RE: validator for check box
Does any one have any ideas or have written code to validate that at least one item is selected on the check box? Would be interested in the javascript code for the same. On the server side, I can do that validation on the action form, though doing it through struts validator will be the ideal. Wondering why struts doesn't have it? Again, am I missing something? Thanks Jayaraman -Original Message- From: Jayaraman Dorai Sent: Monday, October 27, 2003 2:31 PM To: [EMAIL PROTECTED] Subject: validator for check box Would like to validate that the user selects at least one option in the check box which was created using html-multibox. The struts-validator is not validating the required for a check box. Is there any code for validating the check box or am I missing something? Thanks Jayaraman - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: validator for check box
isValid; } -Original Message- From: Jayaraman Dorai [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 29, 2003 12:49 PM To: Struts Users Mailing List Subject: RE: validator for check box Does any one have any ideas or have written code to validate that at least one item is selected on the check box? Would be interested in the javascript code for the same. On the server side, I can do that validation on the action form, though doing it through struts validator will be the ideal. Wondering why struts doesn't have it? Again, am I missing something? Thanks Jayaraman -Original Message- From: Jayaraman Dorai Sent: Monday, October 27, 2003 2:31 PM To: [EMAIL PROTECTED] Subject: validator for check box Would like to validate that the user selects at least one option in the check box which was created using html-multibox. The struts-validator is not validating the required for a check box. Is there any code for validating the check box or am I missing something? Thanks Jayaraman - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: validator for check box
Yes, I agree, you are right.
-Original Message-
From: Saul Q Yuan [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 29, 2003 2:14 PM
To: 'Struts Users Mailing List'
Subject: RE: validator for check box
This situation happens when the checkboxes and/or radio buttons are
dynamically generated from a database or somewhere. You won't know for
sure that there are going to be more than one checkboxes and radio
buttons, sometimes, you just get one. But in your
application, you want
to have a consistent implementation and make them required
regardless. I
just ran into this situation.
Saul
-Original Message-
From: Jayaraman Dorai [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 29, 2003 2:00 PM
To: Struts Users Mailing List
Subject: RE: validator for check box
Been using an older version of validator-rules, which I had customized
and so the multi-check box wasn't working.
Required for a single-checkbox is not need for an
application, since you
are compelling the user to have that one choice selected. If you have
only one check box and that too is required, you need not ask
an user to
enter them.
-Original Message-
From: Saul Q Yuan [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 29, 2003 1:06 PM
To: 'Struts Users Mailing List'
Subject: RE: validator for check box
I just submitted a bug and submitted a patch as well for
this problem.
Basically, the validator (javascript part) works fine for multiple
checkboxes and radio buttons, but doesn't for a single checkbox or a
single radio button. I modified the validateRequired method
as below,
you'll need to replace this method in the validator-rules.xml file.
Works fine for me.
Saul
-
function validateRequired(form) {
var isValid = true;
var focusField = null;
var i = 0;
var fields = new Array();
oRequired = new required();
for (x in oRequired) {
var field = form[oRequired[x][0]];
if (field.type == 'text' ||
field.type == 'textarea' ||
field.type == 'file' ||
field.type == 'select-one' ||
field.type == 'radio' || // -- true
for single
radio button, Saul Q Yuan ([EMAIL PROTECTED]) 10/28/03
field.type == 'checkbox' || // -- true for
single checkbox, Saul Q Yuan ([EMAIL PROTECTED]) 10/28/03
field.type == 'password') {
var value = '';
// get field's value
if (field.type == select-one) {
var si = field.selectedIndex;
if (si = 0) {
value = field.options[si].value;
}
// -- get value for
checked single radio button or checkbox, Saul Q Yuan
([EMAIL PROTECTED]) 10/28/03
} else if (field.type ==
radio || field.type == checkbox) {
if
(field.checked) {
value =
field.value;
}
} else {
value = field.value;
}
if (trim(value).length == 0) {
if (i == 0) {
focusField = field;
}
fields[i++] = oRequired[x][1];
isValid = false;
}
} else if (field.type == select-multiple) {
var numOptions = field.options.length;
lastSelected=-1;
for(loop=numOptions-1;loop=0;loop--) {
if(field.options[loop].selected) {
lastSelected = loop;
value = field.options[loop].value;
break;
}
}
if(lastSelected 0 ||
trim(value).length == 0)
{
if(i == 0) {
focusField = field;
}
fields[i++] = oRequired[x][1];
isValid=false;
}
} else if ((field.length 0)
(field[0
validator for check box
Would like to validate that the user selects at least one option in the check box which was created using html-multibox. The struts-validator is not validating the required for a check box. Is there any code for validating the check box or am I missing something? Thanks Jayaraman
RE: Tools for Testing
If the struts example could come with examples on how test cases could be written, that will help novices like us. Will having test cases within struts example be beyond the scope? -Original Message- From: Shane Mingins [mailto:[EMAIL PROTECTED] Sent: Thursday, October 09, 2003 10:29 PM To: 'Struts Users Mailing List' Subject: RE: Tools for Testing Also Canoo WebTest is a free open source tool for automated testing of web applications. http://webtest.canoo.com/webtest/manual/WebTestHome.html I am not sure how that compares with HtmlUnit? I had a quick look at StrutsTestCase but (as a novice) could not see how to use it to develop the Struts layer of my application test-first. Shane -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED] Sent: Friday, 10 October 2003 3:22 p.m. To: Struts Users Mailing List Subject: Re: Tools for Testing Adam Hardy wrote: OH NO! Now I have no excuse to ignore testing anymore! Is anybody out there using strutstestcase in anger? So Vic, openSTA - it's for scripting HTTP tests? I read the homepage and it looked like I'd have to do alot of digging to find the basics - how on earth does it verify the test results? Do you scan the returned page? If you're after validating the contents of the returned page, take a look at htmlunit at SourceForge. It turns the response into a sort of DOM that makes finding things pretty easy, and lets you modify field values and click the submit button, and review the result, to simulate a multi-request user interaction. Adam Craig On 10/09/2003 03:58 AM Vic Cekvenich wrote: I just switched to openSTA.sf.net (on a client tip ;-) Nguyen, Hien wrote: Take a look at StrutsTestCase for Junit at www.junit.org. -Original Message- From: Dirk Behrendt [mailto:[EMAIL PROTECTED] Sent: Tuesday, October 07, 2003 5:07 AM To: [EMAIL PROTECTED] Subject: Tools for Testing Hello! There are tools for automatic testing the Struts application? Dirk - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Going from https on /member.do, back to http on index.jsp?
-Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED] Sent: Friday, September 26, 2003 9:38 PM To: Struts Users Mailing List Subject: Re: Going from https on /member.do, back to http on index.jsp? Jayaraman Dorai wrote: -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED] Sent: Thursday, September 25, 2003 10:55 PM To: Struts Users Mailing List Subject: Re: Going from https on /member.do, back to http on index.jsp? Max Cooper wrote: Creating an index.do is one option. If it is not marked as secure, sslext will write an absolute URL back to http:// for it. Many Struts users advocate that all requests should be served by Actions, even if the action merely forwards to a JSP. I actually have a more important concern about doing this -- exposing information to people who can listen in on the packets that go back and forth. Many people would like, for example, to have the login form be secure so that your password is not sent across the wire encrypted, but then go back to http for the rest of the session for the better performance. The seemingly ideal solution is to have the destination of the login submit require SSL, and then switch back. Using a user-transport-guarantee security constraint, you can even let the container worry about the http-https transition for you. Or, you can use things like SSLext that is nicely integrated into Struts. However, the servlet spec offers no help in switching back to http, because it is not a recommended practice. Why? Consider the fact that you now trust subsequent transactions from the same user, and are typically using the session that was established earlier (whether the session was originally created in http or https turns out not to matter). But the session id is no longer encrypted (it's either in a cookie or in rewritten URLs), so it can be easily forged by anyone with a network snooper between you and the server. How do you guarantee that an after-login request on that session is not being sent by someone who is forging the session id because they snooped it? I'm a conservative on security issues -- if I have an app that needs SSL sometimes, I arrange things to never accept a non-SSL request on the same session again, once I've switched to SSL (easy to do with a Filter, for example). If you're concerned enough to protect the password, you should be concerned enough to pay the CPU overhead for SSL the remainder of the session. Otherwise, it's likely that encrypting the login form will just give you a false sense of security. I think you can also use the secure attribute in the sslext tags to indicate whether the target of the link or form should be accessed securely. In this case, you would add secure=false to the sslext:link tag that goes back to /index.jsp. -Max Craig Will it be useful for cases like where credit card information are sent through SSL and hence are secured. They might snoop the session, if it is switched back to http, but still the credit card information is not. Similarly, snooper might steal the sessionId, but the password is not stolen and is secured. Is that not better than nothing? Am I missing something? The credit card information is not going back and forth across the wire unencrypted, but your session identifier is (for servlet based apps, it's normally in a cookie or encoded into the URLs). In at least some ecommerce apps I'm familiar with, the credit card number *is* stored in an HttpSession (or something analogous for non-servlet technologies), so that the customer can go back and buy some more stuff, and do an expedited checkout the second time. If I know that your app works that way, I can snoop the wire until the user goes to https (which I can't read, but can see happening) and then back to http (which I can see). Now, I've got the cleartext version of the session id, assume that the user has gone through the checkout, and can submit false additional purchase transactions to your app based on that session id, without having to resubmit a credit card number. Will adding a checkout page which uses https, displaying the order details and asking the user to see all his order details again and then checking out (through https), make it secure. Essentially, the user can search, add, update and remove the shopping cart in the http mode and having the checkout page(displaying all the orders and then submitting) alone on https not secure enough? If it is not secure enough, will asking for a credit card number again through https solve it? Protecting just the password, but not the remainder of the current session
RE: Going from https on /member.do, back to http on index.jsp?
-Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED] Sent: Thursday, September 25, 2003 10:55 PM To: Struts Users Mailing List Subject: Re: Going from https on /member.do, back to http on index.jsp? Max Cooper wrote: Creating an index.do is one option. If it is not marked as secure, sslext will write an absolute URL back to http:// for it. Many Struts users advocate that all requests should be served by Actions, even if the action merely forwards to a JSP. I actually have a more important concern about doing this -- exposing information to people who can listen in on the packets that go back and forth. Many people would like, for example, to have the login form be secure so that your password is not sent across the wire encrypted, but then go back to http for the rest of the session for the better performance. The seemingly ideal solution is to have the destination of the login submit require SSL, and then switch back. Using a user-transport-guarantee security constraint, you can even let the container worry about the http-https transition for you. Or, you can use things like SSLext that is nicely integrated into Struts. However, the servlet spec offers no help in switching back to http, because it is not a recommended practice. Why? Consider the fact that you now trust subsequent transactions from the same user, and are typically using the session that was established earlier (whether the session was originally created in http or https turns out not to matter). But the session id is no longer encrypted (it's either in a cookie or in rewritten URLs), so it can be easily forged by anyone with a network snooper between you and the server. How do you guarantee that an after-login request on that session is not being sent by someone who is forging the session id because they snooped it? I'm a conservative on security issues -- if I have an app that needs SSL sometimes, I arrange things to never accept a non-SSL request on the same session again, once I've switched to SSL (easy to do with a Filter, for example). If you're concerned enough to protect the password, you should be concerned enough to pay the CPU overhead for SSL the remainder of the session. Otherwise, it's likely that encrypting the login form will just give you a false sense of security. I think you can also use the secure attribute in the sslext tags to indicate whether the target of the link or form should be accessed securely. In this case, you would add secure=false to the sslext:link tag that goes back to /index.jsp. -Max Craig Will it be useful for cases like where credit card information are sent through SSL and hence are secured. They might snoop the session, if it is switched back to http, but still the credit card information is not. Similarly, snooper might steal the sessionId, but the password is not stolen and is secured. Is that not better than nothing? Am I missing something? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
dynamic columns for a jsp
There are around 20 attributes for a business object. The jsp iterates over a collections of this business object and displays them. The user does not want to see all the 20 attributes. Different users may want to see different attributes. This requirement is similar to what outlook provides, the user can select the columns of his inbox. Have build a separate UI to get from the user the different columns he wants to see and store them in the database. The jsp which iterates over the business object, looks untidy now, with a lot of if/else statements. If anyone else have designed something like this, please provide your suggestions. Thanks Jayaraman
RE: dynamic columns for a jsp
Yes, doing the same thing. Some columns requires a different background color and most of them have something different. So, it results in a lot of if statements to check the column. Looking desperately for a good solution. Jayaraman -Original Message- From: Gandle, Panchasheel [mailto:[EMAIL PROTECTED] Sent: Monday, August 04, 2003 11:04 AM To: 'Struts Users Mailing List' Subject: RE: dynamic columns for a jsp We have a very similar situation, haven't done it yet, but planning to have two collection to iterate over. one for the columns, that I know when the user logs in, I would get it from his preferences of columns from DB. other the business objects... is this the same that you are doing or any different? If somebody has a good solution for this, would help Panchasheel -Original Message- From: Jayaraman Dorai [mailto:[EMAIL PROTECTED] Sent: Monday, August 04, 2003 10:47 AM To: [EMAIL PROTECTED] Subject: dynamic columns for a jsp There are around 20 attributes for a business object. The jsp iterates over a collections of this business object and displays them. The user does not want to see all the 20 attributes. Different users may want to see different attributes. This requirement is similar to what outlook provides, the user can select the columns of his inbox. Have build a separate UI to get from the user the different columns he wants to see and store them in the database. The jsp which iterates over the business object, looks untidy now, with a lot of if/else statements. If anyone else have designed something like this, please provide your suggestions. Thanks Jayaraman - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Birthdate validation ?
I had a hidden form field, appended the month, year and date using the javascript to it and then validated it as usual. The validation-rules had to be modified as it can validate only a text field and not a hidden field. Would be interested in knowing of any other alternate ways of validating. Jayaraman -Original Message- From: Erez Efrati [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 23, 2003 3:25 PM To: 'Struts Users Mailing List'; [EMAIL PROTECTED] Subject: RE: Birthdate validation ? Thanks for the quick reply, seems pretty easy but a bit long for just a date. Anyway, is there a validator I could use or do I have to write one of my own? And I mean Struts Validator.. Erez -Original Message- From: Alex Shneyderman [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 23, 2003 8:21 PM To: 'Struts Users Mailing List' Subject: RE: Birthdate validation ? Be carefull with that because if you set Feb 29, 2003 your date is going to be March 1, 2003 and Calendar will not say a thing. You should probably fix a birthdate validator. -Original Message- From: Adam Levine [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 23, 2003 2:18 PM To: [EMAIL PROTECTED] Subject: Re: Birthdate validation ? Use Calendar, more than likely the concrete GregorianCalendar. Calendar.setField(field, field value); x3 Calendar.getTime() - Date From: Erez Efrati [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Subject: Birthdate validation ? Date: Wed, 23 Jul 2003 21:03:53 +0200 I have a birth date field composed of three different fields of day month and a year. Now, what is the best way to receive those three and combine them into a java.sql.Date class and performing validation using the validator? Hope someone been there done that.. Thanks, Erez - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] _ Add photos to your messages with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: How do I implement a Master/Detail maintenance form?
