Single Select CHOICE
A dropdown single-select field, supporting both static enum values and dynamically fetched options from the backend.
Basic Usage
Static options:
java
@EruptField(
edit = @Edit(
title = "Selector",
type = EditType.CHOICE,
choiceType = @ChoiceType(
vl = {
@VL(label = "Letter A", value = "A", color = "#0f0"),
@VL(label = "Letter B", value = "B", disable = true),
@VL(label = "Letter C", value = "C"),
}
)
)
)
private String choice;Configuration
java
public @interface ChoiceType {
Type type() default Type.SELECT; // Display mode
VL[] vl() default {}; // Static option list
String[] fetchHandlerParams() default {}; // Parameters passed to fetchHandler
Class<? extends ChoiceFetchHandler>[] fetchHandler() default {}; // Dynamic option source
boolean anewFetch() default false; // Whether to re-fetch options when editing
String dependField() default ""; // Linked field name (in the same entity)
enum Type {
SELECT, // Dropdown select (default)
RADIO, // Radio button group
}
}Example: Dynamic Options
Implement the ChoiceFetchHandler interface to generate options dynamically from a database or any other source:
java
@EruptField(
edit = @Edit(title = "Selector", type = EditType.CHOICE,
choiceType = @ChoiceType(
fetchHandler = FetchHandlerImpl.class,
fetchHandlerParams = {"α", "β", "γ"} // pass parameters via params
))
)
private String choice;java
@Component
public class FetchHandlerImpl implements ChoiceFetchHandler {
@Override
public List<VLModel> fetch(String[] params) {
List<VLModel> list = new ArrayList<>();
list.add(new VLModel("a", "A"));
list.add(new VLModel("b", "B"));
return list;
}
}Contributors
YuePeng