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Posted to users@wicket.apache.org by rolandpeng <ro...@cht.com.tw> on 2009/02/22 10:55:09 UTC
A Bug in SqlDateConverter?
Now I use wicket 1.3.5.
There is a date field in my webpage.and it is not required.
The date class type is java.sql.date
But I alway have a NullPointerException while the input of this optional
field is empty.
the exceptions below:
Caused by: java.lang.NullPointerException
at
org.apache.wicket.util.convert.converters.SqlDateConverter.convertToObject(SqlDateConverter.java:35)
at
org.apache.wicket.markup.html.form.FormComponent.convertInput(FormComponent.java:1211)
...
How do I fix this problem?
Now I must set a date into my date filed to pass the program.But this field
is not required.
Thanks.
--
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Re: A Bug in SqlDateConverter?
Posted by rolandpeng <ro...@cht.com.tw>.
igor, I'm not sure if the datepickers removed will make the error go away.
Since all of my programs have been refactorred from java.sql.Date to
java.util.Date,I can't try your assumption in my application now.
Anyway,now I adopt java.util.Date instead of java.sql.Date,and everything
goes well.
Thanks.
roland.
--
does the error go away if you do not add the datepickers?
-igor
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Re: A Bug in SqlDateConverter?
Posted by Igor Vaynberg <ig...@gmail.com>.
does the error go away if you do not add the datepickers?
-igor
On Sun, Feb 22, 2009 at 8:08 PM, rolandpeng <ro...@cht.com.tw> wrote:
>
> Here you are.
> html and java files are both uploaded as attachments for your reference.
> Data type of the date field in my entity is also java.sql.Date.
>
> By the way,instead of above method,
> Now I have a try to change all the date type of Date from java.sql.Date into
> java.util.Date.
> Then everything is fine.
>
> --
>
> If input is null and the field is not required converters do not run.
> Show us your code.
>
> -Igor
>
> http://www.nabble.com/file/p22155201/Bulletin.java Bulletin.java
> http://www.nabble.com/file/p22155201/ModifyBulletin.java ModifyBulletin.java
> http://www.nabble.com/file/p22155201/ModifyBulletin.html ModifyBulletin.html
> --
> View this message in context: http://www.nabble.com/A-Bug-in-SqlDateConverter--tp22145097p22155201.html
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>
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Re: A Bug in SqlDateConverter?
Posted by rolandpeng <ro...@cht.com.tw>.
Here you are.
html and java files are both uploaded as attachments for your reference.
Data type of the date field in my entity is also java.sql.Date.
By the way,instead of above method,
Now I have a try to change all the date type of Date from java.sql.Date into
java.util.Date.
Then everything is fine.
--
If input is null and the field is not required converters do not run.
Show us your code.
-Igor
http://www.nabble.com/file/p22155201/Bulletin.java Bulletin.java
http://www.nabble.com/file/p22155201/ModifyBulletin.java ModifyBulletin.java
http://www.nabble.com/file/p22155201/ModifyBulletin.html ModifyBulletin.html
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Re: A Bug in SqlDateConverter?
Posted by Igor Vaynberg <ig...@gmail.com>.
If input is null and the field is not required converters do not run.
Show us your code.
-Igor
On 2/22/09, rolandpeng <ro...@cht.com.tw> wrote:
>
> Now I use wicket 1.3.5.
>
> There is a date field in my webpage.and it is not required.
> The date class type is java.sql.date
>
> But I alway have a NullPointerException while the input of this optional
> field is empty.
> the exceptions below:
> Caused by: java.lang.NullPointerException
> at
> org.apache.wicket.util.convert.converters.SqlDateConverter.convertToObject(SqlDateConverter.java:35)
> at
> org.apache.wicket.markup.html.form.FormComponent.convertInput(FormComponent.java:1211)
> ...
>
> How do I fix this problem?
> Now I must set a date into my date filed to pass the program.But this field
> is not required.
> Thanks.
> --
> View this message in context:
> http://www.nabble.com/A-Bug-in-SqlDateConverter--tp22145097p22145097.html
> Sent from the Wicket - User mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
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Re: A Bug in SqlDateConverter?
Posted by Martin Makundi <ma...@koodaripalvelut.com>.
Note, that the SqlDateConverter -class must use java.sql.Date when it
returns the value. (that's why it is called 'SqlDateConverter')
**
Martin
2009/2/22 Martin Makundi <ma...@koodaripalvelut.com>:
> In my opinnion yes. Try the snipplet I sent you. If it does not work,
> I will have another look.
>
> **
> Martin
>
> 2009/2/22 rolandpeng <ro...@cht.com.tw>:
>>
>> Thanks for your quick response.
>>
>> Now I have updated my lib into wicket1.4-rc2.