http://www.developer.com/java/ejb/article.php/2233591 Hope this helps. I haven't tried this myself yet. Jayaraman -Original Message- From: Shane Mingins [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 15, 2003 5:59 PM To: '[EMAIL PROTECTED]' Subject: How do I implement a Master/Detail maintenance form? Hi Are there any *best practices* or examples around showing the best way of implementing the maintenance of a master/detail relationship using the Struts framework? For example if I provide a form with a supplier and list of products where you can edit the supplier details and/or edit the product details, to select the product to edit I need to provide a key to identify that product. I can use a link but then any changes to the supplier are not kept as the link does not submit the form. Thanks Shane Shane Mingins Analyst Programmer Assure NZ Ltd Ph 644 494 2522 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[OT] Concurrency handling
Would like to know the best practice being followed on handling the concurrency issues in the web application. The use case we have is similar to this. One last room is available in a hotel and 2 or more users try to reserve that same room at the same time. Only one user gets it and the other one or more get a message that the room has just been occupied. The application will be using Oracle or MS-SQLServer database. Would like to know the best place and way to check. Is it purely at database or at dao or business object? How can this be done? Any pointer to good articles will help. Thanks Jayaraman
RE: one more prepopulate question
In the home page we have, where more than one form is required, we have used frames. The frames src points to action which prepopulates the form and is displayed in the jsp. Which also means there is a separate jsp page for each form. Jayaraman -Original Message- From: Rick Reumann [mailto:[EMAIL PROTECTED] Sent: Friday, February 28, 2003 2:56 PM To: Struts Users Mailing List Subject: Re: one more prepopulate question On Fri, 28 Feb 2003 12:50:56 -0500 Sri Sankaran [EMAIL PROTECTED] wrote: Where are you running into a problem? I think the initial problem was how you would pre-populate several ActionForms inside of one Action and then be able to use those ActionForms to create several forms in the resulting JSP page. From what I can gather this is not too difficult as all you would do is create as many ActionForm instances as you need in your SetupAction and then put them all into request scope. You then can set up multiple forms as you see fit on the fowarded to JSP page. The only thing I haven't found a nice work around for is that you can only use one mapping.getAttribute() call in the Action for the form associated with that Action. In example will help. You have an Action class that you want to use to prepopulate three Action Forms and then forward to a JSP page and set up three separate forms. So you might have a mapping... action path=/setupMultipleForms type=foo.bar.SetUpFormsAction name=form1 scope=request validate=false forward name=continue path=/severalFormsOnAPage.jsp/ /action So now in the SetUpFormsAction you can easily put Form1 into scope by: Form1 form1 = (Form1)form; form1.setFoo(hello); request.setAttribute(mapping.getAttribute(), form1 ); But now for another ActionForm (Form2) to put into scope you'd have Form2 form2 = new Form2(); form2.setFooBar(BLA); request.setAttribute( form2, form2 ); The part I don't like is you now have to remember that you need to remember that you HAVE to refer to your Form2 object as form2 in your mapping set up in your struts-config.xml file or else you JSP page will not be able to find it. It's not a super big deal, but a bit annoying. Maybe there is another way to do it that I'm missing. -- Rick Reumann - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: what does RT Expr mean
In the custom tag I have the scriptlet is not evaluated, though I rtexprvalue set as true. mytaglib:mytag myvar=%= foo %/ the value of foo is not passed in the custom tag. But the string as such %= foo % gets passed. Am I missing anything else? -Original Message- From: Patrice [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 29, 2003 9:41 AM To: Struts Users Mailing List Subject: Re: what does RT Expr mean It means Run time expressions: the content is evaluated at the run time (so, you can have a dynamic value for the tag's attribute value). For example: % string foo = foo; % bean:define id=myAttribute value=%= foo %/ Hope it helps Patrice - Original Message - From: Sundar Narasimhan [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, January 29, 2003 3:26 PM Subject: what does RT Expr mean In the bottom of the documentation on the attributes of several tags I see [RT Expr].. what does that mean? Is it documented anywhere? Thanks. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: what does RT Expr mean
The jsp has this itogo:getProviderTypeString providerType=%= new Integer(currProv.getType()).toString() %/ and the tld entry is tag namegetProviderTypeString/name tagclasscom.vwks.itogo.admin.taglib.GetProviderTypeStringTag/tagclass bodycontentempty/bodycontent attribute nameproviderType/name requiredtrue/required rtexprvaluetrue/rtexprvalue /attribute /tag Thanks Jayaraman -Original Message- From: Karr, David [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 29, 2003 5:11 PM To: Struts Users Mailing List Subject: RE: what does RT Expr mean You'd have to show your specific code, showing your TLD entries, and most of the JSP page. -Original Message- From: Jayaraman Dorai [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 29, 2003 1:51 PM To: Struts Users Mailing List Subject: RE: what does RT Expr mean In the custom tag I have the scriptlet is not evaluated, though I rtexprvalue set as true. mytaglib:mytag myvar=%= foo %/ the value of foo is not passed in the custom tag. But the string as such %= foo % gets passed. Am I missing anything else? -Original Message- From: Patrice [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 29, 2003 9:41 AM To: Struts Users Mailing List Subject: Re: what does RT Expr mean It means Run time expressions: the content is evaluated at the run time (so, you can have a dynamic value for the tag's attribute value). For example: % string foo = foo; % bean:define id=myAttribute value=%= foo %/ Hope it helps Patrice - Original Message - From: Sundar Narasimhan [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, January 29, 2003 3:26 PM Subject: what does RT Expr mean In the bottom of the documentation on the attributes of several tags I see [RT Expr].. what does that mean? Is it documented anywhere? Thanks. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: what does RT Expr mean
