Extention of struts - BeanFactory
Hello struts-user, I am glad to publish pre-alpha version of BeanFactory - extention of struts framework, intended to simplify processes of data publishing. Main idea of it - to move functionality to declarations. You can find short info about BeanFactory, sources, precompiled binaries and sample web allication (needs some configure in database access) at page - http://www.sura.ru/~gonza/bean-factory -- Best regards, Oleg mailto:[EMAIL PROTECTED]
Re[2]: Proposed feature: Bean property transformations
Hello Ted, Saturday, June 02, 2001, 1:30:00 AM, you wrote: TH Harris, Andrew S wrote: A component would be able to hold a text value and a data value. The text value could hold the value entered by the user, prior to validation, then this could be played back to the user if validation failed on that component. If validation succeeded, the data value would be updated, then the text value would be replaced by the formatted value, using the data value and the formatter. TH This is a good design pattern, and one we can use with Struts today. In TH the ActionForm bean, define two properties, one for the text value and TH one for the data value. If validation succeeds, convert the text value TH to the data value, and (optionally) update the text value to match your TH preferred formatting. TH Though, with a general conversion/transformation package, we would TH really only need to store the desired data value since we could TH transform it again later when the value was accessed for presentation, TH perhaps via a bean:writeTransform tag. What reason to store text values and data values in ActionForm? I think that more flexible approach is to use ActionForm with text only fields and data bean with native types, not String. In this case we can name all corresponded fields in data bean with same names as for ActionForm and use convert methods under it, for example, or use another convert methods. We can convert text values to/from with one of the ways - 1. Perform conversion of all fields in some method in ActionForm, for example import/export. 2. Make it in every setter/getter. 3. Write special helper class to perform conversion - in this case more flexible approach can be used - one helper can handle multiple sources and targets. -- Best regards, Olegmailto:[EMAIL PROTECTED]
Re: Format on the JSP pages
In addition to Craig's comment, if you decide to use the Jakarta Taglibs
project http://jakarta.apache.org/taglibs , you can this on your JSP page.
%@ taglib uri=http://jakarta.apache.org/taglibs/datetime-1.0; prefix=dt
%
dt:format pattern=EEE MMM d, bean:write name=curForm
property=startDateTime//dt:format
In the above example my bean contain the following method
public long getStartDateTime() {
//
// return the Calender.getTime() component;
};
Cheers
Michael Mok
www.webappcabaret.com/teatimej
- Original Message -
From: Craig R. McClanahan [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Cc: Joyce Tang [EMAIL PROTECTED]
Sent: Saturday, June 02, 2001 12:29 PM
Subject: RE: Format on the JSP pages
On Mon, 21 May 2001, Joyce Tang wrote:
Sorry if I didn't make it clear. What I am asking is how to format a
embedded attibute?
There isn't any particular support for formatting within the Struts tags
at the moment. However, there is a formatting library in the Jakarta
Taglibs project http://jakarta.apache.org/taglibs that might help.
Craig
-Original Message-
From: Joyce Tang
To: '[EMAIL PROTECTED]'
Sent: 5/21/01 2:13 PM
Subject: Format on the JSP pages
One property of my form is a customer object.
So in the JSP page, I am displaying them as:
bean:write name=Customer property=customer.dateOfBirth
scope=request filter=true/
How should I format it?
