Struts2 Points to remember about “field-validator” nodes

Each field can have one or more “field-validator” nodes

Each fields validators are executed in the order they are defined

Each field validator has a “short-circuit” attribute; if this

is true and the validation fails, all further validations are

skipped and a failed result returned for the field

The message node can include a “key” attribute which

looks up the message to display to the user from a

message bundle; the value of the node is then used if no

message bundle key exists

Validator configuration information (such as min and

max) as well as values from the value stack can be used

in the validation message by placing the value between

the tokens “${“ and “}”

Validators can have a scope of either “field” or

“expression”; expression validators can work across

multiple fields