The value of providerType in the tag is %= new Integer(currProv.getType()).toString() % and the scriptlet does not get evaluated. The tomcat version is 3.2.4. The jsp has this itogo:getProviderTypeString providerType=%= new Integer(currProv.getType()).toString() %/ and the tld entry is tag namegetProviderTypeString/name tagclasscom.vwks.itogo.admin.taglib.GetProviderTypeStringTag/tagclass bodycontentempty/bodycontent attribute nameproviderType/name requiredtrue/required rtexprvaluetrue/rtexprvalue /attribute /tag Thanks Jayaraman -Original Message- From: Jayaraman Dorai Sent: Wednesday, January 29, 2003 5:19 PM To: Struts Users Mailing List Subject: RE: what does RT Expr mean The jsp has this itogo:getProviderTypeString providerType=%= new Integer(currProv.getType()).toString() %/ and the tld entry is tag namegetProviderTypeString/name tagclasscom.vwks.itogo.admin.taglib.GetProviderTypeStringTag/tagclass bodycontentempty/bodycontent attribute nameproviderType/name requiredtrue/required rtexprvaluetrue/rtexprvalue /attribute /tag Thanks Jayaraman -Original Message- From: Karr, David [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 29, 2003 5:11 PM To: Struts Users Mailing List Subject: RE: what does RT Expr mean You'd have to show your specific code, showing your TLD entries, and most of the JSP page. -Original Message- From: Jayaraman Dorai [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 29, 2003 1:51 PM To: Struts Users Mailing List Subject: RE: what does RT Expr mean In the custom tag I have the scriptlet is not evaluated, though I rtexprvalue set as true. mytaglib:mytag myvar=%= foo %/ the value of foo is not passed in the custom tag. But the string as such %= foo % gets passed. Am I missing anything else? -Original Message- From: Patrice [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 29, 2003 9:41 AM To: Struts Users Mailing List Subject: Re: what does RT Expr mean It means Run time expressions: the content is evaluated at the run time (so, you can have a dynamic value for the tag's attribute value). For example: % string foo = foo; % bean:define id=myAttribute value=%= foo %/ Hope it helps Patrice - Original Message - From: Sundar Narasimhan [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, January 29, 2003 3:26 PM Subject: what does RT Expr mean In the bottom of the documentation on the attributes of several tags I see [RT Expr].. what does that mean? Is it documented anywhere? Thanks. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Question for using struts as our standard MVC framework
The following comparison is by the authors of Designing Enterprise Application by the J2EE blue print team, which clearly says it is the other way. You can also check it at http://java.sun.com/blueprints/guidelines/designing_enterprise_applications_2e/web-tier/web-tier5.html#1094743 J2EE BluePrints Web Application Framework (WAF)--The Web Application Framework forms the infrastructure of the sample application. This framework offers a Front Controller servlet, an abstract action class for Web-tier actions, a templating service, several generic custom tags, and internationalization support. WAF demonstrates both the mechanisms and effective use of a Web-tier framework layer in an application design. It is suitable for small, non-critical applications, and for learning the principles of Web-tier application framework design and usage. Apache Struts--Struts is a free, open-source, Web-tier application framework under development at the Apache Software Foundation. Struts is highly configurable, and has a large (and growing) feature list, including a Front Controller, action classes and mappings, utility classes for XML, automatic population of server-side JavaBeans, Web forms with validation, and some internationalization support. It also includes a set of custom tags for accessing server-side state, creating HTML, performing presentation logic, and templating. Some vendors have begun to adopt and evangelize Struts. Struts has a great deal of mindshare, and can be considered an industrial-strength framework suitable for large applications. But Struts is not yet a standard for which J2EE product providers can interoperably and reliably create tools. Jayaraman -Original Message- From: Khan, Manuchehar A (ACF) [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 11, 2002 10:37 AM To: 'Struts Users Mailing List' Subject: Question for using struts as our standard MVC framework Hello Folks. I work for Govt and we have major policy meeting for using struts as our stantard framework. One developer in our team took the Sun pet store example and created a framework that is basically a router/controller with xml configuration files to define handlers and views. And that controller works fine.. He claims that strut has not followed sun standards and guidelines and struts is not reliable. It can only support maximum 100 users and next year struts team is coming up with new version based in JSTL and will trash all releases. I need some inputs from people here to make solid arguments for changing to struts. Thanks... -Original Message- From: James Mitchell [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 11, 2002 10:34 AM To: Struts Users Mailing List; Dariusz Wojtas Subject: RE: JDO example - rozpakowywac Commanderem Was there a question in there I missed? James Mitchell Software Engineer\Struts Evangelist Struts-Atlanta, the Open Minded Developer Network http://www.open-tools.org/struts-atlanta -Original Message- From: Dariusz Wojtas [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 11, 2002 3:19 AM To: Struts Users Mailing List Subject: JDO example - rozpakowywac Commanderem Wednesday, September 11, 2002, 6:55:25 AM, you wrote: JM Sorry for the delay. I've decided to post this on our website. JM Please feel free to download and try it out. JM http://www.open-tools.org/struts-atlanta/downloads/DBMessageResources JM If for some reason the site goes down, just send me an email and I'll get it JM to you. JM James Mitchell JM Software Engineer\Struts Evangelist JM Struts-Atlanta, the Open Minded Developer Network JM http://www.open-tools.org/struts-atlanta -Original Message- From: James Mitchell [mailto:[EMAIL PROTECTED]] Sent: Tuesday, September 10, 2002 3:06 PM To: Struts Users Mailing List Subject: [Announce] [New Extension] ApplicationResources.properties from Database For anyone interested, I have finished implementing DBMessageResources which allows you to keep the key-value pairs (from your ApplicationResources.properties) in a single database table. You can load your property files into a table (generic schema is provided) and with this extension, by only modifying message-resources in the struts-config.xml your application will run WITHOUT ANY code changes. (See the readme.txt file included) This extension uses OJB (http://jakarta.apache.org/ojb) O/R mapping for database configuration and connection pool management. I have included a modified version of the (1.1b2) struts-example to demonstrate. I have tested this with Struts 1.1b2, and I'm sure it will work with 1.1b1 (If anyone requires a 1.0.x compatible, I can look at that also) I will get this project available as soon as I work through some cvs issues on sf.net: If anyone is REALLY itching to get their hands on it sooner, send me a email. For those who were waiting, thanks for
