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From "tomster (JIRA)" <j...@apache.org>
Subject [jira] Created: (VALIDATOR-189) Validating array integers fails
Date Tue, 30 May 2006 05:30:30 GMT
Validating array integers fails
-------------------------------

         Key: VALIDATOR-189
         URL: http://issues.apache.org/jira/browse/VALIDATOR-189
     Project: Commons Validator
        Type: Bug

 Environment: Tomcat  5.5.17, Struts 1.2.9 (default validator 1.1.4 and 1.3.0)
    Reporter: tomster


I posted this issue on Struts and it got determined to be a validator bug (or appears to be).

There seems to be some issue with validating integer arrays: 

html: 

<html:select property="types" multiple="true" size="3" > 
<html:option value="1">should work</html:option> 
<html:option value="2">should work as well</html:option> 
<html:option value="blah">this will fail validation</html:option> 
</html:select> 

actionform: 

public class PropertyFilter implements Serializable 
  { 
  private String[] types; 
  
    public String[] getTypes() { 
    return types; 
  } 
    public void setTypes(String[] types) { 
    this.types = types; 
  } 
  } 

validation.xml: 
    
<formset> 
<form name="PropertyFilterForm"> 
   
<field property="types" depends="integer"> 
<arg0 key="text.validation.type"/> 
</field> 
    
</form> 
</formset> 

Even if all values are integer, it will fail validation regardless. According to http://www.strutskickstart.com/IndexedPropertiesandValidation.ppt#18
I should 
do something like: 
    
<field property="types" indexedListProperty="types" depends="integer"> 
<arg0 key="text.validation.type"/> 
</field> 
    
This time, it does indeed check all the values are of type integer, however, 
if you do not select anything (the field is not required) the result is: 
    
java.lang.NullPointerException 
org.apache.commons.validator.Field.getIndexedProperty(Field.java:796) 
org.apache.commons.validator.Field.validate(Field.java:891) 
  .. 

Also having scoured all documentation in current and future builds and there is no example
of validating an integer array. 

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