@Override
	public String getConstraintValueString() {

		StringBuffer buf = new StringBuffer();

		buf.append("{");
		// @formatter:off
		buf.append(acceptableValues.stream()
			.map(e ->  e.toString())
			.collect(Collectors.joining(",")));
		// @formatter:on

		buf.append("}");
		return buf.toString();
	}
Returns the set of acceptable (matching) Enum values that are acceptable to this constraint.

@return the set of acceptable (matching) Enum values that are acceptable to this constraint.
Ghidra/Framework/Docking/src/main/java/docking/widgets/table/constraint/EnumColumnConstraint.java