William -
The problem here is that validator is expecting quantityArray to contain a property called quantity for each element it contains. (For example: quantityArray[0].quantity, quantityArray[1].quantity etc.) Since quantityArray is an array of Integer, it obviously does not contain a property called quantity.
Overall though, the problem is that an Integer (and any of the other java type-wrapper classes) does not contain getters and setters for their value properties, and therefore cannot be used in an array and with the built in validator.
I think you have 2 choices here, the first being to use the validate method inside your ActionForm. The second option would be to setup a new class with a quantity property and getters/setters for that property, then make quantityArray an array of that type.
Matt
William Ferguson wrote:
Hi all,
even after scanning the doco, examples, source code and previous posts I still can't get validation to happen for an indexed field in my Struts (1.2.4) application working. I would really appreciate some help crafting the appropriate validation definition.
My form is defined as <form name="/cart/updateItems"> <field property="quantity" indexedListProperty="quantityArray" depends="required, integer"> </field> </form>
A 'quantityArray' parameter is supplied with the Request and is an array of Integer like Strings.
The Struts ActionForm has the following methods: public Integer getQuantity(int index);
/* * NB it is not expected that this method will ever be called, * but I think it is needed so that the commons-validator recognises 'quantity' as a property. */ public void setQuantity(int index, Integer quantity); public Integer[] getQuantityArray(); public void setQuantityArray(Integer[] quantity);
But this combination causes the following Exception to be thrown during validation: 24734 ERROR org.apache.commons.validator.util.ValidatorUtils - Unknown property 'quantity' java.lang.NoSuchMethodException: Unknown property 'quantity' at org.apache.commons.beanutils.PropertyUtils.getSimpleProperty(PropertyUtils.j ava:1175) at org.apache.commons.beanutils.PropertyUtils.getNestedProperty(PropertyUtils.j ava:772) at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:80 1) at org.apache.commons.validator.util.ValidatorUtils.getValueAsString(ValidatorU tils.java:105) at org.apache.struts.validator.FieldChecks.validateRequired(FieldChecks.java:87 ) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39 ) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl .java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.commons.validator.ValidatorAction.executeValidationMethod(Validat orAction.java:567) at org.apache.commons.validator.Field.validateForRule(Field.java:811) at org.apache.commons.validator.Field.validate(Field.java:890) at org.apache.commons.validator.Form.validate(Form.java:174) at org.apache.commons.validator.Validator.validate(Validator.java:367) at org.apache.struts.validator.ValidatorForm.validate(ValidatorForm.java:112)
I tried dozens of different combos with no luck. What do I need to do to validate a collection of properties of unknown size using the commons-validator?
NB crossposting to both commons and struts lists.
William
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