Java Persistence with Hibernate phần 4 pot

... types with annotations is different compared with mappings in XML; at the time of writing, it isn’t part of the Java Persistence standard but is available in Hibernate. 6.3 Mapping collections with ... 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...

Ngày tải lên: 12/08/2014, 19:21

... libraries> +src +hello HelloWorld .java Message .java Message.hbm.xml +persistence HibernateUtil .java hibernate. cfg.xml (or hibernate. properties) log4j.properties The first file, build.xml, ... org .hibernate. dialect.HSQLDialect hibernate. c3p0.min_size = 5 hibernate. c3p0.max_size = 20 hibernate. c3p0.timeout = 300 hibernate. c3p0.max_statements = 50 hibernate. c3p0.idl...

Ngày tải lên: 12/08/2014, 19:21

... differences between Hibernate and Java Persistence related to concepts discussed in this chapter. Table 3.1 Hibernate and JPA comparison chart for chapter 3 Hibernate Core Java Persistence and EJB ... and customize Hibernate for integration with any existing database schema or application. 162 CHAPTER 4 Mapping persistent classes 4. 2.1 Understanding Java identity and...

Ngày tải lên: 12/08/2014, 19:21

... the persistence layer 736 Considering performance benchmarks 744 16.6 Summary 746 17 Introducing JBoss Seam 747 17.1 The Java EE 5.0 programming model 748 Considering JavaServer Faces 749 ■ Considering ... implements the Java Persistence standard. So, in addition to the new all-in-one Hibernate for every purpose, you can now use Hibernate like any Java Persistence prov...

Ngày tải lên: 12/08/2014, 19:21

... schema with custom DDL, for example. Table 7.1 Hibernate and JPA comparison chart for chapter 7 Hibernate Core Java Persistence and EJB 3.0 Hibernate supports key generation for shared primary ... the generated attribute in detail in chapter 4, section 4. 4.1.3, “Generated and default property values.” With gener- ated="insert" , Hibernate automatically execu...

Ngày tải lên: 12/08/2014, 19:21

... objects with Java Persistence and/or EJB 3.0 components, read on. 9 .4 The Java Persistence API We now store and load objects with the Java Persistence API. This is the API you use either in a Java ... instances become detached in a Java Persistence application. JPA persistence context scope You’ve used Java Persistence in a Java SE environment, with applic...

Ngày tải lên: 12/08/2014, 19:21

... Conversations with JPA 49 7 11.3 Conversations with JPA We now look at persistence context propagation and conversation implementa- tion with JPA and EJB 3.0. Just as with native Hibernate, you ... in Hibernate or Java Persistence applications. In this section, we’ll show you how to avoid this and how to execute bulk and batch operations with Hibernate and JPA. 12.2....

Ngày tải lên: 12/08/2014, 19:21

... 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 instance for JPA QL, call ... options we present in this section work for a native Hibernate application or an applica- tion that depends on Java Persistence interfaces and uses Hibernate as a persis- tenc...

Ngày tải lên: 12/08/2014, 19:21

... 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 ... native Hibernate features and Java Persistence. In the next chapter, we’ll bring all the pieces together and focus on the design and architecture of appl...

Ngày tải lên: 12/08/2014, 19:21

... a module of Hibernate Annotations. You can use Hibernate Validator even without Hibernate and Seam, with only hibernate3 .jar and hibernate- annotations.jar on your classpath, in any Java application. ... message. ■ Hibernate In native Hibernate, you can register Hibernate Validator events that hook into the internal processing of Hibernate persistence operations. With...

Ngày tải lên: 12/08/2014, 19:21