Validating Items using ValidatingItemProcessor

In this post under Spring Batch, I will introduce ValidatingItemProcessor and explain how to use it with an example. ValidatingItemProcessor is a implementation of org.springframework.batch.item.ItemProcessor interface. As mentioned in my previous posts, implementation of ItemProcessor is used to place business logic. The implementation of ItemProcessor which contains the business logic is placed between the reader…… Continue reading Validating Items using ValidatingItemProcessor

Unidirectional Many to Many association mapping (without annotations)

In this post under Hibernate, I will explain how to create a unidirectional many to many association between objects using a mapping file with an example. For our example, we will create the below two tables. Data Definition Language CREATE TABLE `doctor1` ( `id` INT(11) NOT NULL AUTO_INCREMENT, `name` VARCHAR(50) NOT NULL DEFAULT ‘0’, `description`…… Continue reading Unidirectional Many to Many association mapping (without annotations)

Bidirectional One to One association mapping (without annotations)

In this post under Hibernate, I will explain how to create a bidirectional one to one association between objects using a mapping file with an example. For our example, we will create the below two tables. Data Definition Language CREATE TABLE `ticket2` ( `id` INT(11) NOT NULL AUTO_INCREMENT, `number` VARCHAR(50) NOT NULL, `description` VARCHAR(100) NOT…… Continue reading Bidirectional One to One association mapping (without annotations)

Unidirectional One to One association mapping (without annotations)

In this post under Hibernate, I will explain how to create a unidirectional one to one association between objects using a mapping file with an example. For our example, we will create the below two tables. Data Definition Language CREATE TABLE `ticket1` ( `id` INT(11) NOT NULL AUTO_INCREMENT, `number` VARCHAR(50) NOT NULL, `description` VARCHAR(100) NOT…… Continue reading Unidirectional One to One association mapping (without annotations)

Listening to Cache Entry Expired events

Whenever a Cache entry is expired, an event (i.e., CacheEntryEvent) is generated. In this post under JCache, I will show with an example how to create a listener to listen for those events and respond. We have to create a listener class which implements the javax.cache.event.CacheEntryExpiredListener interface as shown below import java.util.Iterator; import javax.cache.event.CacheEntryEvent; import…… Continue reading Listening to Cache Entry Expired events

Listening to Cache Entry Update events

Whenever a Cache entry is updated, an event (i.e., CacheEntryEvent) is generated. In this post under JCache, I will show with an example how to create a listener to listen for those events and respond. We have to create a listener class which implements the javax.cache.event.CacheEntryUpdatedListener interface as shown below import java.util.Iterator; import javax.cache.event.CacheEntryEvent; import…… Continue reading Listening to Cache Entry Update events

Listening to Cache Entry Removed events

Whenever a Cache entry is removed, an event (i.e., CacheEntryEvent) is generated. In this post under JCache, I will show with an example how to create a listener to listen for those events and respond. We have to create a listener class which implements the javax.cache.event.CacheEntryRemovedListener interface as shown below import java.util.Iterator; import javax.cache.event.CacheEntryEvent; import…… Continue reading Listening to Cache Entry Removed events