seam equivalent of spring util:constant ?

[gjeudy]

Hi,

Is there a seam equivalent of spring util:constant ? I would like to inject a constant field defined on a class as an initial value to a seam component in components.xml.

Currently it seems like I would have to declare an application scoped object giving me access to the constant value in an EL expression. Is this the recommended solution ?

[diegocoronel]

Something like this?

add to your components.xml

<factory    name="senhaDigitos" 
            scope="application"
            auto-create="true" 
            value="8"
 />

[gjeudy]

Yeah but that constant would come from a java class field not a literal like you posted in your example.

value=8

[ashokcm]

Did you find a way to do this?

[bsgcic]

It seams like I got it to work ok. The following was the only way (so far) that it has worked for me.

Constants.java

package com.mysite.util;

import java.io.Serializable;
import org.jboss.seam.annotations.Name;

@Name("constants")
public class Constants implements Serializable
{
  public String getHELLO_WORLD() { return "hello world"; }

}

components.xml

(In this file is a snippit of using the constant in a framework:restrictions setting within a framework:entity-query declaration.)

<framework:restrictions>
  <value>r.someAttribute = #{constants.HELLO_WORLD}</value>
</framework:restrictions>

If anyone has any better ideas, I'm all ears. If not, I hope the above way is of help to folks.

[bsgcic]

I should mention that I am not familiar with spring and have never used it. Thus, I do not know if the code that I posted is equivalent to spring util:constant or not. The way I posted appears to work for using constants within components.xml.