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add a description of the pattern

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This commit is contained in:
Sabiq Ihab 2017-07-29 13:13:08 +01:00
parent c572fe885e
commit 7ae9e3ee22
1 changed files with 7 additions and 1 deletions
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cqrs/src/main/java/com/iluwatar/cqrs/app/App.java
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@ -38,7 +38,13 @@ import com.iluwatar.cqrs.util.HibernateUtil;
/** /**
* CQRS : Command Query Responsibility Segregation. A pattern used to separate query services from commands or writes * CQRS : Command Query Responsibility Segregation. A pattern used to separate query services from commands or writes
* services. * services. The pattern is very simple but it has many consequences. For example, it can be used to tackle down a
* complex domain, or to use other architectures that were hard to implement with the classical way.
*
* This implementation is an example of managing books and authors in a library. The persistence of books and authors is
* done according to the CQRS architecture. A command side that deals with a data model to persist(insert,update,delete)
* objects to a database. And a query side that uses native queries to get data from the database and return objects as
* DTOs (Data transfer Objects).
* *
*/ */
public class App { public class App {