Parameter, target, exception and return value binding.
参数，目标，异常以及返回值绑定。
The only difference from Listing 5 is the value binding expression.
与清单5惟一的不同之处在于值绑定表达式。
When you create component properties that are bound with JSF-EL, you need to create a value binding expression.
在创建使用JSF - EL绑定的组件属性时，需要创建值绑定表达式。
The component has a special method to store value bindings, namely setValueBinding; you can have more than one value binding.
这个组件拥有保存值绑定的特殊方法，即setValueBinding；可以有不止一个值绑定。
Given that JSF does not care to reduce the number of times it resolves a value binding expression, Seam's factory feature often comes in handy.
在JSF不负责减少它解析一个值绑定表达式的次数的情况下，Seam的工厂特性常常变得非常方便。
You might assume that you can stick the logic inside the getter method of the backing bean that maps to the value binding expression in the view.
您可能会认为，可以将逻辑放在映射到视图中值绑定表达式的backingbean的getter方法中。
When the getter method of the bound property is called it must use the value binding to get the value unless the setter method has set the value already.
在调用绑定属性的getter方法时，除非setter方法已经设置了值，否则getter方法必须用值绑定获得值。
The other way is to read it from the value binding that corresponds to the temporary loop variable, which is defined in the component tag's var attribute.
另一种方法是从对应于临时循环变量的值绑定中读取该数据，该变量定义在组件标记的var属性中。
With the improved Spring integration in place, you no longer need to specify a value binding in the @In annotation atop the courseManager property, nor do you need the required=false attribute.
有了改进后的Spring集成，就无需在courseManager属性顶上的 @In注释中指定值绑定了，亦无需required=false属性。
In a component framework, invocations are a direct result of either UI events or resolved value-binding expressions.
在组件框架中，UI事件或解析的值绑定表达式直接导致方法调用。
UserRegistration.user.age represents a value-binding property that is of type int.
age表示一个值绑定属性，它的类型为 int。
UserRegistration.user.age represents a value-binding property that is of type int.
age表示一个值绑定属性，它的类型为 int。
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