Best Practice for Searching HTML Source

Hello
What is the best way to search the content of html files?
These would be files I create.
I have tried to use SpotLight but it's not up to it.
The best thing I have found thus far is Multi-File Search in BBEdit.
There I find my annotations under '/* NOTES:'
Thanks

Thanks for the response, but unfortunately the provided links are not much help:
- The first link is about an article I don't have access to (i'm not a registered user)
- The second link is about Integration Services. This is nice for Integration stuff, but I need to have a functionality within a frontend.
- The third link is for use in Excel.
Maybe I'm looking for the wrong thing when wanting to create an extra column with "cleaned" up data. Maybe there's another solution from within my frontend or business layer, but I simply want a textbox on a form where users can type a search-value like
"BAKKER". The result of the search should return names like "DEBACKER", "DE BEKKER", "BACKER", "BAKRE", ...
I used to work in a hospital where they wrote their own SQL-function (on an Interbase database) to do this: They had a column with the original name, and a column with a converted name:
=> DEBACKER => Converted = DEBAKKER
=> DE BEKKER => Converted = DEBEKKER
=> BACKER => Converted = BAKKER
=> BAKRE => Converted = BAKKER
When you searched for "BAKKER", you did a LIKE operation on the converted column ...
What I am looking for is a good function to convert my data as above.
Greetz,
Tim

Similar Messages

Best practices for search service in a sharepont farm

Hi
in a sharepoint web application there is many BI dashboards are deployed and also we have plan to
configure enterprise search for this application.
in our sharepoint 2010 farm we have
2 application server s
2 WFE servers
here one application server is running
c.a + webanalytics service and itself is a domain controller
second application server is for only running secure store service+ Performance point service only
1 - here if we run search server service in second application server can any issues to BI performance and
2 - its best practice to run Performance point service and search service in one server
3 -also is it best practice to run search service in a such a application server where already other services running
and where we have only one share point web application need to be crawled and indexed with below crawl schedule.
here we only run full crawl per week and incremental crawl at midnight daily
adil

Hi adil,
Based on your description, you want to know the best practices for search service in a SharePoint farm.
Different farms have different search topologies, for the best search performance, I recommend that you follow the guidance for small, medium, and large farms.
The article is about the guidance for different farms.
Search service can run with other services in the same server, if condition permits and you want to have better performance for search service and other services including BI performance, you can deploy search service in dedicated server.
If condition permits, I recommend combining a query component with a front-end Web server to avoid putting crawl components and query components on the same serve.
In your SharePoint farm, you can deploy the query components in a WFE server and the crawl components in an application server.
The articles below describe the best practices for enterprise search.
https://technet.microsoft.com/en-us/library/cc850696(v=office.14).aspx
https://technet.microsoft.com/en-us/library/cc560988(v=office.14).aspx
Best regards
Sara Fan
TechNet Community Support

Best practice for searching on surname/lastname/name in Dutch

I'm looking for a best practice to store names of persons, but also names of companies, in my database.
I always store them as is (seems logical since you need to be able to display the original input-name) but I also want to store them transformed in some sort of way so I can easily search on them with LIKE! (Soundex, Metaphone, Q-Gram, ...)
I know SOUNDEX and DIFFERENCE are included in SQLServer, but they don't do the trick.
If somebody searches for the phrase "BAKKER", you should find names like "Backer", "Bakker", ... but also "De Backer", "Debecker", ... and this is where SOUNDEX fails ...
Does someone know some websites to visit, or someone already wrote a good function to transform a string that I can use to store the names but also to transform my search data?
(Example: (Pseudo lang :-))
function MakeSearchable (sString)
sString = sString.Replace(" ", ""); //Remove spaces
sString = sString.Replace("CK", "K");
sString = sString.Replace("KK", "K");
sString = sString.Replace("C", "S");
sString = sString.Replace("SS", "S");
return sString;
Greetz,
Tim

Thanks for the response, but unfortunately the provided links are not much help:
- The first link is about an article I don't have access to (i'm not a registered user)
- The second link is about Integration Services. This is nice for Integration stuff, but I need to have a functionality within a frontend.
- The third link is for use in Excel.
Maybe I'm looking for the wrong thing when wanting to create an extra column with "cleaned" up data. Maybe there's another solution from within my frontend or business layer, but I simply want a textbox on a form where users can type a search-value like
"BAKKER". The result of the search should return names like "DEBACKER", "DE BEKKER", "BACKER", "BAKRE", ...
I used to work in a hospital where they wrote their own SQL-function (on an Interbase database) to do this: They had a column with the original name, and a column with a converted name:
=> DEBACKER => Converted = DEBAKKER
=> DE BEKKER => Converted = DEBEKKER
=> BACKER => Converted = BAKKER
=> BAKRE => Converted = BAKKER
When you searched for "BAKKER", you did a LIKE operation on the converted column ...
What I am looking for is a good function to convert my data as above.
Greetz,
Tim

Best practice for sharing html content on different group spaces?

