SpringMVC Custom Collection Editor Not Returning Data To Jsp

[darin ramdhanie]

I am binding a multi select list in spring the item does not get its data from the DAO the data is added from another select option list. The user clicks a button and the data is sent to the multi select option list using jquery.

When the form is posted databinding does not happen for the item since its a complex data type so i registered a CustomEditor and attached it to the @initbinder.

EDITED I have updated the code the CollectionEditor is now returning a list of citizens back to the view however i am unable to get the data in the list to fill the select option. I am trying to add elements to the victimList but the list remains NULL.

Under is the code:

CustomCollectionEditor

sbinder.registerCustomEditor(List.class, "victims", new CustomCollectionEditor(List.class){
    protected Object convertElement(Object element)
    {                
        List<Citizens> victimList = null;

        String ssNumber = "";
        String name = "";

        if (element instanceof String)
            ssNumber = (String) element;

    try {
        int socialSecurityNumber = Integer.parseInt(ssNumber);
        name = citizenManager.getCitizenName(socialSecurityNumber);

        logger.debug("The victime Name is :" + name);

        Citizens citizen = new Citizens();
        citizen.setSocialSecurityNumber(socialSecurityNumber);
        citizen.setName(name);
        victimList.add(citizen);                        

        } catch (NumberFormatException e) {
            logger.error(e.getMessage());
        } catch (Exception e) {
            logger.error(e.getMessage());
        }
        return victimList;
    }

});  

Jsp that is filled from DAO in controller

This contains data filled form DAO class when the button is clicked it takes the data from the list on appends it to the other list under which is bind to the POJO

<label>Victims List</label><buttonid="addVictimBtn">/button>
<form:select path="" id="dbvictims" title="Victims Of Crime" class="victimLst">
<form:options items="${dbvictims.dbvictimList}" itemValue="socialSecurityNumber" itemLabel="name"/>
</form:select>  

Jsp select item that is bind to POJO

<label>Victims In Crime</label><button id="removeVictimBtn">-</button> 
<form:select path="victims" id="victims" title="Victims Of Crime"  multiple="multiple" class="victimLst">
<form:options items="${victimList}" itemValue="socialSecurityNumber" itemLabel="name"/>
</form:select><form:errors path="victims" class="errors" />   

Logs

I am just not sure why the data is not adding to the list its there in the CollectionEditor method;

39551 [http-bio-8084-exec-4] DEBUG com.crimetrack.web.CrimeRegistrationController  - element is ;194302025
39551 [http-bio-8084-exec-4] DEBUG org.springframework.jdbc.core.JdbcTemplate  - Executing prepared SQL query
39551 [http-bio-8084-exec-4] DEBUG org.springframework.jdbc.core.JdbcTemplate  - Executing prepared SQL statement [SELECT concat(fName,' ', lName) as name FROM TBLCITIZENS WHERE socialSecurityNumber = ?]
39551 [http-bio-8084-exec-4] DEBUG org.springframework.jdbc.datasource.DataSourceUtils  - Fetching JDBC Connection from DataSource
39551 [http-bio-8084-exec-4] DEBUG org.springframework.jdbc.core.StatementCreatorUtils  - Setting SQL statement parameter value: column index 1, parameter value [194302025], value class [java.lang.Integer], SQL type unknown
39551 [http-bio-8084-exec-4] DEBUG org.springframework.jdbc.datasource.DataSourceUtils  - Returning JDBC Connection to DataSource
39551 [http-bio-8084-exec-4] DEBUG com.crimetrack.web.CrimeRegistrationController  - Social Security Number Is : 194302025
39551 [http-bio-8084-exec-4] DEBUG com.crimetrack.web.CrimeRegistrationController  - Citizen Name is :hance edwards
39551 [http-bio-8084-exec-4] DEBUG com.crimetrack.web.CrimeRegistrationController  - element is ;1985010122
39551 [http-bio-8084-exec-4] DEBUG org.springframework.jdbc.core.JdbcTemplate  - Executing prepared SQL query
39551 [http-bio-8084-exec-4] DEBUG org.springframework.jdbc.core.JdbcTemplate  - Executing prepared SQL statement [SELECT concat(fName,' ', lName) as name FROM TBLCITIZENS WHERE socialSecurityNumber = ?]
39551 [http-bio-8084-exec-4] DEBUG org.springframework.jdbc.datasource.DataSourceUtils  - Fetching JDBC Connection from DataSource
39551 [http-bio-8084-exec-4] DEBUG org.springframework.jdbc.core.StatementCreatorUtils  - Setting SQL statement parameter value: column index 1, parameter value [1985010122], value class [java.lang.Integer], SQL type unknown
39567 [http-bio-8084-exec-4] DEBUG org.springframework.jdbc.datasource.DataSourceUtils  - Returning JDBC Connection to DataSource
39567 [http-bio-8084-exec-4] DEBUG com.crimetrack.web.CrimeRegistrationController  - Social Security Number Is : 1985010122
39567 [http-bio-8084-exec-4] DEBUG com.crimetrack.web.CrimeRegistrationController  - Citizen Name is :dsvdsv sdvdsv

[darin ramdhanie]

Can anyone assist with this??