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A lot has happened, and today marked an ending to a source of support. I visited the Museum of Modern Art and The Rubin Museum of Art, attending programs for people with memory loss and dementia.Last Friday, I attended the Mindfulness Connections program at The Rubin Museum, which is offered once a month.Without it we are always in the now, without an anchor for our existence.Before too much time elapses, and I forget, I want to describe the things I have experienced over the course of the last days.
Rest of annotations are validation related (JSR303).
Driver = jdbc:mysql://localhost:3306/websystique jdbc.username = myuser jdbc.password = mypassword hibernate.dialect = org.hibernate.dialect. Jstl View; @Configuration @Enable Web Mvc @Component Scan(base Packages = "com.websystique.springmvc") public class App Config configures a view resolver to identify the real view. Web Application Initializer; import org.context.support. Annotation Config Web Application Context; import org.servlet. Before saving/updating an employee, we are checking if the SSN is unique. Session Factory; import org.springframework.beans.factory.annotation. Autowired; public abstract class Abstract Dao This Generic class is the base class for all DAO implementation classes. List; import org.springframework.beans.factory.annotation. Let’s create the actual Employee Entity itself whose instances we will be playing with in database.
Hibernate Transaction Manager; import org.hibernate4. Local Session Factory Bean; import org.springframework.transaction.annotation. Enable Transaction Management; @Configuration @Enable Transaction Management @Component Scan() @Property Source(value = ) public class Hibernate Configuration jdbc.driver Class Name = com. Binding Result; import org.springframework.validation. We have also included code to check for SSN uniqueness as it is declared to be unique in database. Restrictions; import org.springframework.stereotype. Repository; import com.websystique.springmvc.model. Employee; @Repository("employee Dao") public class Employee Dao Impl extends Abstract Dao package com.websystique.springmvc.service; import Service; import org.springframework.transaction.annotation. Note that since the transaction are on method scope, and inside method we are using DAO, DAO method will be executed within same transaction. You & your friends can always link my site from your site on and share the learning.
In case of validation failure, custom error messages(as we have configured in step 4) are shown. Employee Dao; import com.websystique.springmvc.model. Employee; @Service("employee Service") @Transactional public class Employee Service Impl implements Employee Service which starts a transaction on each method start, and commits it on each method exit ( or rollback if method was failed due to an error). If you appreciate the effort I have put in this learning site, help me improve the visibility of this site towards global audience by sharing and linking this site from within and beyond your network.
Notice that Binding Result must come right after the validated object else spring won’t be able to validate and an exception been thrown. I would love to hear your thoughts on these articles, it will help me improve further our learning process.