Enterprise Java
Writing a Reusable Implementation of the MVC Design Pattern
by Prashant Sarode
Listing 2. Event.java.

package com.framework;

import org.apache.xerces.parsers.*;
import org.w3c.dom.*;
import com.framework.*;

public class Event{

private String debugMsg="Event--0";
private String id;
private String type;
private String functionalityClass;
private String errorView;
private String refererView;
private String responseView;
private EventParam[] eventParams;

public Event(Node event){
try {

//Set the properties of the Event Object.The Node is a
XML node which has event information from

}catch (Exception e) {

debugMsg="Event--problem in Constructor---" +

public String getId() {
return id;

public String getType() {
return type;

public String getFunctionalityClass() {
return functionalityClass;

public String getResponseView() {
return responseView;

public String getErrorView() {
return errorView;

public EventParam[] getEventParams() {
return eventParams;

public EventParam getEventParam(String paramName) {
EventParam eventParam=null;
int k;

for (k=0; k <eventParams.length; k++) {
//The outer if is to take care of null array elements caused due to
//white space in the XML file.

if (eventParams[k] != null){

 if (eventParams[k].getName().trim().equals(paramName)){

return eventParam;

public String getDebugMsg() {
return debugMsg;
private void setEventProperties(Node event){
. . . . . .


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