public List<String> getParameters() { return operator != null ? operator.getParameters() : null; }
public String getParametersText() { if ( operator != null && operator.getParameters() != null ) { StringBuilder builder = new StringBuilder(); boolean first = true; for ( String param : operator.getParameters() ) { if ( first ) { first = false; } else { builder.append( "," ); } builder.append( param ); } return builder.toString(); } return null; }