RE: JBUILDER keeps deleting the directory: WEB-INF/classes
Try unchecking the Synchronize output dir under the Project Properties--Build. -Original Message- From: Darren McGuinness [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 28, 2002 10:06 AM To: Struts Users Mailing List Subject: Re: JBUILDER keeps deleting the directory: WEB-INF/classes Forgot to add, this happens when I rebuild the project. Darren McGuinness wrote: This is then causing problems because ApplicationResources.properties is gone, and I get errors because the code cannot find the keys from the now deleted file. I had it working, but now this is happening. Using struts 1.0, JBuilder 6 with TomCat Any ideas? Cheers. -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Re: Nested Tags question
When I use nested tags, I am not able to access it through java scripts since the name is mailingAddress.city. Does anyone have a work around or am I missing something? Jayaraman -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 13, 2002 12:23 PM To: Struts Users Mailing List Subject: Re: Re: Nested Tags question On Thu, 13 Jun 2002 [EMAIL PROTECTED] wrote: Date: Thu, 13 Jun 2002 11:43:59 +0200 From: [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Subject: Re: Re: Nested Tags question So Craig, does the process work at submit time (when the request parameters are being put into the nested beans) via calls to the getter methods to get the beans on which the parameters have to be set? I can't see how else it would work. It depends on what context you are using the expressions in. For example: !-- Assume the form bean name is customerForm -- html:form action=/editCustomer ... html:text property=mailingAddress.city/ ... /html:form will, in effect, do a call to: customerForm.getMailingAddress().getCity() when the page is displayed, and a call to: customerForm.getMailingAddress().setCity() when the request parameters are being copied in to the form bean. Adam Craig Craig R. McClanahan [EMAIL PROTECTED] schrieb am 13.06.2002, 08:22:43: On Thu, 13 Jun 2002, Arron Bates wrote: Date: Thu, 13 Jun 2002 14:14:13 +1000 From: Arron Bates Reply-To: Struts Users Mailing List To: Struts Users Mailing List Subject: Re: Nested Tags question I know JSP will automatically save parameters to a javabean with the correctly named getters and setters, but there's obviously a gap in my knowledge because all my attempts to recreate the situation above have failed. Setting form properties against beans is a Struts thing, not a JSP thing. The property thing is a Bean thin and can be looked up in the JavaBean spec. The example you quote... monkeyTeamAlpha.monkeyWorkers[0].salary ...is a nested property. An invention implemented within Struts (Craig?). Yep, although in Struts 1.1 it is really a commons-beanutils thing because we abstracted out this generally useful code into a separate package. What it basically is, is a string of calls rather than the single property method. Here, it will get a hold of the form bean, get a hold of the bean returned from the monkeyTeamAlphaproperty. On this bean, it will invoke the indexed property monkeyWorkers[0] which will pluck a bean from a collection or index provided, from this last bean it will will get a hold of its salary property, and set the value. At each stage, you also get the benefit of some intelligence that is built in to the underlying PropertyUtils class. For example, the JavaBeans spec defines two ways to define an indexed property -- you can use getter and setter methods that take a value and a subscript, or you can use getter and setter methods that return the entire array. PropertyUtils makes the expression listed above work for either (or even for a property whose value is a java.util.List, which is an extension to the JavaBeans spec). All this boils down to, is that you can compose objects a little cleaner, rather than have truly enormous beans for everything. Having the indexed properties allows for lists and whatever else. The ability for nesting beans has been in Struts for a long time. The nested tags just make it much easier. There's a primer and tutorial for nested beans here... http://www.keyboardmonkey.com/next ...it should take you over creating and using such a construct. Hope this gets you on th path you're after. Another area of useful learning for the future is the JSP Standard Tag Library (JSTL). Although the expression language syntax supported by JSTL is different from the one in Struts, it is well worth learning about -- this expression language will be supported anywhere in a JSP page in JSP 1.3, and (in the mean time) we will likely adapt Struts tags to be able to use it as well. Arron. Craig -- To unsubscribe, e-mail: For additional commands, e-mail: -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Collection and form bean
I have a collection of Value objects which I iterate through the logic iterate in JSP. This value object has a int. The requirement is to display a blank instead of a 0. I can convert this value object into a form bean which has a string equivalent for this int and replace a 0 with an empty string. But the idea of iterating over a collection of form beans doesn't sound well for me. Is that ok? In the struts example, the collection of subscription is iterated and not the subscriptionForm. If subscription had an int attribute would it be wise to iterate through the collection of subscriptionForm. Which is more MVC? The jsp page iterating over the model object or the form object. Jayaraman
how do I check the size of the collection
I have a collection which I want to iterate in the jsp page. If the collections size is 0, I want to display a message no elements in the collection. Is there any struts tag for this. Thanks Jayaraman
RE: how do I check the size of the collection
