@Default"
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@Command | @Command | ||
| − | public void cmd(@Default("false") Boolean arg1, @BindingParam(" | + | public void cmd(@Default("false") Boolean arg1, @BindingParam("arg2") @Default("3") Integer arg2){ |
//... | //... | ||
} | } | ||
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</source> | </source> | ||
* According to above example, if we click first button, binder will pass 100 to arg2. If we click second button, arg2 will be 3. | * According to above example, if we click first button, binder will pass 100 to arg2. If we click second button, arg2 will be 3. | ||
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=Version History= | =Version History= | ||
Revision as of 05:48, 3 January 2013
Syntax
@Default("defaultValue")
Description
Target: A method's parameter (for initial and command methods)
Purpose: Assign a binding parameter's default value when it's null.
You give annotation element's value with a String, and ZK will cast to the corresponding type of the parameter. You can apply this annotation after other parameter related annotation e.g., @BindingParam. If a parameter retrieved by first annotation is null, it uses the default value specified in this annotation.
Example
Pass parameter from a zul
<button id="first" onClick="@command('cmd', arg2=100)" />
<button id="second" onClick="@command('cmd')" />
Example to assign default value
@Command
public void cmd(@Default("false") Boolean arg1, @BindingParam("arg2") @Default("3") Integer arg2){
//...
}
- According to above example, if we click first button, binder will pass 100 to arg2. If we click second button, arg2 will be 3.
Version History
| Version | Date | Content |
|---|---|---|
| 6.0.0 | February 2012 | The MVVM was introduced. |