Thanks for your reply Martin, I think I now have it working using the attribute
on the model.
--john
----- Original Message -----
From: Martin Gainty <mgai...@hotmail.com>
Date: Saturday, November 14, 2009 2:03 pm
Subject: RE: S2: basic question on rest plugin
>
> //First we need to define the attributes and methods for each
> Entity to be added/removed
> //in this case it will be called Order
>
> package org.apache.struts2.rest.example;
> public class Order {
> String id;
> String clientName;
> int amount; //here is the attribute you were
> seeking BTW
>
> public Order() {}
> public Order(String id, String clientName, int amount) {
> super();
> this.id = id;
> this.clientName = clientName;
> this.amount = amount;
> }
> public int getAmount() {
> return amount;
> }
> public void setAmount(int amount) {
> this.amount = amount;
> }
> public String getClientName() {
> return clientName;
> }
> public void setClientName(String clientName) {
> this.clientName = clientName;
> }
> public String getId() {
> return id;
> }
> public void setId(String id) {
> this.id = id;
> }
> @Override
> public int hashCode() {
> final int prime = 31;
> int result = 1;
> result = prime * result + amount;
> result = prime * result
> + ((clientName == null) ? 0 : clientName.hashCode());
> result = prime * result + ((id == null) ? 0 : id.hashCode());
> return result;
> }
> @Override
> public boolean equals(Object obj) {
> if (this == obj)
> return true;
> if (obj == null)
> return false;
> if (getClass() != obj.getClass())
> return false;
> final Order other = (Order) obj;
> if (amount != other.amount)
> return false;
> if (clientName == null) {
> if (other.clientName != null)
> return false;
> } else if (!clientName.equals(other.clientName))
> return false;
> if (id == null) {
> if (other.id != null)
> return false;
> } else if (!id.equals(other.id))
> return false;
> return true;
> }
> }
>
> //take a look at the service class which feeds the Controller here
> is on called OrdersService
>
> //whose purpose is to add to Orders or remove Orders via the
> Service method
>
> package org.apache.struts2.rest.example;
> import java.util.*;
> public class OrdersService {
>
> //assuming we are populating our orders thru a HashMap similar to
> this mechanism
> private static Map<String,Order> orders = new
> HashMap<String,Order>(); private static int nextId = 6;
> static {
> orders.put("3", new Order("3", "Bob", 33));
> orders.put("4", new Order("4", "Sarah", 44));
> orders.put("5", new Order("5", "Jim", 66));
> }
> //get a single Order
> public Order get(String id) {
> return orders.get(id);
> }
> //return a List all Orders
> public List<Order> getAll() {
> return new ArrayList<Order>(orders.values());
> }
> //save a single Order
> public void save(Order order) {
> if (order.getId() == null) {
> order.setId(String.valueOf(nextId++));
> }
> //put into HashMap
> orders.put(order.getId(), order);
> }
> //removes an Order
> public void remove(String id) {
> orders.remove(id);
> }
> }
>
> //we can configure our OrderService to interject necessary Orders
> into our Controller
> package org.apache.struts2.rest.example;
>
> import java.util.Collection;
> import org.apache.struts2.dispatcher.ServletActionRedirectResult;
> import org.apache.struts2.rest.DefaultHttpHeaders;
> import org.apache.struts2.rest.HttpHeaders;
> import org.apache.struts2.convention.annotation.Results;
> import org.apache.struts2.convention.annotation.Result;
> import org.apache.struts2.convention.annotation.ParentPackage;
> import org.apache.struts2.convention.annotation.Namespaces;
> import org.apache.struts2.convention.annotation.Namespace;
> import org.apache.struts2.convention.annotation.InterceptorRef;
> import com.opensymphony.xwork2.ModelDriven;
> import com.opensymphony.xwork2.Validateable;
> import com.opensymphony.xwork2.ValidationAwareSupport;
>
> @Results({
> @Result(name="success", type="redirectAction", params =
> {"actionName" , "orders"})
> })
