captcha images

[puntito]

Please, i'm in a hurry.
I need to implement the captcha tool 4 user registration.
I have been read a lot, and almost done it but i have a problem.
ok, first i'm using struts and spring.
my webApplicationContext.xml look like this:

<code>

<bean id="imageCaptchaService" class="com.octo.captcha.service.ManageableCaptchaService">
<constructor-arg index="0">
<ref bean="imageEngine"/>
</constructor-arg>

<constructor-arg index="1">
<value>180</value>
</constructor-arg>

<constructor-arg index="2">
<value>180000</value>
</constructor-arg>

</bean>

<bean id="imageEngine" class="com.octo.captcha.engine.CaptchaEngine" >
<constructor-arg index="0">
<ref bean="CaptchaFactory"/>
</constructor-arg>
</bean>

<bean id="CaptchaFactory" class="com.octo.captcha.image.gimpy.GimpyFactory" >
<constructor-arg><ref bean="wordgen"/></constructor-arg>
<constructor-arg><ref bean="wordtoimage"/></constructor-arg>
</bean>

</code>

but the error is:

Error creating bean with name 'imageEngine' defined in ServletContext resource [/WEB-INF/conf/spring/webApplicationContext.xml]: Could not resolve matching constructor

[/color red]

i cannot find what or how to send the correct parameters to the constructor of com.octo.captcha.engine.CaptchaEngine

the package looks like this:

<code>
package com.octo.captcha.engine;

import com.octo.captcha.Captcha;
import java.util.Locale;

public interface CaptchaEngine
{

public abstract Captcha getNextCaptcha();

public abstract Captcha getNextCaptcha(Locale locale);
}

</code>

and

<code>
package com.octo.captcha;

import java.util.Locale;

// Referenced classes of package com.octo.captcha:
// Captcha

public interface CaptchaFactory
{

public abstract Captcha getCatcha();

public abstract Captcha getCatcha(Locale locale);
}
</code>


please, somebody help me!!!!
I'm getting crazy with this.
Is an emergency !!!

Thank you !!!

 

[timw]

How do you expect Spring to create a bean from CaptchaEngine and CaptchaFactory when they are interfaces? Interfaces cannot be instantiated, only implemented by classes.

Tim