How to use

DefaultSearchHandlerManager$PermissionToUse

in

com.atlassian.jira.issue.search.managers

@Override
@Nonnull
public Collection<String> getFieldIds(final ApplicationUser searcher, final String jqlClauseName)
{
  return transform(filter(getHelper().getSearchHandler(jqlClauseName), and(hasFieldId, new PermissionToUse(searcher))), getFieldId);
}

@Override
@Nonnull
public Collection<ClauseNames> getVisibleJqlClauseNames(final ApplicationUser searcher)
{
  return transformSet(filter(getHelper().getSearchHandlers(), new PermissionToUse(searcher)), getClauseNames);
}