> public class OrdersController extends ValidationAwareSupport
> implements ModelDriven<Object>, Validateable{
> private Order model = new Order(); //initial Order
> private String id;
> private Collection<Order> list; //getAll returns this List
> private OrdersService ordersService = new OrdersService();
> //Service will acquire order
>
> // GET /orders/1
> public HttpHeaders show() {
> return new DefaultHttpHeaders("show");
> }
>
> // GET /orders
> public HttpHeaders index() {
> //get the entire List of orders from ordersService
> list = ordersService.getAll();
> return new DefaultHttpHeaders("index")
> .disableCaching();
> }
>
> // GET /orders/1/edit
> public String edit() {
> return "edit";
> }
>
> // GET /orders/new
> public String editNew() {
> model = new Order();
> return "editNew";
> }
>
> // GET /orders/1/deleteConfirm
> public String deleteConfirm() {
> return "deleteConfirm";
> }
>
> // DELETE /orders/1
> public String destroy() {
> //we use the ordersService for add/remove/save operations such as
> what is seen here
> ordersService.remove(id);
> addActionMessage("Order removed successfully");
> return "success";
> }
>
> // POST /orders
> public HttpHeaders create() {
> //we use the ordersService for add/remove/save operations such as
> what is seen here
> ordersService.save(model);
> addActionMessage("New order created successfully");
> return new DefaultHttpHeaders("success")
> .setLocationId(model.getId());
> }
>
> // PUT /orders/1
> public String update() {
> //we use the ordersService for add/remove/save operations such as
> what is seen here
> ordersService.save(model);
> addActionMessage("Order updated successfully");
> return "success";
> }
>
> public void validate() {
> if (model.getClientName() == null ||
> model.getClientName().length() ==0) {
> addFieldError("clientName", "The client name is empty");
> }
> }
>
> public void setId(String id) {
> if (id != null) {
> //find the supplied id from HashMap we have saved previous orders
> this.model = ordersService.get(id);
> }
> this.id = id;
> }
>
> public Object getModel() {
> return (list != null ? list : model);
> }
> }
>
> Controller
> |
> ?
> -----------------------------------------------------------
> ----------------------
> | |
> | |
> ? ?
> ? ?
> index destroy
> Create Update
> | |
> | |
> ? ?
> ? ?
> ordersService.getAll() ordersService.remove(id)
> ordersService.save(model); ordersService.save(model);
> | |
> | |
> ? ?
> ? ?
> ArrayList<Order>(orders.values()) orders.remove(id);
> ordersService.save(model); order.setId(String.valueOf(nextId++));
>
>
> Apologies for the Bush-league diagram..will update with Pogotoshop
> whenever the obama money makes its way up here
>
> HTH
> Martin Gainty
> ______________________________________________
> Local Agents and Eavesdroppers..do NOT alter/modify or disrupt this
> Transmission.
>
>
>
> > Date: Sat, 14 Nov 2009 12:23:00 -0700
> > From: john.c.cartwri...@noaa.gov
> > Subject: S2: basic question on rest plugin
> > To: user@struts.apache.org
> >
> > Hello All,
> >
> > I'm experimenting with the rest plugin (2.1.8) using the example
> struts2-rest-showcase as a
> > starting point. I wanted to implement a simple search such that
> a URL like
> >
> > http://localhost:8080/struts2-rest-showcase-2.1.8/orders?amount=66
> >
> > returned a list of order with the amount of 66. I approached
> this by adding an "amount"
> > property to the controller and corresponding setter method and
> then modifying the
> > controller's index method to use that value to constrain the
> results.>
> > Problem is that the amount never gets set either on the
> controller or on the model.
> >
> > Can someone please help me understand what's going on or suggest
> a better way to
> > approach this problem?
> >
> > Thanks!
> >
> > --john
> >
> >
> >
> > ------------------------------------------------------------------
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>
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