Problem with binding the form with ValueObject

[srinivasrao]

My form is with 5 textfields, 4 dropdownbuttons. When i filled the data in all the fields and submit it, then it is creating a new record in the corresponding table. If i leave any of the field blank then it throwing org.springframework.validation.BindException. Please let me know that how can i submit the form by leaving required fields blank.
The corresponding code:

public ModelAndView saveNewDevice(HttpServletRequest request,
HttpServletResponse response) throws Exception {
List list1 = new ArrayList();
List list2 = new ArrayList();
Object command = newCommandObject(DeviceInstanceVO.class); // ValueObject class to bind to the form
bind(request, command);
DeviceInstanceDaoJdbc dao = getDAO();
String deviceTypeStr = request.getParameter("devType");
Integer deviceTypeId = new Integer(deviceTypeStr);
dao.setDevices(command);
list1 = dao.getCreatedDevice(); // to retrieve the created record
list2 = dao.getSelectedDeviceTypes(deviceTypeId); // to retrieve the created record

Map model = new HashMap();
model.put("deviceData", list1);
model.put("deviceDataType", list2);

return new ModelAndView("device/SaveDevice", model);
}

[klr8]

You want to leave required fields blank???

Erwin

[srinivasrao]

You want to leave required fields blank???

Erwin

I want to send the form data to database to create a new record of the related table in which some of the columns are defined as not null. I am doing this with the help of the valueobject . Initially the valueobject have to bind the form data, then this object sends to database to create new record.

For Example:

One of the Form Field
<td><input type="text" name="maxConnPerNode" value="<core:out value="${status.value}"/>" maxlength="5"></td>

The data member of the ValueObject is:

private Integer maxConnPerNode;

If i send null value to this field with then it is throwing org.springframework.validation.BindException with message

[typeMismatch.command.maxConnPerNode,typeMismatch.m axConnPerNode,typeMismatch.java.lang.Integer,typeM ismatch];

But i want to submit the form with some of the fields as null.

[Colin Yates]

Check out the javadoc for http://static.springframework.org/sp...sResolver.html

[srinivasrao]

Check out the javadoc for http://static.springframework.org/sp...sResolver.html

I doen't want the messages to be displayed properly, but how to store data throught dataobject to the database table.
Once again my code details are:

JSP

<form name="NewDevice" method="post">
<table border="1" width="600">
<caption><b> NEW DEVICE </b></caption>
<tr>
<tD>Device Name</tD>
<tD>
<input type="text" name="devName" value="<core&#58;out value="$&#123;status.value&#125;"/>"/>
</tD>
</tr>
<tr>
<tD>Max Connections PerNode in a cluster</tD>
<tD>
<input type="text" name="maxConnPerNode" value="0" maxlength="5"/>
</tD>
</tr>
<tr>
<tD>Max connections per node</tD>
<tD>
<input type="text" name="maxConnPerNode" value="<core&#58;out value="$&#123;status.value&#125;"/>" maxlength="5"/>
</tD>
</tr>
<tr>
<tD>Maintainace Start Time <br>&#40;In minutes start from day&#41;</tD>
<tD>
<input type="text" name="mainStartTime" value="<core&#58;out value="$&#123;status.value&#125;"/>" maxlength="9"/>
</tD>
</tr>
<tr>
<tD>Maintainace End Time <br>&#40;In minutes start from day&#41;</tD>
<tD>
<input type="text" name="mainEndTime" value="<core&#58;out value="$&#123;status.value&#125;"/>" maxlength="9"/>
</tD>
</tr>
</table>
<input type="submit" name="save" value="Save" onClick="doAction&#40;'save'&#41;"/> 
</form>

DataObject to bind from form:

    private String devName;    
    private Integer maxConnPerNode;
    private Integer mainEnabledFlag;
    private Integer mainStartTime;
    private Integer mainEndTime;   

     public void setDevName(String devName) {
        this.devName = devName;
    }
    public String getDevName() {
        return this.devName;
    }
   public void setMainEndTime(Integer mainEndTime) {
        this.mainEndTime = mainEndTime;
     }
    public Integer getMainEndTime() {
        return mainEndTime;
    }
    public Integer getMainStartTime() {
        return mainStartTime;
    }
    public void setMainStartTime(Integer mainStartTime) {
        this.mainStartTime = mainStartTime;
    }
    public void setMainEnabledFlag(Integer mainEnabledFlag) {
        this.mainEnabledFlag = mainEnabledFlag;
    }
    public Integer getMainEnabledFlag() {
        return mainEnabledFlag;
    }
    public Integer getMaxConnPerNode() {
        return maxConnPerNode;
    }
    public void setMaxConnPerNode(Integer maxConnPerNode) {
        this.maxConnPerNode = maxConnPerNode;
    }

Here is the method to bind form to ValueObject:

public ModelAndView saveNewDevice(HttpServletRequest request,
        HttpServletResponse response) throws Exception {
        List list1 = new ArrayList();
        List list2 = new ArrayList();
       Object command = newCommandObject(DeviceInstanceVO.class);

        bind(request, command);  // i think here i am getting problem

        DeviceInstanceDaoJdbc dao = getDAO();
        String deviceTypeStr = request.getParameter("devType");
        Integer deviceTypeId = new Integer(deviceTypeStr);
        dao.setDevices(command); //sends valueobject to insert as new record
        return new ModelAndView("device/SaveDevice", null);
    }

The related Table:

SQL> desc device_instance;
 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 NAME                                      NOT NULL VARCHAR2(128) 
 MAX_CONN_PER_NODE                                  NUMBER(9)
 MAINTENANCE_ENABLED                                NUMBER(1)
 MAINTENANCE_START                                  NUMBER(9)
 MAINTENANCE_END                                    NUMBER(9)

please let me know how can i submit form by leaving some of the fields null.

[claudiu.dumitrescu]

Hi

Did you get your answer. I'm facing the same problem now so if you resolved it let me know how.

Thank you

[gcosgrave]

you need to register a custom number editor to allow for null numbers...

    protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder)
            throws Exception {
        binder.registerCustomEditor(Integer.class, new CustomNumberEditor(Integer.class, true));
    }

[srinivasrao]

you need to register a custom number editor to allow for null numbers...

    protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder)
            throws Exception {
        binder.registerCustomEditor(Integer.class, new CustomNumberEditor(Integer.class, true));
    }

Thanks for your reply. After adding the given in the subclass of MultiActionController, the method is not invoking. Please let me have one full example.

[gcosgrave]

sorry I assumed you were using a subclass of AbstractCommandController.
The following will work for MultiActionController if yare using Spring 1.2 or greater.

    protected ServletRequestDataBinder createBinder(ServletRequest request, Object command)
            throws Exception {
        ServletRequestDataBinder binder = null;
        if (command instanceof XXXX) {
            binder = new ServletRequestDataBinder(command, "command");
            binder.registerCustomEditor(Long.class, new CustomNumberEditor(Long.class, true));
        return binder;
    }

[/code]

[srinivasrao]

sorry I assumed you were using a subclass of AbstractCommandController.
The following will work for MultiActionController if yare using Spring 1.2 or greater.

    protected ServletRequestDataBinder createBinder(ServletRequest request, Object command)
            throws Exception {
        ServletRequestDataBinder binder = null;
        if (command instanceof XXXX) {
            binder = new ServletRequestDataBinder(command, "command");
            binder.registerCustomEditor(Long.class, new CustomNumberEditor(Long.class, true));
        return binder;
    }

[/code]

Thank you very much. Now it is working.