Thanks
Re: Extention of struts - BeanFactory
On Sat, 2 Jun 2001, Oleg V Alexeev wrote: Hello struts-user, I am glad to publish pre-alpha version of BeanFactory - extention of struts framework, intended to simplify processes of data publishing. Main idea of it - to move functionality to declarations. You can find short info about BeanFactory, sources, precompiled binaries and sample web allication (needs some configure in database access) at page - http://www.sura.ru/~gonza/bean-factory -- Best regards, Oleg mailto:[EMAIL PROTECTED] To keep things organized, can I ask a favor? Can we have discussions of 1.1 feature design on the STRUTS-DEV list? The STRUTS-USER list has lots of traffic about using Struts already, and talking about the new stuff here will be a little distracting. Anyone, of course, is welcome to subscribe to STRUTS-DEV to participate in (or just lurk on) the discussions of the new features. Craig
struts:parameter tag
Hi. In previous releases of struts we have the tag struts:parameter name=paramName that will render a request parameter, encoding special HTML characters. We can do this without a tag with (i am ignoring null pointer exception) %= ResponseUtils.filter( request.getParameter(paramName)) % Is this tag being removed from 1.0? -- Bruno Antunes, Java Software Engineer email: mailto:[EMAIL PROTECTED] Phone: +351.21.7994200 Fax : +351.21.7994242 WhatEverSoft - Java Center Centro de Competencia Java Praca de Alvalade, 6 - Piso 4 1700-036 Lisboa - Portugal URL: http://www.whatevernet.com _ INTERNET MAIL FOOTER A presente mensagem pode conter informação considerada confidencial. Se o receptor desta mensagem não for o destinatário indicado, fica expressamente proibido de copiar ou endereçar a mensagem a terceiros. Em tal situação, o receptor deverá destruir a presente mensagem e por gentileza informar o emissor de tal facto. - Privileged or confidential information may be contained in this message. If you are not the addressee indicated in this message, you may not copy or deliver this message to anyone. In such case, you should destroy this message and kindly notify the sender by reply email. -
Re: struts:parameter tag
On Sat, 2 Jun 2001, Bruno Antunes wrote: Hi. In previous releases of struts we have the tag struts:parameter name=paramName that will render a request parameter, encoding special HTML characters. We can do this without a tag with (i am ignoring null pointer exception) %= ResponseUtils.filter( request.getParameter(paramName)) % Is this tag being removed from 1.0? It sounds like you are still using the Struts 0.5 tags (from TLD file /WEB-INF/struts.tld). You should be converting your programs to use the 1.0-compatible tag libraries (struts-bean.tld, struts-html.tld, struts-logic.tld, and struts-template.tld). The 1.0 approach to this requirement would be: bean:parameter id=bean name=paramName value=defaultvalue/ bean:write name=bean/ Besides setting a default value (if the parameter is missing) as I did above, you can also avoid null pointer exceptions by using logical comparisons to detect the presence or absence of request parameters: logic:present parameter=paramName ... The parameter is present ... /logic:present logic:notPresent parameter=paramName ... The parameter is not present ... /logic:notPresent -- Bruno Antunes, Java Software Engineer Craig McClanahan
Re[2]: Extention of struts - BeanFactory
Hello Craig, Saturday, June 02, 2001, 7:41:43 PM, you wrote: CRM To keep things organized, can I ask a favor? Can we have discussions of CRM 1.1 feature design on the STRUTS-DEV list? The STRUTS-USER list has lots CRM of traffic about using Struts already, and talking about the new stuff CRM here will be a little distracting. CRM Anyone, of course, is welcome to subscribe to STRUTS-DEV to participate in CRM (or just lurk on) the discussions of the new features. Yes, of course, Craig. -- Best regards, Olegmailto:[EMAIL PROTECTED]
Client/Server Side Validation for Struts 1.1
I'd like to get a discussion started on the client/standard validations for Struts 1.1. I thought it would be good to talk about what basic features it would include and implementation. Here are the descriptions from the To Do list for 1.1. Standard Validations. Add the ability to configure standard validations on particular properties to be enforced by the controller servlet automatically. Where feasible, client-side JavaScript validations may also be generated based on the same configuration rules. Client Side Validation. Add the ability to automatically generate optional JavaScript code to perform client-side validations for things like required fields, numeric fields, dates/times/timestamps, and so on. The required validation should mesh with validation enhancements provided in the controller servlet itself. Nic Hobbs and I have both volunteered for the Standard (Server Side) Validations