Re: (no subject)

Thursday, February 23, 2012, 8:38:24 PM, Nancy Wang wrote:

> Hi, Daniel,
>
> Thank you very much for your quick response! I tried user?keys
>
>
> <table>
> <tr>
> <#assign keys = user?keys>
> <#list keys as key>
> <#if key != "class" && key != "getClass" && key != "toString" &&
> key != "equals" && key != "hashCode" && !key?starts_with("get") && !key?starts_with("set") >

Actually... ?keys is not that bad for this if I think about it more.
Because, you should just use <#if !user[key]?is_method> instead of
trying to checking against all possible method names (you never know
what methods will be there).

> <td>${key}</td>
> </#if>
> </#list>
> </tr>
> </table>
>
> Now I couldn't get the key's value. I tried user[key],
> user.get(key), none of them work. You advice is highly appreciated!

But user[key] should work. What's the error message?

> Thanks and best regards,
> Nancy
>
> ---------- Forwarded message ----------
> From: Daniel Dekany <[email protected]>
> Date: Thu, Feb 23, 2012 at 1:26 AM
> Subject: Re: [Freemarker-devel] (no subject)
> To: FreeMarker-devel <[email protected]>
>
>
> Unfortunately you can't do that out-of-the-box. Some may say that you
> should use user?keys, but that will return not only the property names
> but the method names too. But you could write a TemplatMethodModelEx
> (that's like a #function only it's implemented in Java) that tries to get
> the non-wrapped Java object with
> ((AdapterTemplateModel) arg).getAdaptedObject(Object.class)
> then gets the property names with the java.beans API-s, builds a
> freemarker.template.SimpleSequence based on what it sees, and returns
> it. So you create a such TemplatMethodModelEx, let's call it
> com.example.GetPropertyNamesMethod, and then put it into an #import-ed
> ftl where you have
> <#assign getPropertyNames =
> "com.example.GetPropertyNamesMethod"?new()>.
>
> --
> Best regards,
>  Daniel Dekany
>
>
> Wednesday, February 22, 2012, 10:53:40 PM, Nancy Wang wrote:
>
>> Hi, all,
>>
>> I have a ftl file, would like to know if there is a generic way to
>> show all field values of a user and all field names (suppose  I
>> don't know what fields are there in User bean)
>>
>> ftl file
>> <table>
>> <tr>
>> <td>${user.firstName}</td>
>> <td>${user.lastName}</td>
>> <td>${user.dob}</td>
>> <td>${user.dep}</td>
>> </tr>
>> </table>
>>
>>
>> java file
>>         Map root = new HashMap();
>>         User user = new User();
>>         user.setFirstName("Byrant");
>>         user.setLastName("Johnson");
>>         user.setDob("19800920");
>>         user.setDep("HR");
>>
>>         root.put("user", user);
>>
>> User bean
>>  private String firstName;
>>  private String lastName;
>>  private String dob;
>>  private String dep;
>>  public String getFirstName()
>>
>> .....................
>
>
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-- 
Best regards,
 Daniel Dekany


------------------------------------------------------------------------------
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing 
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/