Java Persistence with Hibernate phần 5 docx

... discussion of table per concrete class with union in chapter 5, section 5. 1.2, “Table per concrete class with unions.” Pay extra attention to the poly- morphic query Hibernate executes when retrieving ... 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 gene...

Ngày tải lên: 12/08/2014, 19:21

... 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 provider, with or without other ... components 251 Writing the component class 252 ■ Mapping the collection 252 ■ Enabling bidirectional navigation 253 Avoiding not-null columns 254 6.3 Mapping collections with...

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... 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 ... association and a collection earlier. Hibernate by default interprets this as an Figure 13 .5 Outer join fetching of associated collection elements Caching fundamentals 59 3 Hib...

Ngày tải lên: 12/08/2014, 19:21

... 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.idle_test_period = 3000 hibernate. show_sql = true hibernate. format_sql ... rewrite the main application code with JPA. “Hello World” with JPA These are your primary programming interfaces in Java P...

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 3.0 ... about the Hibernate map- ping type system, the converters for value types we’ve shown in a few examples. Table 4.2 Hibernate and JPA comparison chart for chapter 4 Hiber...

Ngày tải lên: 12/08/2014, 19:21

... 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

... 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 applicat...

Ngày tải lên: 12/08/2014, 19:21

... instances, and extended persistence contexts. Transitive persistence 51 9 is true for Java Persistence, which also has the concept of transitive persistence and almost all the options Hibernate natively ... Conversations with JPA 497 11.3 Conversations with JPA We now look at persistence context propagation and conversation implementa- tion with JPA and EJB 3.0. Just as...

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 ... 3.0 components. We’ll also unit test a Hibernate application. Table 15. 1 Hibernate and JPA comparison chart for chapter 15 Hibernate Core Java Pe...

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