
}

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