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T
- The model object typepublic interface IChoiceRenderer<T>
Renders one choice. Separates the 'id' values used for internal representation from 'display values' which are the values shown to the user of components that use this renderer.
Method Summary | |
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Object |
getDisplayValue(T object)
Get the value for displaying to an end user. |
String |
getIdValue(T object,
int index)
This method is called to get the id value of an object (used as the value attribute of a choice element) The id can be extracted from the object like a primary key, or if the list is stable you could just return a toString of the index. |
Method Detail |
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Object getDisplayValue(T object)
object
- the actual object
String getIdValue(T object, int index)
Note that the given index can be -1
if the object in question is not contained in the
available choices.
object
- The object for which the id should be generatedindex
- The index of the object in the choices list.
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