How can html content be shared between several group spaces?
One way I have found is to add a html doc to ucm and then to add this doc as a iframe to a page.
Are there other ways, like adding on one group space page a html layout element and then to view this content in a different space. How could this be done, with an expression language reference?
Has someone experience in presenting the same html content on different spaces and can share how he does it. Any ideas are welcome.
Thanks,
Max

Hey Max,
Check out our technical whitepaper on Integrating ECM with Portal Technologies.
Our "Fishbowl Portlets" allow you to share any content - HTML, WYSIWYG user generated content, documents etc - in multiple contexts (portlets, web apps, etc).
This is one of the things that we showcased as the recent Collaborate conference in Vegas - WebCenter framework, UCM and the portlets surfacing the same items in different contexts - all personalization aware, configurable and end user/super user editable.
The white paper can be found here:
http://www.fishbowlsolutions.com/StellentSolutions/ContentManagementResources/index.htm
A blog post on it can be found here:
http://cfour.fishbowlsolutions.com/2010/03/10/fishbowl-portlets-followup-cis-and-content-consumption-options/
warmly,
Billy Cripe
Fishbowl Solutions

BEST PRACTICE FOR AN EFFICIENT SEARCH FACILITY

Good Morning,
Whilst in Training, our Trainer said that the most efficiency from the Sharpoint Search would be to install the Search Facility on a separate server (hardware).
Not sure how to have this process done.
Your advice and recommendation would be greatly appreciated.
thanks a mil.
NRH

Hi,
You can
create a dedicated search server that hosts all search components, query and index role, and crawl all on one physical server.
Here are some article for your reference:
Best practices for search in SharePoint Server 2010:
http://technet.microsoft.com/en-us//library/cc850696(v=office.14).aspx
Estimate performance and capacity requirements for SharePoint Server 2010 Search:
http://technet.microsoft.com/en-us/library/gg750251(v=office.14).aspx
Below is a similar post for your reference:
http://social.technet.microsoft.com/Forums/en-US/be5fcccd-d4a3-449e-a945-542d6d917517/setting-up-dedicated-search-and-crawl-servers?forum=sharepointgeneralprevious
Best regards
Wendy Li
TechNet Community Support

Best practices for deploying forms in a 'cluster'?

Anyone know of any public docs that discuss typical best practices for
- forms deployment;
- forms apps management and version control; and/or
- deploying (and keeping) the .frm/frx in sync when using multiple forms servers in a HA or load balancing envrionment?

Hi adil,
Based on your description, you want to know the best practices for search service in a SharePoint farm.
Different farms have different search topologies, for the best search performance, I recommend that you follow the guidance for small, medium, and large farms.
The article is about the guidance for different farms.
Search service can run with other services in the same server, if condition permits and you want to have better performance for search service and other services including BI performance, you can deploy search service in dedicated server.
If condition permits, I recommend combining a query component with a front-end Web server to avoid putting crawl components and query components on the same serve.
In your SharePoint farm, you can deploy the query components in a WFE server and the crawl components in an application server.
The articles below describe the best practices for enterprise search.
https://technet.microsoft.com/en-us/library/cc850696(v=office.14).aspx
https://technet.microsoft.com/en-us/library/cc560988(v=office.14).aspx
Best regards
Sara Fan
TechNet Community Support

HTML and CSS Best Practices for Eloqua?

