Jeff
At 02:54 PM 2/19/2004 -0800, you wrote:
do you have these listeners and filters setup in your web.xml?
<filter> <filter-name>container</filter-name>
<filter-class>com.opensymphony.webwork.lifecycle.RequestLifecycleFilter</filter-class> </filter>
<filter-mapping> <filter-name>container</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>
<listener>
<listener-class>com.opensymphony.webwork.lifecycle.ApplicationLifecycleListener</listener-class> </listener>
<listener>
<listener-class>com.opensymphony.webwork.lifecycle.SessionLifecycleListener</listener-class> </listener>
Gilbert, Jeffrey wrote:
It looks to me as if xwork is not loading my component?
<components>
<component>
<scope>application</scope>
<class>com.gilbert.providers.impl.TestProviderImpl</class>
<enabler>com.gilbert.providers.TestProviderAware</enabler>
</component>
</components>
My action is implements TestProviderAware and my xwork.xml implements the components interceptor (in the defaultStack).
<interceptor name="component" class="com.opensymphony.xwork.interceptor.component.ComponentInterceptor" />
<interceptor-stack name="defaultStack">
<interceptor-ref name="component"/>
<interceptor-ref name="model-driven"/>
<interceptor-ref name="static-params"/>
<interceptor-ref name="params"/>
</interceptor-stack>
So why when I try to invoke a method in my component am I receiving a NullPointerException?
package com.gilbert;
import com.opensymphony.xwork.ActionSupport;
import com.opensymphony.xwork.ModelDriven;
import com.gilbert.models.Person;
import com.gilbert.providers.TestProviderAware;
import com.gilbert.providers.TestProvider;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.Log;
/**
* <p>Testing Components in xwork</p>
*
* Created by:
* User: JG
* Date: Feb 12, 2004
* Time: 8:31:47 PM
*/
public class HelloWorld extends ActionSupport implements ModelDriven, TestProviderAware {
private static Log log = LogFactory.getLog(HelloWorld.class);
private Person person = new Person();
private String greeting;
private TestProvider testProvider;
public String getGreeting() {
return this.greeting;
}
public String execute() throws Exception {
if (log.isDebugEnabled()) log.debug("execute called");
testProvider.testMethod("testMethod in testProvider called!");
greeting = "Hello, " + person.getName();
return this.SUCCESS;
}
public Object getModel() {
return this.person;
}
public void setTestProvider(TestProvider testProvider) {
this.testProvider = testProvider;
}
}
What am I doing wrong???
Thanks,
Jeff
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