How do I use that? I tried it this way. But it throws a NosuchMethodError exception. logic:equal name=logs property=size value=0 Empty Collection /logic:equal Is there any other way out. Jayaraman -Original Message- From: Galbreath, Mark [mailto:[EMAIL PROTECTED]] Sent: Friday, May 24, 2002 10:48 AM To: 'Struts Users Mailing List' Subject: RE: how do I check the size of the collection Yes: logic:equals -Original Message- From: Jayaraman Dorai [mailto:[EMAIL PROTECTED]] Sent: Friday, May 24, 2002 10:42 AM To: [EMAIL PROTECTED] Subject: how do I check the size of the collection I have a collection which I want to iterate in the jsp page. If the collections size is 0, I want to display a message no elements in the collection. Is there any struts tag for this. Thanks Jayaraman -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: how do I check the size of the collection
thanks for the response. this worked. -Original Message- From: Trieu, Danny [mailto:[EMAIL PROTECTED]] Sent: Friday, May 24, 2002 11:12 AM To: 'Struts Users Mailing List' Subject: RE: how do I check the size of the collection This should work: bean:size id=size name=theCollection / logic:equal name=size value=0 . /logic:equal -Original Message- From: Galbreath, Mark [SMTP:[EMAIL PROTECTED]] Sent: Friday, May 24, 2002 7:48 AM To: 'Struts Users Mailing List' Subject: RE: how do I check the size of the collection Yes: logic:equals -Original Message- From: Jayaraman Dorai [mailto:[EMAIL PROTECTED]] Sent: Friday, May 24, 2002 10:42 AM To: [EMAIL PROTECTED] Subject: how do I check the size of the collection I have a collection which I want to iterate in the jsp page. If the collections size is 0, I want to display a message no elements in the collection. Is there any struts tag for this. Thanks Jayaraman -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Forms Beans and DAO (Best Practices)
I use it the same way too. But had a dilemma of whether to place the Value Object as a
data member of Business Object and set that in constructor or pass the Value Object as
parameter for every method of create, update, and remove. How do you do that? Any
pros and cons.
-Original Message-
From: Pruthee, Ranjan [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 03, 2002 3:25 PM
To: Struts Users Mailing List
Subject: RE: Forms Beans and DAO (Best Practices)
In general, I use the Struts action classes as proxies to my business objects and my
business objects serve as proxies to my data access objects and I pass data across
tiers using DTO (DataTransportObject [use to be ValueObject]). In this fashion, I
can keep my business logic reusable in say a Java
Swing client as well as an HTML client. IMO, I would not access DAO (data access
objects) directly in the Struts ction classes. This means you would have to manage
transaction boundries (getting JDBC connection or JDO PersistanceManager) in your web
tier where as it would probably be better to isolate these details to your business
tier. We don't use EJB, so the general data flow is as follows:
Client === Action === BusinessObject === DataAccessObject(s) === Database
This keeps BusinessObjects resuseable among Action classes and DAO objects
reusable in BusinessObjects. The BusinessObject manages the transaction boundries and
the DAO just uses the JDBC connection. We maintain all SQL as static final Strings in
the DAO's. (reduces object creation) The BusinessObjects and DAO don't maintain any
state, so they are singletons. (reduces object creation)
So for example if I wanted to retrieve and display a customer list.
1. Client sends HTTP request
2. Struts delegates request to ShowCustomersAction
3. ShowCustomersAction delegates to CustomerBO
4. CustomerBO starts a transaction
5. CustomerBO delegates to CustomerDAO
6. CustomerDAO executes the query and gets results
7. CustomerDAO maps results into a collection of CustomerDTO
(DataTransportObject)
8. CustomerDAO returns collection to CustomerBO
9. CustomerBO ends transaction
10. CustomerBO returns collection to ShowCustomerAction
11. ShowCustomersAction places the connection in the HttpServletRequest as
an attribute
12. ShowCustomersAction forwards to showCustomersView (some jsp)
13. ShowCustomersView accesses customer collection using a custom tag
14. ShowCustomersView renders customer list
PS. If we did switch to using EJB, then the BusinessObjects become BusinessDelegates
to actual EJBs and nothing in the web tier has to change and both DAOs and DTOs can
be reused.
-Original Message-
From: Chen, Dean (Zhun) [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 03, 2002 2:23 PM
To: 'Struts Users Mailing List'
Subject: RE: Forms Beans and DAO (Best Practices)
This might be a stupid question, but what are DAO and Value Object supposed
to be?
Does DAO encapsulate the logic to make JDBC calls? For example, would it
contain the name of a stored procedure or would that be passed to it?
Is ValueObject a generic object that stores the result sets? For example, a
Collection of somesort? or a Collection of Collections?
Thanks, I am also trying to figure out what the most performant way to
design this.
Dean Chen
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 03, 2002 1:17 PM
To: Struts Users Mailing List
Subject: Re: Forms Beans and DAO (Best Practices)
I see what you're doing and agree it seems easier.
But coupling the form beans to the DAO's so tightly I wouldn't call a best
practice. Here is another approach:
- Have the DAO's return Value Objects. But then have a setValueObject() on
the form bean so you can store the entire value object in it.
First, in your action class, do something like:
myFormBean1.setValueObject1(myDao1.getValueObject1());
Then either,
1. Have your get/set methods for the form bean properties use the
value object for storage internally, like:
// in the form bean.java file
private ValueObject valueObject1
public void setValueObject1(ValueObject val1) {
this.valueObject = val1;
}
// Note: no property1 field needed!
public String getProperty1() {
return this.valueObject.getProperty1();
}
public void setProperty1(String property1) {
this.valueObject.setProperty1(property1);
}
- or -
2. Have the setValueObject() in the form bean deconstruct the value
object and store its components in the form bean
// again, in the form bean.java file
// Note: no valueObject1 field needed!
public void setValueObject1(ValueObject val1) {
this.property1= val1.getProperty1();
}
private String property1;
public String getProperty1() {
RE: Forms Beans and DAO (Best Practices)
How do you create a customer. (i.e.) Add a new record in the database from the data
entered in the HTML client.