Hello Topliners Community,
My name is Ben and I am a Web Designer. I am currently looking for any guidance on HTML and CSS best practices when working with Eloqua. I am interested in the best practices for e-mail and landing pages.
Thank you,
Ben

Personally I like to upload my custom created html/css into Eloqua instead of using the WYSIWYG.
But if you must then right clicking on text boxes and click edit source is the way to go.
There was a good discussion on editing your forms with CSS:
Energize Your Eloqua10 Forms with CSS
created by Ryan Wheler on Nov 2, 2012 8:44 AM, last modified by Greg Stotler on Sep 19, 2013 2:00 PM
Version 2
CSS can be used to heavily customize the layout of forms in Eloqua10. In this article we will provide sample cover some common formatting use cases on Eloqua10 Landing Pages. Further details about uses of CSS in Eloqua10 form templates can be found here: EE12 - Do It - Eloqua - Energize E10 Forms
Eloqua10 Forms HTML Structure
Below is an outline of the structure of the HTML generated by Eloqua when a form is added to a landing page. By targeting the HTML classes highlighted below, we can control the layout of any form on your landing page.
For the rest of page: http://topliners.eloqua.com/docs/DOC-3015

Best Practice For Referencing JPEG Path Using Servlets To Prepare HTML IMG

I am migrating a legacy app from Tomcat 5 to Weblogic 11g (10.3). In the legacy app, servlets write HTML that uses relative paths for <IMG src="../images/img.jpeg"> and <script src="../javascript/js.js">. The app is deployed as an exploded archive. Unfortunately, none of the images or script are being loaded. I've tried using http://serverIP:portNum/contextName/images/img.jpeg"> but it doesn't work. I've also checked to get the name of the context in the servlet and it's the root context. Could it have something to do with me having to append .war onto the application when I deploy it? Would it help if I deployed it as a war inside an ear? Basically, I want some best practices for doing this on Weblogic 11g. There are a lot of images and javascript and I'm really hoping they don't have to be inserted using ClassLoader.getResourceAsStream()... thank you.

Best Practice:
1. Move Static files like images, css, java scripts to a web server infrastructure if available.
2. If this is not your case, then please send your directory information how you have packaged your EAR. I can advice :)

What is the best practice for inserting (unique) rows into a table containing key columns constraint where source may contain duplicate (already existing) rows?

My final data table contains a two key columns unique key constraint. I insert data into this table from a daily capture table (which also contains the two columns that make up the key in the final data table but are not constrained
(not unique) in the daily capture table). I don't want to insert rows from daily capture which already exists in final data table (based on the two key columns). Currently, what I do is to select * into a #temp table from the join
of daily capture and final data tables on these two key columns. Then I delete the rows in the daily capture table which match the #temp table. Then I insert the remaining rows from daily capture into the final data table.
Would it be possible to simplify this process by using an Instead Of trigger in the final table and just insert directly from the daily capture table? How would this look?
What is the best practice for inserting unique (new) rows and ignoring duplicate rows (rows that already exist in both the daily capture and final data tables) in my particular operation?
Rich P

Please follow basic Netiquette and post the DDL we need to answer this. Follow industry and ANSI/ISO standards in your data. You should follow ISO-11179 rules for naming data elements. You should follow ISO-8601 rules for displaying temporal data. We need
to know the data types, keys and constraints on the table. Avoid dialect in favor of ANSI/ISO Standard SQL. And you need to read and download the PDF for:
https://www.simple-talk.com/books/sql-books/119-sql-code-smells/
>> My final data table contains a two key columns unique key constraint. [unh? one two-column key or two one column keys? Sure wish you posted DDL] I insert data into this table from a daily capture table (which also contains the two columns that make
up the key in the final data table but are not constrained (not unique) in the daily capture table). <<
Then the "capture table" is not a table at all! Remember the fist day of your RDBMS class? A table has to have a key. You need to fix this error. What ETL tool do you use?
>> I don't want to insert rows from daily capture which already exists in final data table (based on the two key columns). <<
MERGE statement; Google it. And do not use temp tables.
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL

Best practices for setting up projects

We recently adopted using Captivate for our WBT modules.
As a former Flash and Director user, I can say it’s
fast and does some great things. Doesn’t play so nice with
others on different occasions, but I’m learning. This forum
has been a great source for search and read on specific topics.
I’m trying to understand best practices for using this
product. We’ve had some problems with file size and
incorporating audio and video into our projects. Fortunately, the
forum has helped a lot with that. What I haven’t found a lot
of information on is good or better ways to set up individual
files, use multiple files and publish projects. We’ve decided
to go the route of putting standalones on our Intranet. My gut says
yuck, but for our situation I have yet to find a better way.
My question for discussion, then is: what are some best
practices for setting up individual files, using multiple files and
publishing projects? Any references or input on this would be
appreciated.

