final ObjectActionParameter objectActionParameter = getAction().getParameters().get(getNumber());
if (!(objectActionParameter instanceof ParseableEntryActionParameter)) {
return null;
}
final ParseableEntryActionParameter parameter = (ParseableEntryActionParameter) objectActionParameter;
final ObjectSpecification parameterSpecification = parameter.getSpecification();
final ParseableFacet p = parameterSpecification.getFacet(ParseableFacet.class);
final ObjectAdapter newValue = p.parseTextEntry(null, proposedString);
final ValidityContext<?> ic =
parameter.createProposedArgumentInteractionContext(getAuthenticationSession(),
InteractionInvocationMethod.BY_USER, adapter, arguments(newValue), getNumber());
final InteractionResultSet buf = new InteractionResultSet();
InteractionUtils.isValidResultSet(parameter, ic, buf);
if (buf.isVetoed()) {