Getting an error while validating with the help of domain

Question

This is strange. I am validating an email address column in employees table by creating a domain and then associating it with the email column in the table. This is the code
    protected void validate() {
        //  ### Implement custom domain validation logic here. ###
        int atpos = mData.indexOf('@');
        int dotpos = mData.lastIndexOf('.');
        if (atpos > -1 || dotpos > -1) {
            throw new DataCreationException(null, "Invalid Email Address", null);
    }But while committing records, I am receiving the following error:
Cannot convert testmailid of type class java.lang.String to class model.common.DomainEmail
Can anyone help me?
Oh yes, I am using JDev 11.1.2.3

Answer 1

I suspect that you are using an <af:inputText> with no converter for entering the email on the page. The purpose of a converter would be to convert the String value entered by the user in the field to another datatype (e.g. to model.common.DomainEmail type) which is expected by the model layer (e.g. by the target VO attribute). If there is no such converter, JSF does not perform any datatype conversion and it tries to assign the java.lang.String value to the VO attribute (which is of model.common.DomainEmail datatype), so a type casting error occurs. If that is the case, then you should implement and attach a proper JSF converter to the <af:inputText> component.
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