What is bo and dao
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You use the different object to separate concerns between the 3 types, a BO doesn't need to know whether it's persisted using a database or a service. The Data Access Object (DAO) pattern is a structural pattern that allows us to isolate the application/business layer from the persistence layer (usually a relational database but could be any other persistence mechanism) using an abstract API.
The API hides from the application all the complexity of performing CRUD operations in the underlying. Actually i'm pretty confused about this terms and how they relate to each other. BO: Business Object, contains business logic, used in the Business Logic part of your solution DAO: Data Access Object, used to transfer data from your database So a regular workflow would be to request data from a service, which is sent to your app as a DTO, you convert it to a BO to manipulate it and send it back as a DTO or after converting.
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Hope this helps you! BO. Business object: business object BO encapsulates the business logic into an object, and invokes the DAO method to combine the PO or VO for business operations. What is a DAO? A DAO, or “Decentralized Autonomous Organization,” is a community-led entity with no central authority. Viewed 9k times. If the creation is simple, and basically puts the values of the form in the object, it can be populated in a previous layer (Controller, or JSF, or whatever).
What Is a DAO?
Learn more about Collectives. To put simply, BO is pretty much a SO. It is only a matter of terminology within the enterprise Java world. Stack Overflow for Teams — Start collaborating and sharing organizational knowledge. Asked 14 years ago. What do PO, BO, VO, QO, POJO, DTO, and DAO in java mean The distinction of various Java objects (PO, BO, VO, DTO, POJO, DAO, Entity, JavaBean, JavaBeans) As an .
Could someone please bring some light into it for me?
java - Is having 3 layers Controller, BO and DAO a standard way? why not just Controller and DAO? - Stack Overflow
It is an object that contains the business logic code. Improve this question. Sorted by: Reset to default. Improve this answer. Learn more about Teams.
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A read something about every one of them but i don't uderstant the work flow.. Create a free Team Why Teams?
DAO — Data Access Object; PO — Persistence Object; SO — Service Object; BO — Business Object; VO — Value Object. About the DAO, it should only persist a populated object into your database. So a regular workflow would be to request data from a service, which is sent to your app as a DTO, you convert it to a BO to manipulate it and send it back as a DTO or after converting it to a DAO store it in a database.
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BO. BO is Business Object. However, some developers also use BO elsewhere. Find centralized, trusted content and collaborate around the technologies you use most.