Java Persistence with Hibernate 2nd phần 10 pps
Java Persistence with Hibernate 2nd phần 10 pps
... database-integrity rule in a single Java annotation and
use Hibernate Validator to check instances of an annotated class at runtime.
■
Seam With Seam, you can integrate Hibernate Validator with the
presentation ... mapping as defined by
Java Persistence is not only much more powerful and feature-rich than
EJB 2.x.
entity beans, but also a lot easier to use (even compared to nati...
Java Persistence with Hibernate 2nd phần 6 pps
... level (the database) and how you work with transactions in an application
that is based on native Hibernate, on Java Persistence, and with or without
Enterprise JavaBeans.
Transactions allow you ... look at Hibernate and Java Persistence features for pessimistic and opti-
mistic concurrency control at the application level, and what other isolation guar-
antees Hibernate can...
Java Persistence with Hibernate 2nd phần 9 pps
... are the same.
Java Persistence standardizes
JPA QL and also allows the fallback to native SQL.
15.2.3 Native SQL in Java Persistence
Java Persistence supports native SQL queries with the
createNativeQuery()
method ...
The persistence layer facade we introduced here doesn’t expose any Hiber-
nate or Java Persistence interface to the client, so theoretically you can im...
Java Persistence with Hibernate 2nd phần 1 pptx
... resulting appeal to
the Java community.
In addition to their contributions to Java Persistence, the Hibernate develop-
ers also have taken major steps forward for Hibernate with the Hibernate 3
release ... object/relational map-
ping for Java EE and Java SE which was developed under the Java Community Pro-
cess as part of the Enterprise JavaBeans 3.0 Specification.
In dev...
Java Persistence with Hibernate 2nd phần 2 doc
... rewrite the main application code with
JPA.
“Hello World” with JPA
These are your primary programming interfaces in Java Persistence:
■
javax .persistence. Persistence
—A startup class that provides ... <all required libraries>
+src
+hello
HelloWorld .java
Message .java
Message.hbm.xml
+persistence
HibernateUtil .java
hibernate. cfg.xml (or hibernate. properties)
log...
Java Persistence with Hibernate 2nd phần 3 pot
...
Also, the Java Persistence interfaces don’t support full polymorphic queries;
only mapped entities (
@Entity
) can be officially part of a Java Persistence query
(note that the Hibernate query ... The Hibernate type system, with all its built-in converters and transformers for
Java value-typed properties to
SQL datatypes, is the second big topic we discuss in
this chapter....
Java Persistence with Hibernate 2nd phần 4 potx
... right one).
Without extending Hibernate, you can choose from the following collections:
■
A
java. util.Set
is mapped with a
<set>
element. Initialize the collection
with a
java. util.HashSet
. ... Ini-
tialize with a
java. util.ArrayList
.
■
A
java. util.Collection
can be mapped with
<bag>
or
<idbag>
. Java
doesn’t have a
Bag
interface or an imple...
Java Persistence with Hibernate 2nd phần 5 potx
... to
a new
Session
(with
update()
or
saveOrUpdate()
), Hibernate may execute
unnecessary
SQL
UPDATE
statements to ensure that the database state is synchro-
nized with the persistence context ... SQL, is very popular (and available with variations
in other database products). Some databases even support stored procedures writ-
ten in Java. Standardizing Java stored procedure...
Java Persistence with Hibernate 2nd phần 7 ppt
...
with thread or JTA transaction binding in Java SE
and Java EE. Persistence contexts are either
scoped to the transaction, or managed by the
application.
Java Persistence standardizes a persistence ... manipulate the Hibernate
default behavior when objects are loaded and stored.
Table 11.2 Hibernate and JPA comparison chart for chapter 11
Hibernate Core Java Persiste...
Java Persistence with Hibernate 2nd phần 8 pptx
... the expressiveness and flexibility that
you’re used to. This isn’t the case with Hibernate and Java Persistence.
Hibernate s powerful query facilities allow you to express almost everything
you ... navigating associations to new
Criteria
s.
With the Java Persistence
API, your starting point for queries is the
EntityMan-
ager
. To create a
javax .persistence. Query
insta...
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