The way I currently do is
1. The action form has the Value Object
2. The action class gets the Value Object through the action form. Then Calls
BO.create(VO)
3. The Business Object then calls the DAO.create(VO).
The same for updating the BO in the edit mode ( through BO.update(VO) which then calls
DAO.update(VO).
Jayaraman
-Original Message-
From: Pruthee, Ranjan [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 03, 2002 4:23 PM
To: Struts Users Mailing List
Subject: RE: Forms Beans and DAO (Best Practices)
The way I do it is -
BO -- DAO ---returns the recordset and not ValueObject. This RS is passed back to
the BO. which passes it to the ValueObject to build it.
The code will look something like this -
public class BO
{
CustomerVO custvo = new CustomerVO();
Recordset rs = dao.getCustomer(1);
custvo.buildCustomerVo(rs);
}
One should not build VO in DAO because u will create dependency on the DAO. In case u
want to separate DAO from the BO then the DAO alone will not work as it will have
reference to the VO. So intead of being a lightweight DAO it will be a heavyweight
component will lot of dependencies. Reuse will take hit with this approach but that
just me.
Ranjan.
-Original Message-
From: Jayaraman Dorai [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 03, 2002 3:07 PM
To: Struts Users Mailing List
Subject: RE: Forms Beans and DAO (Best Practices)
I use it the same way too. But had a dilemma of whether to place the Value Object as a
data member of Business Object and set that in constructor or pass the Value Object as
parameter for every method of create, update, and remove. How do you do that? Any
pros and cons.
-Original Message-
From: Pruthee, Ranjan [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 03, 2002 3:25 PM
To: Struts Users Mailing List
Subject: RE: Forms Beans and DAO (Best Practices)
In general, I use the Struts action classes as proxies to my business objects and my
business objects serve as proxies to my data access objects and I pass data across
tiers using DTO (DataTransportObject [use to be ValueObject]). In this fashion, I
can keep my business logic reusable in say a Java
Swing client as well as an HTML client. IMO, I would not access DAO (data access
objects) directly in the Struts ction classes. This means you would have to manage
transaction boundries (getting JDBC connection or JDO PersistanceManager) in your web
tier where as it would probably be better to isolate these details to your business
tier. We don't use EJB, so the general data flow is as follows:
Client === Action === BusinessObject === DataAccessObject(s) === Database
This keeps BusinessObjects resuseable among Action classes and DAO objects
reusable in BusinessObjects. The BusinessObject manages the transaction boundries and
the DAO just uses the JDBC connection. We maintain all SQL as static final Strings in
the DAO's. (reduces object creation) The BusinessObjects and DAO don't maintain any
state, so they are singletons. (reduces object creation)
So for example if I wanted to retrieve and display a customer list.
1. Client sends HTTP request
2. Struts delegates request to ShowCustomersAction
3. ShowCustomersAction delegates to CustomerBO
4. CustomerBO starts a transaction
5. CustomerBO delegates to CustomerDAO
6. CustomerDAO executes the query and gets results
7. CustomerDAO maps results into a collection of CustomerDTO
(DataTransportObject)
8. CustomerDAO returns collection to CustomerBO
9. CustomerBO ends transaction
10. CustomerBO returns collection to ShowCustomerAction
11. ShowCustomersAction places the connection in the HttpServletRequest as
an attribute
12. ShowCustomersAction forwards to showCustomersView (some jsp)
13. ShowCustomersView accesses customer collection using a custom tag
14. ShowCustomersView renders customer list
PS. If we did switch to using EJB, then the BusinessObjects become BusinessDelegates
to actual EJBs and nothing in the web tier has to change and both DAOs and DTOs can
be reused.
-Original Message-
From: Chen, Dean (Zhun) [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 03, 2002 2:23 PM
To: 'Struts Users Mailing List'
Subject: RE: Forms Beans and DAO (Best Practices)
This might be a stupid question, but what are DAO and Value Object supposed
to be?
Does DAO encapsulate the logic to make JDBC calls? For example, would it
contain the name of a stored procedure or would that be passed to it?
Is ValueObject a generic object that stores the result sets? For example, a
Collection of somesort? or a Collection of Collections?
Thanks, I am also trying to figure out what the most performant way to
design this.
Dean Chen
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 03, 2002 1:17 PM
To: Struts Users
html:options
Hi, I want in my drop down a blank record. This needs to be the default. This provides the user an option to not select anything( It is a null field). Is it possible to do this other than putting an empty string in the collection. How to set this blank string as the default(not affecting the user's selected value in the edit mode)? I hope I am clear. Jayaraman
RE: html:options
Thanks, it looks so trivial now. -Original Message- From: James Mitchell [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 01, 2002 3:02 PM To: Struts Users Mailing List Subject: RE: html:options html:select property=type html:option value=/ html:options collection=serverTypes property=value labelProperty=label/ /html:select JM -Original Message- From: Jayaraman Dorai [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 01, 2002 2:52 PM To: [EMAIL PROTECTED] Subject: html:options Hi, I want in my drop down a blank record. This needs to be the default. This provides the user an option to not select anything( It is a null field). Is it possible to do this other than putting an empty string in the collection. How to set this blank string as the default(not affecting the user's selected value in the edit mode)? I hope I am clear. Jayaraman -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
