Terry,
Thanks for asking the question - I've asked a similar question in the past.
I did not realize that validator has some collection support, I may look
further into that.
I used a different approach by putting together a little "glue" code in my
main form bean's "validate" method. For example, I have a composite form
bean that has properties for a "base" form bean and two collections of
multiple "line item" form beans. Both the base and line item form beans have
their own validator validations. Below is an example. Note that I have to
lookup the ActionMapping for a "utility" action that uses the line item form
to update a single line item.
I would go with Mark's idea if it works for you - much less manual glue
code, but at least this reuses your validations.
- Richard
public ActionErrors validate(ActionMapping mapping, HttpServletRequest
request) {
// Let standard validation run first.
ActionErrors errors = null;
// errors = super.validate(mapping, request);
ActionError error = null;
ActionErrors currLineItemsErrors = null;
ActionErrors newLineItemsErrors = null;
if (errors == null) errors = new ActionErrors();
LineItemForm li = null;
ActionMapping liMapping =
(ActionMapping)mapping.getModuleConfig().findActionConfig("/config/LineItemA
ction");
// Check each new currLineItems formbean
if (newLineItems != null && newLineItems.size() > 0) {
if (log.isDebugEnabled()) log.debug("Validate - count of
newLineItems="+newLineItems.size());
for (int i = 0; i < newLineItems.size(); i++) {
// Do not consider if some part of form is not filled in
if ( newLineItems.get(i) == null ) {
if (log.isDebugEnabled()) log.debug("Validate -
newLineItem["+i+"] is null, skipping.");
continue;
}
li = (LineItemForm)newLineItems.get(i);
if (log.isDebugEnabled()) log.debug("Validate -
newLineItem["+i+"]='"+li+"'");
if ( li.isEmpty() ) {
if (log.isDebugEnabled()) log.debug("Validate -
newLineItem["+i+"] is empty, skipping.");
continue;
}
li.setServlet(getServlet());
newLineItemsErrors = li.validate(liMapping,request);
if (!newLineItemsErrors.isEmpty()) {
errors.add(ActionErrors.GLOBAL_ERROR,
new ActionError("error.in.new.line.num",
Integer.toString(i+1)));
errors.add(newLineItemsErrors);
}
}
}
if (currLineItems != null && currLineItems.size() > 0) {
if (log.isDebugEnabled()) log.debug("Validate - count of
currLineItems="+currLineItems.size());
for (int i = 0; i < currLineItems.size(); i++) {
// Do not consider if some part of form is not filled in
if ( currLineItems.get(i) == null ) {
if (log.isDebugEnabled()) log.debug("Validate -
currLineItem["+i+"] is null, skipping.");
errors.add(ActionErrors.GLOBAL_ERROR,
new ActionError("error.in.curr.line.num",
Integer.toString(i+1)));
errors.add(currLineItemsErrors);
continue;
}
li = (LineItemForm)currLineItems.get(i);
if (log.isDebugEnabled()) log.debug("Validate -
currLineItem["+i+"]='"+li+"'");
if ( li.isEmpty() ) {
if (log.isDebugEnabled()) log.debug("Validate -
currLineItem["+i+"] is empty, skipping.");
errors.add(ActionErrors.GLOBAL_ERROR,
new ActionError("error.in.curr.line.num",
Integer.toString(i+1)));
errors.add(currLineItemsErrors);
continue;
}
li.setServlet(getServlet());
currLineItemsErrors = li.validate(liMapping,request);
if (!currLineItemsErrors.isEmpty()) {
errors.add(ActionErrors.GLOBAL_ERROR,
new ActionError("error.in.curr.line.num",
Integer.toString(i+1)));
errors.add(currLineItemsErrors);
}
}
}
return errors;
}
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