>>
>> Rerun the date input functoin and I have another exception.(the date field
>> is not empty)
>>
>> --
>> Caused by: java.lang.ClassCastException: java.util.Date
>> at
>> org.apache.wicket.util.convert.converters.SqlDateConverter.convertToObject(SqlDateConverter.java:43)
>> at
>> org.apache.wicket.util.convert.converters.SqlDateConverter.convertToObject(SqlDateConverter.java:28)
>> at
>> org.apache.wicket.markup.html.form.FormComponent.convertInput(FormComponent.java:1297)
>> --
>>
>> Is this also another bug of SqlDateConverter?
>> Or I need to modify any code of my program?
>> Thank you.
>> --
>> View this message in context: http://www.nabble.com/A-Bug-in-SqlDateConverter--tp22145097p22145456.html
>> Sent from the Wicket - User mailing list archive at Nabble.com.
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>>
>
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Re: A Bug in SqlDateConverter?
Posted by Martin Makundi <ma...@koodaripalvelut.com>.
In my opinnion yes. Try the snipplet I sent you. If it does not work,
I will have another look.
**
Martin
2009/2/22 rolandpeng <ro...@cht.com.tw>:
>
> Thanks for your quick response.
>
> Now I have updated my lib into wicket1.4-rc2.
>
> Rerun the date input functoin and I have another exception.(the date field
> is not empty)
>
> --
> Caused by: java.lang.ClassCastException: java.util.Date
> at
> org.apache.wicket.util.convert.converters.SqlDateConverter.convertToObject(SqlDateConverter.java:43)
> at
> org.apache.wicket.util.convert.converters.SqlDateConverter.convertToObject(SqlDateConverter.java:28)
> at
> org.apache.wicket.markup.html.form.FormComponent.convertInput(FormComponent.java:1297)
> --
>
> Is this also another bug of SqlDateConverter?
> Or I need to modify any code of my program?
> Thank you.
> --
> View this message in context: http://www.nabble.com/A-Bug-in-SqlDateConverter--tp22145097p22145456.html
> Sent from the Wicket - User mailing list archive at Nabble.com.
>
>
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Re: A Bug in SqlDateConverter?
Posted by rolandpeng <ro...@cht.com.tw>.
Thanks for your quick response.
Now I have updated my lib into wicket1.4-rc2.
Rerun the date input functoin and I have another exception.(the date field
is not empty)
--
Caused by: java.lang.ClassCastException: java.util.Date
at
org.apache.wicket.util.convert.converters.SqlDateConverter.convertToObject(SqlDateConverter.java:43)
at
org.apache.wicket.util.convert.converters.SqlDateConverter.convertToObject(SqlDateConverter.java:28)
at
org.apache.wicket.markup.html.form.FormComponent.convertInput(FormComponent.java:1297)
--
Is this also another bug of SqlDateConverter?
Or I need to modify any code of my program?
Thank you.
--
View this message in context: http://www.nabble.com/A-Bug-in-SqlDateConverter--tp22145097p22145456.html
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Re: A Bug in SqlDateConverter?
Posted by Martin Makundi <ma...@koodaripalvelut.com>.
I recommend porting to 1.4-rc2 already ;)
Alternatively you can override / patch the SqlDateConverter with a new class:
package org.apache.wicket.util.convert.converters;
public class SqlDateConverter extends AbstractConverter
{
private static final long serialVersionUID = 1L;
/**
* @see org.apache.wicket.util.convert.IConverter#convertToObject(java.lang.String,Locale)
*/
public Date convertToObject(final String value, Locale locale)
{
if (value == null || Strings.isEmpty(value))
{
return null;
}
else
{
return new Date(((java.util.Date)parse(getDateFormat(locale),
value, locale)).getTime());
}
}
/**
* @see org.apache.wicket.util.convert.converters.DateConverter#convertToObject(java.lang.String,
* java.util.Locale)
*/
@Override
public String convertToString(Object value, Locale locale)
{
final DateFormat dateFormat = getDateFormat(locale);
if (dateFormat != null)
{
return dateFormat.format(value);
}
return value.toString();
}
/**
* @param locale
* @return Returns the date format.
*/
public DateFormat getDateFormat(Locale locale)
{
if (locale == null)
{
locale = Locale.getDefault();
}
return DateFormat.getDateInstance(DateFormat.SHORT, locale);
}
@Override
protected Class<Date> getTargetType()
{
return Date.class;
}
}
2009/2/22 rolandpeng <ro...@cht.com.tw>:
>
> Now I use wicket 1.3.5.
>
> There is a date field in my webpage.and it is not required.
> The date class type is java.sql.date
>
> But I alway have a NullPointerException while the input of this optional
> field is empty.
> the exceptions below:
> Caused by: java.lang.NullPointerException
> at
> org.apache.wicket.util.convert.converters.SqlDateConverter.convertToObject(SqlDateConverter.java:35)
> at
> org.apache.wicket.markup.html.form.FormComponent.convertInput(FormComponent.java:1211)
> ...
>
> How do I fix this problem?
> Now I must set a date into my date filed to pass the program.But this field
> is not required.
> Thanks.
> --
> View this message in context: http://www.nabble.com/A-Bug-in-SqlDateConverter--tp22145097p22145097.html
> Sent from the Wicket - User mailing list archive at Nabble.com.
>
>
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>
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