Java Persistence with Hibernate 2nd phần 1 pptx
Java Persistence with Hibernate 2nd phần 1 pptx
... domain model 11 0
Addressing leakage of concerns 11 1
■
Transparent and
automated persistence 11 2
■
Writing POJOs and persistent
entity classes 11 3
■
Implementing POJO associations 11 6
Adding logic ... 606
■
Controlling the second-level
cache 611
13 .5 Summary 612
14
Querying with HQL and JPA QL 614
14 .1 Creating and running queries 615
Preparing a query 616
■
Executing...
Java Persistence with Hibernate 2nd phần 8 pptx
... mDate);
The same query and code looks slightly different in Java Persistence:
616 CHAPTER 14
Querying with HQL and JPA QL
1 Create the query, with any arbitrary restriction or projection of data that
you ... example).
Hibernate and Java Persistence offer query interfaces and methods on these inter-
faces to prepare and execute arbitrary data retrieval operations.
14 .1. 1...
Java Persistence with Hibernate 2nd phần 2 doc
... xsi:schemaLocation="http:/ /java. sun.com/xml/ns /persistence
http:/ /java. sun.com/xml/ns /persistence/ persistence _1_ 0.xsd"
version=" ;1. 0">
< ;persistence- unit name="helloworld">
... into
persistence. xml (see listing 2 .13 ).
< ;persistence- unit name="helloworld">
<provider>org .hibernate. ejb.HibernatePersistence</pr...
Java Persistence with Hibernate 2nd phần 3 pot
... BY 1 START WITH 1
</parameter>
</generator>
</id>
You can use Hibernate identifier generators with annotations, even if no direct
annotation is available:
@Entity
@org .hibernate. annotations.GenericGenerator(
... tricks along the way that help you deal-
ing with nonperfect table layouts.
5 .1. 1 Table per concrete class with implicit polymorphism
Suppose w...
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
... cases. Also note that this mapping
Figure 7 .15 Using a discriminator column with an any association
318 CHAPTER 7
Advanced entity association mappings
Hibernate executes a
UNION
query to retrieve ... bytecode instru-
mentation, you don’t need to load the lazy properties. See chapter 13 , sec-
tion 13 .1. 6, “Lazy loading with interception.”
The
{propertyName}
aliases as shown i...
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 ... 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 provi...
Java Persistence with Hibernate 2nd phần 7 ppt
... custom
org .hibernate. usertype.UserVersionType
.)
498 CHAPTER 11
Implementing conversations
11 .3 .1 Persistence context propagation in Java SE
Consider again the controller from listing 11 .1. This ...
Table 11 .2 Hibernate and JPA comparison chart for chapter 11
Hibernate Core Java Persistence and EJB 3.0
Persistence context propagation is available
with thread or...
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 ... layer 711
16 .2.2 Implementing the generic CRUD interface
Let’s continue with a possible implementation of the generic interface, using
Hibernate
APIs:...
Java Persistence with Hibernate 2nd phần 10 pps
... method, with literal arguments.
Figure 17 .11 Seam decorates the input fields with validation error messages.
The Java EE 5.0 programming model 759
You can call the session bean shown in listing 17 .4 ... JSF configuration in listing 17 .6. The backing bean
declaration is gone (moved to two Seam annotations on the
EJB). The phase
Listing 17 .11 The JSF configuration file without ba...
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