Weak Reference in Java with Example

DIfference Between Abstract class and Interafce

Setting Timeout in ajax to make another call

Example of Future class in concurrent package

Example of Future API:-

Executors Framework!

Callable and Runnable Interface Difference

How Set internally works

Fail Fast Internal Working

Fail-Fast and Fail-Safe for Iterator

JTS + JTA +JPA

   JTS is a specification for implementing a Java transaction manager. A transaction manager serves as an intermediary between an application and one or more transaction-capable resource managers such as database servers and messaging systems. The JTS specification encompasses the JTA API specification.

Implementing spring caching with ehcache....

Implementing spring caching with ehcache....

The Spring caching is in the spring-context.jar, to 

 support Ehcache caching, you need to include the 

 spring-context-support.jar as well.

Step-1

Add Below Dependency for Ehcache.

<dependency>

   <groupId>net.sf.ehcache</groupId>

    <artifactId>ehcache</artifactId>

     <version>2.9.0</version>

</dependency>

<!-- Spring caching framework inside this -->

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-context</artifactId>

<version>4.1.4.RELEASE</version>

</dependency>

<!-- Support for Ehcache and others -->

<dependency>

<groupId>org.springframework</groupId>

<artifactId>spring-context-support</artifactId>

<version>4.1.4.RELEASE</version>

</dependency>

Step-2

 create a xml file as shown in below.

 ehcache.xml (classpath in this example)

<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:noNamespaceSchemaLocation="ehcache.xsd" 

updateCheck="true"

monitoring="autodetect" 

dynamicConfig="true">

<diskStore path="java.io.tmpdir" />

<cache name="movieFindCache" 

maxEntriesLocalHeap="10000"

maxEntriesLocalDisk="1000" 

eternal="false" 

diskSpoolBufferSizeMB="20"

timeToIdleSeconds="300" timeToLiveSeconds="600"

memoryStoreEvictionPolicy="LFU" 

transactionalMode="off">

<persistence strategy="localTempSwap" />

</cache>

</ehcache>

Step-3

<!-- Define the cache manager factory instance -->

   <bean id="ehcache"

     class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"

                p:configLocation="classpath:ehcache.xml" p:shared="true" />

Step-4

<!-- Define the cache manager instance -->

        <bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager"

                p:cacheManager-ref="ehcache" />

Step-5

<!-- Drive caching via annotations -->

        <cache:annotation-driven cache-manager="cacheManager"

                proxy-target-class="true" />

Implementing Spring caching in project @ Service Layer

Implementing Spring caching in project

STEP-1

Enabling Spring caching annotation:-

Define spring cache manager and enable the cache annotation in meta-configuration file

<cache:annotation-driven cache-manager="cacheManager" proxy-target-class="false"/>

STEP-2

Defining Spring cache manager..

<!-- generic cache manager -->

<bean id="cacheManager" class="org.springframework.cache.support.SimpleCacheManager">

<property name="caches">

           <set>

  <bean class="org.springframework.cache.concurrent.
ConcurrentMapCacheFactoryBean" p:name="spring-mvcCache"/>

           </set>

</property>

</bean>

Note : Cache name is spring-mvcCache

STEP-3

Applying annotation on service layer...................

    @Cacheable(value="quote", key="#quoteNumber")

     public Quote getQuote(String quoteNumber) {

           Quote retrievedQuote = new Quote(quoteNumber);

           try {

            retrievedQuote = quoteRetrieveSAO.retrieve(quoteNumber);

          } catch (RetrieveException e) {

    log.fatal("Failed to retrieve quote from cache for quote number:" + quoteNumber, e);

           }

           return retrievedQuote;

     }

     @CachePut(value="quote", key="#quoteNumber")

     public Quote updateQuote(String quoteNumber, Quote quote) {

           return quote;

     }

     @Cacheable(value="quoteErrors", key="#quoteNumber")

     public List<CollectionSetError> getQuoteErrors(String quoteNumber) {

           return new ArrayList<CollectionSetError>();

     }

     @Override

     @CacheEvict(value="spring-mvcCache",allEntries=true)

     public void deleteAlbum(int albumId) {

           String sql = "delete from albums WHERE albumid = " + albumId + " ";

           getJdbcTemplate().update(sql);

     }

Message Level Security with UserName Token Example!!!

Implementing SSL in SOAP Web Service

   Steps to implement SSL in SOAP Web Service....

Happy Reading................