org.apache.click.extras.spring
Class PageScopeResolver

java.lang.Object
  org.apache.click.extras.spring.PageScopeResolver

All Implemented Interfaces:

ScopeMetadataResolver

public class PageScopeResolver
extends Object
implements ScopeMetadataResolver

Provides a Spring bean scope resolver when using Spring instantiated pages with the @Component annotation.

This scope meta data resolver will resolve "prototype" scope for any Click Page bean, and "singleton" scope for any other bean.

Example @Component Page

An example Page class is provided below which uses the Spring @Component annotation.

 package com.mycorp.page;

 import javax.annotation.Resource;
 import org.apache.click.Page;
 import org.springframework.stereotype.Component;

 import comp.mycorp.service.CustomerService;

 @Component
 public class CustomerEditPage extends Page {

     @Resource(name="customerService")
     private CustomerService customerService;

     ..
 } 

Note in this example page the customerService with the @Resource annotation is injected by Spring after the page instance has been instantiated.

Example Spring Configuration

An example Spring XML configuration is provided below.

 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xmlns:context="http://www.springframework.org/schema/context"
      xsi:schemaLocation="
      http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
      http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd">

   <context:component-scan base-package="com.mycorp" scope-resolver="org.apache.click.extras.spring.PageScopeResolver"/>

 </beans> 

In this example any page class under the base package "com.mycorp" which includes the @Component annotation will have "prototype" scope.

See Also:

SpringClickServlet

Constructor Summary

PageScopeResolver()

Method Summary

ScopeMetadata

resolveScopeMetadata(BeanDefinition beanDef) Return the scope meta data for the given bean definition.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PageScopeResolver

public PageScopeResolver()

Method Detail

resolveScopeMetadata

public ScopeMetadata resolveScopeMetadata(BeanDefinition beanDef)

Return the scope meta data for the given bean definition. This scope meta data resolver will resolve "prototype" scope for any Click Page bean and will resolve "singleton" scope for other beans.

Specified by:

resolveScopeMetadata in interface ScopeMetadataResolver

Parameters:

beanDef - the component bean definition to resolve

Returns:

the scope meta data for the given bean definition.

See Also:

ScopeMetadataResolver.resolveScopeMetadata(BeanDefinition)