Hi,
Here are some of my suggestions:
1) Set up a style guide for all your standard slides. Eg.
Title slide, Index slide, chapter slide, end slide, screen capture,
non-screen capture, quizzes etc. This makes life a lot easier.
2) Create your own buttons and captions. The standard ones
are pretty ordinary, and it's hard to get a slick looking style
happening with the standard captions. They are pretty easy to
create (search for add print button to learn how to create
buttons). There should instructions on how to customise captions
somewhere on this forum. Customising means that you can also use
words, symbols, colours unique to your organisation.
3) Google elearning providers. Most use captivate and will
allow you to open samples or temporarily view selected modules.
This will give you great insight on what not to do and some good
ideas on what works well.
4) Timings: Using the above research, I got others to
complete the sample modules to get a feel for timings. The results
were clear, 10 mins good, 15 mins okay, 20 mins kind of okay, 30
mins bad, bad, bad. It's truly better to have a learner complete
2-3 short modules in 30 mins than one big monster. The other
benefit is that shorter files equal smaller size.
5) Narration: It's best to narrate each slide individually
(particularly for screen capture slides). You are more likely to
get it right on the first take, it's easier to edit and you don't
have to re-record the whole thing if you need to update it in
future. To get a slicker effect, use at least two voices: one male,
one female and use slightly different accents.
6) Screen capture slides: If you are recording filling out
long window based databse pages where the compulsory fields are
marked (eg. with a red asterisk) - you don't need to show how to
fill out every field. It's much easier for the learner (and you) to
show how to fill out the first few fields, then fade the screen
capture out, fade the end of the form in with the instructions on
what to do next. This will reduce your file size. In one of my
forms, this meant the removal of about 18 slides!
7) Auto captions: they are verbose (eg. 'Click on Print
Button' instead of 'Click Print'; 'Select the Print Preview item'
instead of 'Select Print Preview'). You have to edit them.
8) PC training syntax: Buttons and hyperlinks should normally
be 'click'; selections from drop down boxes or file lists are
normally 'select': Captivate sometimes mixes them up. Instructions
should always be written in the correct order: eg. Good: Click
'File', Select 'Print Preview'; Bad: Select 'Print Preview' from
the 'File Menu'. Button names, hyperlinks, selections are normally
written in bold
9) Instruction syntax: should always be written in an active
voice: eg. 'Click Options to open the printer menu' instead of
'When the Options button is clicked on, the printer menu will open'
10) Break all modules into chapters. Frame each chapter with
a chapter slide. It's also a good idea to show the Index page
before each chapter slide with a progress indicator (I use an
animated arrow to flash next to the name of the next chapter), I
use a start button rather a 'next' button for the start of each
chapter. You should always have a module overview with the purpose
of the course and a summary slide which states what was covered and
they have complete the module.
11) Put a transparent click button somewhere on each slide.
Set the properties of the click box to take the learner back to the
start of the current chapter by pressing F2. This allows them to
jump back to the start of their chapter at any time. You can also
do a similar thing on the index pages which jumps them to another
chapter.
12) Recording video capture: best to do it at normal speed
and be concious of where your mouse is. Minimise your clicks. Most
people (until they start working with captivate) are sloppy with
their mouse and you end up with lots of unnecessarily slides that
you have to delete out. The speed will default to how you recorded
it and this will reduce the amount of time you spend on changing
timings.
13) Captions: My rule of thumb is minimum of 4 seconds - and
longer depending on the amount of words. Eg. Click 'Print Preview'
is 4 seconds, a paragraph is longer. If you creating knowledge
based modules, make the timing long (eg. 2-3 minutes) and put in a
next button so that the learner can click when they are ready.
Also, narration means the slides will normally be slightly longer.
14) Be creative: Capitvate is desk bound. There are some
learners that just don't respond no matter how interactive
Captivate can be. Incorporate non-captivate and desk free
activities. Eg. As part of our OHS module, there is an activity
where the learner has to print off the floor plan, and then wander
around the floor marking on th emap key items such as: fire exits;
first aid kit, broom and mop cupboard, stationary cupboard, etc.
Good luck!

What is the best practice in securing deployed source files

hi guys,
Just yesterday, I developed a simple image cropper using ajax
and flash. After compiling the package, I notice the
package/installer delivers the same exact source files as in
developed to the installed folder.
This doesnt concern me much at first, but coming to think of
it. This question keeps coming out of my head.
"What is the best practice in securing deployed source
files?"
How do we secure application installed source files from
being tampered. Especially, when it comes to tampering of the
source files after it's been installed. E.g. modifying spraydata.js
files for example can be done easily with an editor.

