Reputation: 649
I have a form that runs a java agent on the WebQueryOpen event. This agent pulls data from a DB2 database and then puts them into the computed text fields I have placed on the form and are displayed whenever I open the form in the browser. This is working for me. However, when I try to use RichTextFields I get a ClassCastException error. No document is actually saved, I just open the form in the browser using this domino URL - https://company.com/database.nsf/sampleform?OpenForm
Sample code of simple text field - Displayed with w/o problems
Document sampledoc = agentContext.getDocumentContext();
String samplestr = "sample data from db2";
sampledoc.replaceItemValue("sampletextfield", samplestr);
When I tried using rich text field
Document sampledoc = agentContext.getDocumentContext();
String samplestr = "sample data from db2";
RichTextItem rtsample = (RichTextItem)sampledoc.getFirstItem('samplerichtextfield');
rtsample.appendText(samplestr); // ClassCastException error
Basically, I wanted to use rich text field so that it could accommodate more characters in case I pull a very long string data.
Screenshot of the field (As you can see it's a RichText)
Upvotes: 1
Views: 923
Reputation: 1984
The problem is that you're trying to access a regular Item as a RichTextItem.
The RichTextItem are special fields that are created with its own method just like this:
RichTextItem rtsample = (RichTextItem)sampledoc.createRichTextItem('samplerichtextfield');
It's different to the regular Items that can be created with a simple sampledoc.replaceItemValue(etc)
.
So, if you want to know if a item is RichTextItem and if it does not exist, create it, you can do this:
RichTextItem rti = null;
Item item = doc.getFirstItem("somefield");
if (item != null) {
if (item instanceof RichTextItem) {
//Yay!
rti = (RichTextItem) item;
} else {
//:-(
}
} else {
rti = doc.createRichTextItem("somefield");
//etc.
}
Upvotes: 1