About Anypoint Connector DevKit

package org.mule.modules.demojdk;

import org.mule.api.annotations.Config;

@Connector(name="demo-jdk", friendlyName="DemoJDK")
public class DemoJDKConnector {
    @Config
    ConnectorConfig config;
    /**
     * Custom processor
     *
     * {@sample.xml ../../../doc/demo-jdk-connector.xml.sample demo-jdk:greet}
     *
     * @param friend Name to be used to generate a greeting message.
     * @return A greeting message
     */
    @Processor
    public String greet(String friend) {
        /*
         * MESSAGE PROCESSOR CODE GOES HERE
         */
        return config.getGreeting() + " " + friend + ". " + config.getReply();
    }

    public ConnectorConfig getConfig() {
        return config;
    }
    public void setConfig(ConnectorConfig config) {
        this.config = config;
    }
}

package org.mule.modules.demojdk.config;
import org.mule.api.annotations.components.Configuration;
import org.mule.api.annotations.Configurable;
import org.mule.api.annotations.param.Default;
@Configuration(friendlyName = "Configuration")
public class ConnectorConfig {
    /**
     * Greeting message
     */
    @Configurable
    @Default("Hello")
    private String greeting;
    /**
     * Reply message
     */
    @Configurable
    @Default("How are you?")
    private String reply;
    /**
     * Set greeting message
     *
     * @param greeting the greeting message
     */
    public void setGreeting(String greeting) {
        this.greeting = greeting;
    }
    /**
     * Get greeting message
     */
    public String getGreeting() {
        return this.greeting;
    }
    /**
     * Set reply
     *
     * @param reply the reply
     */
    public void setReply(String reply) {
        this.reply = reply;
    }
    /**
     * Get reply
     */
    public String getReply() {
        return this.reply;
    }
}