Hi,
You could compute a SHA or MD5 hash of your source files on
first run and save these hashes to EncryptedLocalStore.
On startup, recompute and verify. (This, of course, fails to
address when the main app's swf / swc / html itself is
decompiled)

Best practice for Spark repeating background image in a SkinnableContainer?

In my old Flex 3.5 code I would accomplish this by dropping an Image into a Canvas and hitting the Canvas with some css style stuff to get the repeat. The Image tag had a source property that would take a web address so I could dynamically grab different images from the web based on some conditions. Little bit more trouble with Flex 4.5 and Spark but I'm trying to get there.
Here Adobe docs explain how to *embed* a background image:
http://help.adobe.com/en_US/flex/using/WS422719A4-7849-4921-AF39-57FF567B483B.html#WS063B0 491-B7AB-4b00-A39F-E44310BCB0E0
They use a BitmapFill object in the skin.

    <s:Rect id="background" left="3" top="3" right="3" bottom="3" alpha=".25">
        <s:fill>
            <s:BitmapFill source="@Embed(source='../../assets/myImage.jpg')"/>
        </s:fill>
    </s:Rect>
Problem is I need to do this without embedding the image. In my old code I grabbed the image from web (set source property on Image tag to web address). What's the best practice for achieving this with a skinnable container? The BitmapFill object used above won't take a web address for a source.
Thanks in advance.

Use BitmapImage with a fillMode of repeat:
<s:BitmapImage source="http://www.google.com/intl/en_com/images/srpr/logo2w.png" width="100%" height="100%" scaleMode="stretch" fillMode="repeat" />

Best Practice for Distributing Databases to Customers

I did a little searching and was surprised to not find a best practice document for how to distribute Microsoft SQL Databases. With other database formats, it's common to distribute them as scripts. It seems that feature is rather limited with the built-in
tools Microsoft provides. There appear to be limits to the length of the script. We're looking to distribute a database several GBs in size. We could detach the database or provide a backup, but that has its own disadvantages by limiting what versions
of the SQL Server will accept the database.
What do you recommend and can you point me to some documentation that handles this practice?
Thank you.

Its much easier to distribute schema/data from an older version to a newer one than the other way around. Nearly all SQL Server deployment features supports database version upgrade, and these include the "Copy Database" wizard, BACKUP/RESTORE,
detach/attach, script generation, Microsoft Sync framework, and a few others.
EVEN if you just want to distribute schemas, you may want to distribute the entire database, and then truncate the tables to purge data.
Backing up and restoring your database is by far the most RELIABLE method of distributing it, but it may not be pratical in some cases because you'll need to generate a new backup every time a schema change occurs, but not if you already have an automated
backup/maintenance routine in your environment.
As an alternative, you can Copy Database functionality in SSMS, although it may present itself unstable in some situations, specially if you are distributing across multiple subnets and/or domains. It will also require you to purge data if/when applicable.
Another option is to detach your database, copy its files, and then attach them in both the source and destination instances. It will generate downtime for your detached databases, so there are better methods for distribution available.
And then there is the previously mentioned method of generating scripts for schema, and then using an INSERT statement or the import data wizard available in SSMS (which is very practical and implements a SSIS package internally that can be saved for repeated
executions). Works fine, not as practical as the other options, but is the best way for distributing databases when their version is being downgraded.
With all this said, there is no "best practice" for this. There are multiple features, each offering their own advantages and downfalls which allow them to align to different business requirements.

Best Practice For Working on Composite In Team

Hello,
I would like to know what is the best practice for working on a single composite by mutiple members in a team.
We have a core services module wherein a single composite contains many services. So, to complete in time, we would like many members to work on it simultaneously.
In such scenarios, if some one adds a new adapter or some other services, composite.xml changes.
Saving it would override other member's changes. Also, it is not possible to apply lock simultaneously on the same file through some version control mechanism.
Please let us know what should be the best practice in such scenarios.
Thanks-
Ashish

You can very well use a version control software with JDev. You may refer -
http://www.oracle.com/technetwork/articles/soa/jimerson-config-soa-355383.html
I think without version control mechanism (like subversion) it won't be easy to work in a multi-developer environment. If you really don't have a source and version control mechanism then manual merging will be required which may be error prone and time & effort consuming.
Regards,
Anuj

"Best practice" for components calling components on different panels.

