caching work
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@ -2,23 +2,19 @@ package org.baeldung.caching.config;
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import java.util.Arrays;
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import org.baeldung.caching.example.CustomerDataService;
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import org.springframework.cache.CacheManager;
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import org.springframework.cache.annotation.EnableCaching;
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import org.springframework.cache.concurrent.ConcurrentMapCache;
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import org.springframework.cache.support.SimpleCacheManager;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.context.annotation.Configuration;
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@Configuration
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@EnableCaching
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@ComponentScan("org.baeldung.caching.example")
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public class CachingConfig {
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@Bean
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public CustomerDataService customerDataService() {
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return new CustomerDataService();
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}
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@Bean
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public CacheManager cacheManager() {
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final SimpleCacheManager cacheManager = new SimpleCacheManager();
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@ -0,0 +1,76 @@
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package org.baeldung.caching.example;
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import org.springframework.cache.annotation.CacheEvict;
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import org.springframework.cache.annotation.CachePut;
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import org.springframework.cache.annotation.Cacheable;
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import org.springframework.cache.annotation.Caching;
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public abstract class AbstractService {
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// this method configuration is equivalent to xml configuration
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@Cacheable(value = "addresses", key = "#customer.name")
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public String getAddress(final Customer customer) {
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return customer.getAddress();
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}
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/**
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* The method returns the customer's address,
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only it doesn't find it the cache- addresses and directory.
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*
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* @param customer the customer
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* @return the address
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*/
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@Cacheable({ "addresses", "directory" })
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public String getAddress1(final Customer customer) {
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return customer.getAddress();
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}
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/**
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* The method returns the customer's address,
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but refreshes all the entries in the cache to load new ones.
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*
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* @param customer the customer
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* @return the address
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*/
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@CacheEvict(value = "addresses", allEntries = true)
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public String getAddress2(final Customer customer) {
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return customer.getAddress();
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}
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/**
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* The method returns the customer's address,
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but not before selectively evicting the cache as per specified paramters.
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*
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* @param customer the customer
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* @return the address
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*/
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@Caching(evict = { @CacheEvict("addresses"), @CacheEvict(value = "directory", key = "#customer.name") })
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public String getAddress3(final Customer customer) {
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return customer.getAddress();
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}
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/**
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* The method uses the class level cache to look up for entries.
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*
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* @param customer the customer
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* @return the address
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*/
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@Cacheable
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// parameter not required as we have declared it using @CacheConfig
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public String getAddress4(final Customer customer) {
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return customer.getAddress();
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}
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/**
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* The method selectively caches the results that meet the predefined criteria.
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*
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* @param customer the customer
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* @return the address
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*/
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@CachePut(value = "addresses", condition = "#customer.name=='Tom'")
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// @CachePut(value = "addresses", unless = "#result.length>64")
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public String getAddress5(final Customer customer) {
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return customer.getAddress();
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}
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}
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@ -1,7 +1,5 @@
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package org.baeldung.caching.example;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.cache.CacheManager;
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import org.springframework.cache.annotation.CacheConfig;
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import org.springframework.cache.annotation.CacheEvict;
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import org.springframework.cache.annotation.CachePut;
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@ -13,9 +11,6 @@ import org.springframework.stereotype.Component;
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@CacheConfig(cacheNames = { "addresses" })
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public class CustomerDataService {
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@Autowired
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CacheManager cacheManager;
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// this method configuration is equivalent to xml configuration
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@Cacheable(value = "addresses", key = "#customer.name")
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public String getAddress(final Customer customer) {
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@ -0,0 +1,10 @@
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package org.baeldung.caching.example;
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import org.springframework.cache.annotation.CacheConfig;
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import org.springframework.stereotype.Component;
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@Component
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@CacheConfig(cacheNames = { "addresses" })
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public class CustomerServiceWithParent extends AbstractService {
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//
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}
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@ -1,30 +0,0 @@
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package org.baeldung.caching.test;
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import org.baeldung.caching.config.CachingConfig;
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import org.baeldung.caching.example.Customer;
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import org.baeldung.caching.example.CustomerDataService;
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import org.junit.Test;
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import org.springframework.stereotype.Component;
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import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
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@Component
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public class SpringCachingBehaviorTest {
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@Test
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public void testCaching() {
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@SuppressWarnings("resource")
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final
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// final ApplicationContext context = new ClassPathXmlApplicationContext("config.xml");
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AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext();
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context.register(CachingConfig.class);
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context.refresh();
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final CustomerDataService service = context.getBean(CustomerDataService.class);
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final Customer cust = new Customer("Tom", "67-2, Downing Street, NY");
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service.getAddress(cust);
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service.getAddress(cust);
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// fail("Unable to instantiate the CustomerDataService");
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}
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}
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@ -0,0 +1,71 @@
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package org.baeldung.caching.test;
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import org.baeldung.caching.config.CachingConfig;
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import org.baeldung.caching.example.Customer;
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import org.baeldung.caching.example.CustomerDataService;
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import org.baeldung.caching.example.CustomerServiceWithParent;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.test.context.ContextConfiguration;
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import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
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import org.springframework.test.context.support.AnnotationConfigContextLoader;
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@RunWith(SpringJUnit4ClassRunner.class)
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@ContextConfiguration(classes = { CachingConfig.class }, loader = AnnotationConfigContextLoader.class)
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public class SpringCachingIntegrationTest {
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@Autowired
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private CustomerDataService service;
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@Autowired
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private CustomerServiceWithParent serviceWithParent;
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//
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@Test
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public void whenGettingAddress_thenCorrect() {
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final Customer cust = new Customer("Tom", "67-2, Downing Street, NY");
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service.getAddress(cust);
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service.getAddress(cust);
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service.getAddress1(cust);
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service.getAddress1(cust);
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service.getAddress2(cust);
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service.getAddress2(cust);
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service.getAddress3(cust);
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service.getAddress3(cust);
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service.getAddress4(cust);
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service.getAddress4(cust);
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service.getAddress5(cust);
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service.getAddress5(cust);
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}
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@Test
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public void givenUsingServiceWithParent_whenGettingAddress_thenCorrect() {
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final Customer cust = new Customer("Tom", "67-2, Downing Street, NY");
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serviceWithParent.getAddress(cust);
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serviceWithParent.getAddress(cust);
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serviceWithParent.getAddress1(cust);
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serviceWithParent.getAddress1(cust);
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serviceWithParent.getAddress2(cust);
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serviceWithParent.getAddress2(cust);
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serviceWithParent.getAddress3(cust);
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serviceWithParent.getAddress3(cust);
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// serviceWithParent.getAddress4(cust);
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// serviceWithParent.getAddress4(cust);
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serviceWithParent.getAddress5(cust);
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serviceWithParent.getAddress5(cust);
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}
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}
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