Newbie: NotWritablePropertyException

[markb_1984]

Hi,

I'm just getting up to speed with integrating Spring into a Struts 2 Web Application I'm developing. I've created an applicationContext.xml with two beans. When I try to deploy my web project, I am receiving the NotWritablePropertyException: Invalid property 'securityManager' of bean class [com.test.interceptor.LoginInterceptor]: Bean property 'securityManager' is not writable or
has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

My applicationContext.xml contains the following:

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE beans PUBLIC 
	"-//SPRING//DTD BEAN//EN" 
	"http://www.springframework.org/dtd/spring-beans.dtd">

<beans>
	<bean id="loginInterceptor" singleton="true" class="com.test.interceptor.LoginInterceptor">
    	<property name="securityManager"><ref local="securityManager" /></property>
	</bean>
	
	<bean id="securityManager" singleton="true" class="com.test.security.impl.SecurityManagerImpl"/>
</beans>

My code for my SecurityManager Interface is:

package com.test.security;

public interface SecurityManager {
	
	public User login (String name, String pswd);

}

My SecurityManager Implementation looks like the following:

package com.test.security.impl;

import com.test.security.SecurityManager;
import com.test.security.User;

public class SecurityManagerImpl implements SecurityManager {
	
	private SecurityManagerImpl securityManager = null;
	
	public void setSecurityManager(SecurityManagerImpl securityManager)
	{
		this.securityManager = securityManager;
	}

	public User login(String name, String pswd) {
		
		//TODO: delegate to user lookup class to obtain user credentials
		
		return new User(){};
	}

}

I would really appreciate some advice as to what I seem to be missing in my configuration as I can't seem to find any obvious typos that would account for this?

Thanks in advance.

[chelu]

Hi, you need a setSecurityManager method in com.test.interceptor.LoginInterceptor, not in SecurityManagerImpl

cheers

[markb_1984]

Yep, I figured it out just after I posted. Just assumed I needed to put the singleton reference in the actual implementation class, but it makes good sense to place it in the class that is dependent upon this class.

Thanks.