@ExecutionParam"
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'''Target:''' A method's parameter (initial method and command method) | '''Target:''' A method's parameter (initial method and command method) | ||
− | '''Purpose:''' Tell binder to retrieve this parameter with specified key from current execution's attribute. | + | '''Purpose:''' Tell binder to retrieve this parameter with specified key from the current execution's attribute. |
− | The annotation is applied to initial | + | The annotation is applied to initial (or command) method's parameter. It declare the applied parameter should come from the current execution's attribute with specified key. |
= Example = | = Example = |
Revision as of 04:49, 10 February 2012
Syntax
@ExecutionParam("keyString")
Description
Target: A method's parameter (initial method and command method)
Purpose: Tell binder to retrieve this parameter with specified key from the current execution's attribute.
The annotation is applied to initial (or command) method's parameter. It declare the applied parameter should come from the current execution's attribute with specified key.
Example
Assume we want to pass an object by execution's attribute to an included ZUL that uses a ViewModel: ExecutionParamVM.
outer ZUL
<window id="w2">
<zscript>
void doClick(){
org.zkoss.zk.ui.Execution ex = org.zkoss.zk.ui.Executions.getCurrent();
ex.setAttribute("param1","abc");
inc.src = "executionparam-inner.zul";
}
</zscript>
<button label="do include" onClick="doClick()"/>
<include id="inc" />
</window>
We use annotation to retrieve execution's attribute with key "param1".
public class ExecutionParamVM {
private String param1;
@Init
public void init(@ExecutionParam("param1") String param1){
this.param1 = param1;
}
//setter, getter, and others
}
executionparam-inner.zul
<vbox apply="org.zkoss.bind.BindComposer" viewModel="@id('vm') @init('foo.ExecutionParamVM')">
<label value="@load(vm.param1)"/>
</vbox>
- The label will display "abc".
Version History
Version | Date | Content |
---|---|---|
6.0.0 | February 2012 | The MVVM was introduced. |