Is InOutUtil needed for memory-version ?
Does your "This seems OK" statement apply to the org.hsql.persist
classes removal ?
Thanks Jerome
fredt wrote:
This seems OK. The MD5 class is not used. Simple log can be made
non-functional by removing the file-related code. InOutUtil is needed for
object serialization.
Fred
----- Original Message -----
From: "Jérôme Paschoud" <[EMAIL PROTECTED]>
To: <hsqldb-developers@lists.sourceforge.net>
Sent: 12 September 2005 16:49
Subject: Re: [Hsqldb-developers] General Architecture Informations
What's new:
-org.hsqldb.lib.java.JavaSystem is cleaned up from any "file related
code" but their is not much left (just 2 methods that are used to work
on string and 1 that deals with the garbage collector)
-The import Collator in Collation class is removed and the rest of the
class is patched (most of the work is just removing conflicting code).
-Nearly half of the org.hsql.lib comiling in J2ME
How to part:
-Can org.hsqldb.lib.InOutUtil be removed or how to Patch?
-Can org.hsqldb.lib.MD5 be removed or how to Patch?
-Can org.hsqldb.lib.SimpleLog be removed or how to Patch?
-In package org.hsql.persist I remove everything exept CacheObject,
HsqlDatabasePoperties and hsqlProperties. Is there something missing or
is that the desired minimum?
Thanks Jerome
fredt wrote:
You can remove all those classes for a memory-only version. The Collator
class can be removed from HSQLDB's Collation class. The JavaSystem class
can
be simplified to remove blocks with calls that are not supported in J2M2.
Fred
----- Original Message -----
From: "Jérôme Paschoud" <[EMAIL PROTECTED]>
To: <hsqldb-developers@lists.sourceforge.net>
Sent: 12 September 2005 08:15
Subject: Re: [Hsqldb-developers] General Architecture Informations
I just replaced the Properties class from the HsqlProperties classes by
the Hashtable as you proposed.
For the class Locale if you want to get the Locale you have to code:
System.getProperty("microedition.locale")
That was for the wath's new part, now let's get to the how to part.
How do you get rid of java.text.Collator class?
Can I remove safelyn the org.hsqldb.lib.FileUtil class?
Can I remove safelyn the org.hsqldb.lib.ZipUnzipFile class?
Can I remove safelyn the org.hsqldb.lib.FileAccess class?
What to do with org.hsqldb.lib.java.JavaSystem?
Thanks Jerome
fredt wrote:
You need to remove the dependencies. The Locale can be removed from the
Collation class. You can also remove the use of the Properties class and
replace it with HashTable.
Fred
----- Original Message -----
From: "Jérôme Paschoud" <[EMAIL PROTECTED]>
To: <hsqldb-developers@lists.sourceforge.net>
Sent: 09 September 2005 13:28
Subject: Re: [Hsqldb-developers] General Architecture Informations
Ok now I'm at the next step and most of my problem are coming from the
fact that I cannot have and HsqlProperties because their is no
properties at all in the J2ME API.
I'm also having problem with the class java.util.Locale. Their is no
localisation system in J2ME (no java.text.Format, no java.io.Reader).
If you could help me on that I could go a bit further.
CU Jerome
fredt wrote:
You can determin class loading by looking at the uses of Class and
Class.forName() etc.
If you remove Log.java and its dependent classes, most of the IO related
stuff would disappear.
Fred
----- Original Message -----
From: "Jérôme Paschoud" <[EMAIL PROTECTED]>
To: <hsqldb-developers@lists.sourceforge.net>
Sent: 08 September 2005 16:07
Subject: Re: [Hsqldb-developers] General Architecture Informations
How could I determine where, in the code, are located the methods that
are doing optional class loading.
For information the BigInteger & BigDecimal can be taken for the first
one at: http://www.bouncycastle.org/ and for the second one:
http://www2.hursley.ibm.com/decimalj/.
The rest of the problem deal with classes that belong to the java.io
package.
In fact the main problem is that I'm unable to see how the things are
working together. I tried to obtain an UML schema from the sources but
the soft crash duting the parsing the files.
I hope, I'm not too anoying with all my questions.
Jerome
fred wrote:
If you're aiming at a memory-only engine, you can remove a lot. All
of > the
IO, starting with org.hsqldb.persist.Log can be removed. If you don't
have
JDBC, java.sql is not needed apart from java.sql.Connection, which
you > can
replace with org.hsqldb.SessionInterface. The java.lang.reflect usage
can
also be removed when you don't use optional class loading, such as
user-defined functions. There is an opensource java.math.BigDecimal
substitute somewhere on the net.
Fred
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