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using boolean flags [message #651349]

Sat, 29 January 2011 18:00

Messages: 77
Registered: July 2009

Member

I am changing the default values for the "Boolean Flags Field" property to eFlags and the "Boolean Flags Reserved Bits" to 8, but no code changes occur when I re-generate the model and edit code. Do these properties only affect code that is generated for the first time? Do I need to delete any class before I generate the code again after changing these properties?

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Re: using boolean flags [message #651352 is a reply to message #651349]

Sat, 29 January 2011 18:17

Eike Stepper

Messages: 6690
Registered: July 2009

Senior Member

Am 29.01.2011 19:00, schrieb AJ:
> I am changing the default values for the "Boolean Flags Field" property to eFlags and the "Boolean Flags Reserved Bits" to 8, but no code changes occur when I re-generate the model and edit code. Do these properties only affect code that is generated for the first time? Do I need to delete any class before I generate the code again after changing these properties?
Just a rough guess: The number of EMF internal flags plus your 8 bits does not require to add to the exising 32 bits of the default int. But who knows. What problem are you experiencing?

Cheers
/Eike

----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper

Cheers
/Eike

----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper

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Re: using boolean flags [message #651359 is a reply to message #651352]

Sat, 29 January 2011 19:21

Messages: 77
Registered: July 2009

Member

Hallo Eike,

I have a large resource and I'm try to improve the loading time performance before I look into other options like creating proxy references or CDO.

The resource is pretty static since it's used as a template to create instances from. It's loaded into a tree viewer and only the top group nodes are displayed so it'll be great if I can load the content on-demand when a node is selected.

I'm not sure if CDO will be an over-kill, but I definitely would like to hear your comment or suggestion.

Thanks!

[Updated on: Sat, 29 January 2011 19:23]

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Re: using boolean flags [message #651371 is a reply to message #651349]

Sun, 30 January 2011 00:29

Ed Merks

Messages: 33218
Registered: July 2009

Senior Member

This is a multi-part message in MIME format.
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Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit

AJ,

Do you have features of type EBoolean? I'd expect generated methods to
look like this from ETypedElementImpl:

/**
* 
* 
* @generated
*/
public boolean isUnique()
{
return (eFlags & UNIQUE_EFLAG) != 0;
}

AJ wrote:
> I am changing the default values for the "Boolean Flags Field"
> property to eFlags and the "Boolean Flags Reserved Bits" to 8, but no
> code changes occur when I re-generate the model and edit code. Do
> these properties only affect code that is generated for the first
> time? Do I need to delete any class before I generate the code again
> after changing these properties?

--------------090903070306000405020304
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: 8bit

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
AJ, 
 
Do you have features of type EBoolean? I'd expect generated methods to
look like this from ETypedElementImpl: 

<blockquote> /** 
 *  
 *  
 * @generated 
 */ 
public boolean isUnique() 
{ 
 return (eFlags & UNIQUE_EFLAG) != 0; 
} 
</blockquote>
 
AJ wrote:
<blockquote cite="mid:ii1k8i$hen$1@news.eclipse.org" type="cite">I am
changing the default values for the "Boolean Flags Field" property to
eFlags and the "Boolean Flags Reserved Bits" to 8, but no code changes
occur when I re-generate the model and edit code. Do these properties
only affect code that is generated for the first time? Do I need to
delete any class before I generate the code again after changing these
properties?
 
</blockquote>
</body>
</html>

--------------090903070306000405020304--

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: using boolean flags [message #651380 is a reply to message #651359]

Sun, 30 January 2011 06:53

Eike Stepper

Messages: 6690
Registered: July 2009

Senior Member

Am 29.01.2011 20:21, schrieb AJ:
> Hallo Eike,
>
> I have a large resource and I'm try to improve the loading time performance before I look into other options like creating proxy references or CDO.
>
> The resource is pretty static since it's used as template to create instances from. It's loaded into a tree viewer and only the top group nodes are displayed so it will be great if I can load the content on-demand when a node is selected.
Sounds to me as if containment proxies or normal cross references could help.

>
> I'm not sure if CDO will be an over-kill, but I definitely would like to hear your comment or suggestion.
Hard to say if CDO is the best solution for your challenges. CDO solves so many problems, scalability, multi-threading, fine-grained transactionality, distribution, persistence among them. On the other hand a multi-user environment comes with some new concepts like invalid objects due to remote deletion. All I can say here is: it's easy to try out. There are tutorials in the wiki, presentations on the homepage, etc.

Cheers
/Eike

----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper

Cheers
/Eike

----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper

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