I'm very new to Swing. I have been learning from tutorials, but these are always relatively simple interfaces , in which every component and container is initialised and added in the constructor of a main JFrame (extension) object.
I would assume that more complex, real-world examples would have JPanels initialise themselves. For example, I am working on a project in which the JFrame holds multiple JPanels. One of these Panels holds a group of JToggleButtons (grouped in a ButtonGroup). The action event for each button involves calling the repaint method of one of the other Panels.
Obviously, if you initialise everything in the JFrame, you can simply have the ActionListener refer to the other JPanel directly, by making the ActionListener a nested class within the JFrame class. However, I would like the JPanels to initialise their own components, including setting the button actions, by using an extension of class JPanel which includes the ActionListeners as nested classes. Therefore the ActionListener has no direct access to JPanel it needs to repaint.
What, then, is considered "best practice" for allowing these components to interact (not simply in this situation, but more generally)? Should I pass a reference to the JPanel that needs to be repainted to the JPanel that contains the ActionListeners? Should I notify the main JFrame that the Action event has fired, and then have that call "repaint"? Or is there a more common or more correct way of doing this?
Similarly, one of the JPanels needs to use a field belonging to the JFrame that holds it. Should I pass a reference to this object to the JPanel, or should I have the JPanel use "getParent()", or some other method?
I realise there are no concrete answers to this query, but I am wondering whether there are accepted practices for achieving this. My instinct is to simply pass a JPanel reference to the JPanel that needs to call repaint, but I am unsure how extensible this would be, how tightly coupled these classes would become.
Any advice anybody could give me would be much appreciated. Sorry the question is so long-winded. :)

Hello,
nice to get feedback.
I've been looking at a few resources on this issue from my last post. In my application I have been using the Observer and Observable classes to implement the MVC pattern suggested by T.PD.(...)
Two issues (not fatal, but annoying) with this are:
-Observable is a class, not an interface; since most of my Observers already extend JPanel (or some such), I have had to create inner classes.
-If an Observer is observing multiple Observables, it will have to determine which Observer called its update() method (by using reference equality or class comparison or whatever). Again, a very minor issue, but something to keep in mind.I don't deem those issues are minor. The second one in particular, is rather annoying in terms of maintenance ("Err, remind me, which widget is calling this "update()" method?").
In addition to that, the Observable/Observer are legacy non-generified classes, that incurr a loosely-typed approach (the subject and context arguments to the update(Observable subject, Object context) methods give hardly any info in themselves, and they generally have to be cast to provide app-specific information.
Note that the "notification model" from AWT and Swing widgets is not Observer-Observable, but merely EventListener . Although we can only guess what reasons made them develop a specific notification model, I deem this essentially stems from those reasons.
The contrasting appraoches are discussed in this article from Bill Venners: The Event Generator Idiom (http://www.artima.com/designtechniques/eventgenP.html).
N.B.: this article is from a previous-millenary series of "Design Techniques" articles that I found very useful when I learned OO design (GUI or not).
One last nail against the Observer/Observable model: these are general classes that can be used regardless of the context (GUI/non-GUI code), so this makes it easier to forget about Swing threading rules when using them (essentially: is the update method called in the EDT or not).
If anybody has any information on the performance or efficiency of using Observable/ObserverI would be very surprised if this had any performance impact. If it had, that would mean that you have either:
- a lot of widgets that are listening to one another (and then the Mediator pattern is almost a must to structure such entangled dependencies). And even then I don't think there could be any impact below a few thousands widgets.
- expensive or long-running computation in the update methods. That's unrelated to the notification model itself.
- a lot of non-GUI components that use the Observer/Observable to communicate among themselves - all the more risk then, to have a GUI update() called outside the EDT, see remark above.
(or whether there are inbuilt equivalents for Swing components)See discussion above.
As far as your remark 2 goes (if one observer observes more than one subjects, the update() method contains branching logic) : this also occurs with the Event Delegation model indeed: for example, it is quite common that people complain that their actionPerformed() method becomes unwieldy when the same class listens for several JButtons.
The usual advice for this is, use anonymous listeners, each of which handles the event from only one source (and generally very close in code to the definition of that source), and that simply translates the "generic" event notification method into a specific method call of a Controller or Mediator .
Best regards.
J.
Edited by: jduprez on May 9, 2011 10:10 AM

Best Practice for Searching HTML Source

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