Serialization big object(100k--2M) into MYSQL database

Hi all !
I have a big object need to be persisted into MYSQL database in my application.
I use two method to meet this request
1 ---- the object implement interface Serializable, but there is serializationVersionID is not same Exception
sometimes.
2 ---- Use XMLEncoder to save my object, the XMLEncoder generate the object XML text about 200k -- 3 M
, but another problem occur :
when I call flush method of XMLEncoder, my application will full ocuppy CPU time, and memory usage will increase to 90M, sometimes will ocurr "Not enough memory" Error.
Why?
can some one help me?
Thanks in advanced

1. You are modifying the signature of one or more of your classes that alters the (system generated) serializationVersionUID and then recompiling. You can declare this for yourself to get control to some extent. See the serialization spec for details.
2. Your object graph is very large, which might be a problem using native or xml formats. Again, the specification details ways in which you can control the serialized form of your objects.
On the information you've provided there's not much more that can be said.

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org.apache.jasper.JasperException: Unable to compile class for JSP
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Generated servlet error:
C:\Servers\Tomcat 5.0\work\Catalina\localhost\Assignment\org\apache\jsp\add_005fvehicle_005fform_jsp.java:113: ')' expected
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use this ...
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}Message was edited by:
Altered_Carbon
Message was edited by:
Altered_Carbon
I also realise that this is a more MYSQL titled problem, but those forums look rubbish <_<

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D.

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and for the PHP file, it checks against the DB and generates an XML which is kicks back to Flex:
<?php
//connect to DB however you do it, I have a function db_connect() that I call
$conn = db_connect();
$username = mysql_real_escape_string($_POST['username']);
$password = mysql_real_escape_string($_POST['password']);
//if you have encryption, then make sure you do that here (md5 or whatever)
//also, make sure you do validation of the input for SQL Injections and XSS attacks, but I'm not covering that here
$query = "SELECT * FROM usertable WHERE username = '$username' AND password = '$password'";
$result = mysql_fetch_array(mysql_query($query));
$output = "<loginsuccess>";
if(!$result) {
    $output .= "no";
    $output .= "</loginsuccess>";
} else {
    $output .= "yes";
    $output .= "</loginsuccess>";
print ($output);
?>

Problem inserting text with special Hungarian characters into MySQL database

When I insert text into my MySQL db the special Hungarian
characters (ő,ű) they change into "?".
When I check the
<cfoutput>#FORM.special_character#</cfoutput> it gives
me the correct text, things go wrong just when writing it into the
db. My hosting provider said the following: "please try to
evidently specify "latin2" charset with "latin2_hungarian_ci"
collation when performing any operations with tables. It is
supported by the server but not used by default." At my former
hosting provider I had no such problem. Anyway how could I do what
my hosting provider has suggested. I read a PHP related article
that said use "SET NAMES latin2". How could I do such thing in
ColdFusion? Any suggestion? Besides I've tried to use UTF8 and
Latin2 character encoding both on my pages and in the db but with
not much success.
I've also read a French language message here in this forum
that suggested to use:
<cfscript>
setEncoding("form", "utf-8");
setEncoding("url", "utf-8");
</cfscript>
<cfcontent type="text/html; charset=utf-8">
I' ve changed the utf-8 to latin2 and even to iso-8859-2 but
didn't help.
Thanks, Aron

I read that it would be the most straightforward way to do
everything in UTF-8 because it handles well special characters so
I've tried to set up a simple testing environment. Besides I use CF
MX7 and my hosting provider creates the dsn for me so I think the
db driver is JDBC but not sure.
1.) In Dreamweaver I created a page with UTF-8 encoding set
the Unicode Normalization Form to "C" and checked the include
unicode signature (BOM) checkbox. This created a page with the meta
tag: <meta http-equiv="Content-Type" content="text/html;
charset=utf-8" />. I've checked the HTTP header with an online
utility at delorie.com and it gave me the following info:
HTTP/1.1, Content-Type: text/html; charset=utf-8, Server:
Microsoft-IIS/6.0
2.) Then I put the following codes into the top of my page
before everything:
<cfprocessingdirective pageEncoding = "utf-8">
<cfset setEncoding("URL", "utf-8")>
<cfset setEncoding("FORM", "utf-8")>
<cfcontent type="text/html; charset=utf-8">
3.) I wrote some special Hungarian chars
(<p>őű</p>) into the page and they displayed
well all the time.
4.) I've created a simple MySQL db (MySQL Community Edition
5.0.27-community-nt) on my shared hosting server with phpMyAdmin
with default charset of UTF-8 and choosing utf8_hungarian_ci as
default collation. Then I creted a MyISAM table and the collation
was automatically applied to my varchar field into wich I stored
data with special chars. I've checked the properties of the MySQL
server in MySQL-Front prog and found the following settings under
the Variables tab: character_set_client: utf8,
character_set_connection: utf8, character_set_database: latin1,
character_set_results: utf8, character_set_server: latin1,
character_set_system: utf8, collation_connection: utf8_general_ci,
collation_database: latin1_swedish_ci, collation_server:
latin1_swedish_ci.
5.) I wrote a simple insert form into my page and tried it
using both the content of the form field and a hardcoded string
value and even tried to read back the value of the
#FORM.special_char# variable. In each cases the special Hungarian
chars changed to "q" or "p" letters.
Can anybody see something wrong in the above mentioned or
have an idea to test something else?
I am thinking about to try this same page against a db on my
other hosting providers MySQL server.
Here is the to the form:
http://209.85.117.174/pages/proba/chartest/utf8_1/form.cfm
Thanks, Aron

BOE XI 3.1 Mysql database connection jar

Hi All,
I am new learner for BOE.I installed Business Object Enterpraise 12.0.
I have created the report WebI rich client and saved in local path, and also some value insert into mysql database table.
I need to know how its stored into mysql database.
which jar file is used for creating the connection with mysql database .
Thanks,
Yousuf
Edited by: yousufalam on Dec 31, 2010 12:40 PM

The connection objects are store in the CI_APPOBJECTS repository table with SI_KIND='Metadata.DataConnection' . The connection properties are stored as property bags along with your objects.
Unfortunately I have just found a reference that this kind of access in not fully supported though and you may have to use the Universe Designer SDK (COM based)
Change password of Universe connection using Java SDK?
Since you are working with the SDK it will make sense to post your questions here:
Java SDK Application Development
Regards,
Stratos

Serialization big object(100k--2M) into MYSQL database

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