Including actionscript in a flex application

Question

If I include a an external actionscript file in a flex mxml
file, I get different behaviours at compile time depending on the
method used. Using an mx script tag with a xource attribute or an
include statement, then compiling the file gives errors like:
Error: Packages cannot be nested.
If use import these errors go away and the file compiles but
then I have problems when trying to instantiate the class.
import lib.journal;
public var testing:journal = new journal();
testing.init();
which gives:
Error: Access of undefined property testing.
Can anyone explain what is going on here? What effect does
including the file as opposed to importing it have on packages and
scope?
thanks,

Answer 1

thanks. i think that makes sense. I'm now getting another
error though:
journal/trunk/lib/MindJournal.as(42): col: 41 Error: Type was
not found or was not a compile-time constant: SQLEvent.
private function selectResult(event:SQLEvent):void {
^
journal/trunk/lib/MindJournal.as(65): col: 40 Error: Type was
not found or was not a compile-time constant: SQLErrorEvent.
private function selectError(event:SQLErrorEvent):void {
I'm trying to adapt what is here:
http://www.adobe.com/devnet/air/flex/quickstart/simple_sql_database.html
to use an external actionscript class which now looks like:
[code]
package lib {
import flash.data.SQLResult;
import flash.data.SQLConnection;
import flash.filesystem.File;
import flash.data.SQLStatement;
import flash.data.SQLConnection;
public class MindJournal {
private var conn:SQLConnection;
private var createStmt:SQLStatement;
private var insertStmt:SQLStatement;
private var insertStmt2:SQLStatement;
private var selectStmt:SQLStatement;
public function init() {
conn = new SQLConnection();
conn.addEventListener(SQLEvent.OPEN, openSuccess);
conn.addEventListener(SQLErrorEvent.ERROR, openFailure);
var dbFile:File =
File.applicationStorageDirectory.resolvePath("/db/journal.sqlite");
conn.openAsync(dbFile);
//getData();
private function getData():void {
status = "Loading data";
selectStmt = new SQLStatement();
selectStmt.sqlConnection = conn;
var sql:String = "SELECT id, column_1, column_2 FROM
entries";
selectStmt.text = sql;
selectStmt.addEventListener(SQLEvent.RESULT, selectResult);
selectStmt.addEventListener(SQLErrorEvent.ERROR,
selectError);
selectStmt.execute();
private function selectResult(event:SQLEvent):void {
status = "Data loaded";
selectStmt.removeEventListener(SQLEvent.RESULT,
selectResult);
selectStmt.removeEventListener(SQLErrorEvent.ERROR,
selectError);
var result:SQLResult = selectStmt.getResult();
var numRows:int = result.data.length;
for (var i:int = 0; i < numRows; i++)
var output:String = "";
for (var prop:String in result.data
output += prop + ": " + result.data[prop] + "; ";
trace("row[" + i.toString() + "]\t", output);
resultsGrid.dataProvider = result.data;
private function selectError(event:SQLErrorEvent):void {
status = "Error loading data";
selectStmt.removeEventListener(SQLEvent.RESULT,
selectResult);
selectStmt.removeEventListener(SQLErrorEvent.ERROR,
selectError);
trace("SELECT error:", event.error);
trace("event.error.message:", event.error.message);
trace("event.error.details:", event.error.details);
} //end of class
} //end of package
[/code]