and Ted Husted, Nic Hobbs, Spencer Smith and I have volunteered for the Client Validations (JavaScript). Ted has been using a validation framework I've done on a project (I'm not sure what version). It lets you define your validation rules in an xml file. It supports internationalized rules for a form and internationalized messages. It has basic support for creating JavaScript methods that can do what a server side method does. The code, documentation, and example webapps are posted here. And of course Struts is welcome to the source code if everyone thinks that what I've done so far is good foundation to start on. http://home.earthlink.net/~dwinterfeldt/ If any of the other volunteers have started something, I'd like to see it and I'm sure everyone has ideas for the design. I'd go into more detail about everything I've done, but it is probably easier for anyone interested to go to my site and read the documentation and javadocs posted there. David Winterfeldt http://home.earthlink.net/~dwinterfeldt/ __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/
Re: Problem in struts-example accessing ApplicationResources
The only place that struts.jar should exist is in WEB-INF\lib.Don't put it in the CLASSPATH. Don't put it in TOMCAT\LIB. Don't modify BAT files to include it. Just deploy struts-example.war to TOMCAT\WEBAPPS and everything will be fine. -- Dan Miser http://www.distribucon.com - Original Message - From: MarNette Enterprises, Inc. To: [EMAIL PROTECTED] Sent: Saturday, June 02, 2001 10:12 PM Subject: Problem in struts-example accessing ApplicationResources I am evaluating Struts as a development environment and I am having trouble getting the struts example to run. As I have found some other users are experiencing similar problems when running the example application the following message appears: "javax.servlet.ServletException: Exception thrown processing JSP page. javax.servlet.JspException: Missing message for key index.title".
Struts 1.0-beta-3 Released
Struts 1.0-beta-3 is a release candidate version of the Struts Framework, likely to be the final beta prior to the Struts 1.0 Final Release, which is currently scheduled for June 15, 2001. Please help identify any remaining bugs that need to be fixed prior to final release, and report them to our bug tracking system at: http://nagoya.apache.org/bugzilla/ The binary distribution of Struts 1.0-beta-3 is available at: http://jakarta.apache.org/builds/jakarta-struts/release/v1.0-b3/ The source distribution of Struts 1.0-beta-3 is available at: http://jakarta.apache.org/builds/jakarta-struts/release/v1.0-b3/src/ Craig McClanahan
Credit card validation FYI
You all probably know about this but I thought I would send it anyway. http://www.beachnet.com/~hstiles/cardtype.html MOD-10 is an algorithm that is used by almost any credit card company togenerate / validate credit cards.How it works?First you have to know what kind of credit card you have.You can find itoutby looking at the first(leftmost) number of it.This is what itmeans:3= American Express4 = Visa5 = Mastercard etc.The algorithm goes as follows : go from right to left and multiply everysecond digit by 2.If the result of themultiplication is greater than 9 , subtract 9 from it.(ex. if 16 then 16 -9 = 7).Thenn add the result to the sum.All other numbers of the card don't need to be multiplied , just add themto the sum..When on the end (sum mod 10) = 0 ,the card is valid.In otherwords it means that the sum must be a multiple of 10 (10,20,30).Example:5 4 2 4 1 8 0 0 2 6 7 6 9 0 0 5---1+4+4+4+2+8+0+0+4+6+5+6+9+0+0+5 = 58This card of course isn't valid because the sum (58) isn't a multiple of10.How to generate cards?Well if you want to generate cards , you first have to decide what type ofcards.If you would decide for a Mastercard, then the first number would bea constant of 5.Therefore we will have to go from left to right to generatecards.The sum will have a value of 1 on the beginning (see example).Thengenerate random numbers up to the 15th digit.Like described above, multiplyevery second number and add all results together to a sum.Then calculatethe last number (checksum): if sum is a multiple of ten, then the 16thnumber (checksum digit) will be 0.Otherwise substract the sum from the nexthighest multiple of 10.In the example above we would say : 60 - 53 = 7.Therefore the last digit is7 and not 5.You could do that in pascal by saying : last_number:=10 - (summod 10) ;Now someone might say that he could generate as many cards as he wants andcould misuse them.But that's not the truth.Many online verificationservices will also check your user info and expiration date with your bank,which of course can't be generated by this program.I've however heardmyself that there are many small companies(XXX - sites,Online downloads)which still use only MOD-10 scripts for validation.
