public Collection<String> getAllColumnNames(final String tableName) {
        return tables.containsKey(tableName) ? tables.get(tableName).getColumns().keySet() : Collections.<String>emptyList();
    }
public Collection < String > getAllColumnNames ( final String tableName ) { return tables . containsKey ( tableName ) ? tables . get ( tableName ) . getColumns ( ) . keySet ( ) : Collections . < String > emptyList ( ) ; }
Get all column names via table.

@param tableName table name
@return column names