| Package | Description | 
|---|---|
| org.openmrs.web.attribute.handler | 
| Class and Description | 
|---|
| FieldGenDatatypeHandler
 A web-layer extension of a  
CustomDatatypeHandler, which also defines what fieldgen widget is used to
 collect the values, and how to fetch them from a web request. | 
| HtmlDisplayableDatatypeHandler
 A CustomDatatypeHandler that is capable of producing HTML output for display 
 | 
| WebDatatypeHandler
 A web-layer extension of  
CustomDatatypeHandler, which generates the HTML for a widget, and handles the submission of that widget | 
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