richfaces

What is the best mechanism for preventing constraint violation checks before creation | modification of an entity? Suppose if the 'User' entity has 'loginid' as the unique constraint, would it be wise to check if there is an user entry already with this loginid name before creation or modification. OR Would you let the database throw an ConstraintViolationException and handle this message appropriately in the UI layer. Where should such checks be enforced in the jboss seam framework. Note: Currently no such checks are enforced on the seam-gen code. We currently use Seam 2.2, Richfaces with

This question already has an answer here: How to provide a file download from a JSF backing bean? 4 answers I want to export Data from a Rich Faces Data Table I have created outputStream from the data in the Data Table. Now want to send this OutputStream to browser and let it save. How can I do this? FileOutputStream stream = new FileOutputStream(new File(PATH)); OutputStream out = myMthodToCreateOutPutStream(); Now how to save this out to browser . It's not clear where you are reading your data from. You need to create an InputStream to read the data. Then, you first need to set the response

I'm hoping to use a custom richfaces skin to handle the bulk of my presentation work. Unfortunately richfaces renders borders around every cell in a calendar component and around each panel. I would like to turn them off so that day numbers site in an open grid with no borders. There is no obvious way to do that using skins or attributes of the calendar control. I could use custom CSS but I'd prefer to work with the framework to completely remove the border related properties from the stylesheets created by richfaces rather than work against the framework and override everything using ugly CSS

I have an h:inputText and an h:message connected to it: <h:inputText id="myText" value="#{myController.myText}" /> <a4j:outputPanel> <h:message for="myText" .../> </a4j:outputPanel> I want to send a message to it from java, in a manner like: FacesContext.getCurrentInstance().addMessage(arg0, arg1); which is sent to h:messages, but to a specific id in a specific form. How can I do this? (Without implementing validation bean or validation method - meaning without throwing validation exception). Arjan Tijms You need to provide the so called client id , which you'll find on UIComponent . The

Background Write an XML document to a browser's response stream and cause the browser to display a "Save As" dialog. Problem Consider the following download() method: HttpServletResponse response = getResponse(); BufferedWriter bw = new BufferedWriter( new OutputStreamWriter( response.getOutputStream() ) ); String filename = "domain.xml"; String mimeType = new MimetypesFileTypeMap().getContentType( filename ); // Prints "application/octet-stream" System.out.println( "mimeType: " + mimeType ); // response.setContentType( "text/xml;charset=UTF-8" ); response.setContentType( mimeType ); response

I made a MVC based website using JSF 2.0 and RichFaces 4. Every input text validation is been done using bean validation annotations. I am using Hibernate Validator as bean validation implementation. How can I display a localized message? If I use @NotNull(message="<h:outputText value=\"#{msg['Mymessage']}\" />") then it literally displays <h:outputText value="#{msg['Mymessage']}" /> as message. How is this caused and how can I solve it? You should and can not put JSF tags in the message. Also, JSF's own resource bundle won't be used to resolve localized validation messages. JSR303 bean