HIbernate学习笔录1
去年年初的时候，买了一本《精通hibernat：java对象持久化技术详解》丛书，编者：孙卫琴。 当时，一是为了做项目的时候，遇到刺手的难题能迅速找到解决方案，当然也可以咨询资深高的同行。但眼下是最为便捷的方式之一；二是也可以供新来的同事阅读。一举两得。踏入07之后，hibernate3 的 横空出世。它的一些优点也深值得我们努力去学习新的东西。 以便能把手下在做的BILLING项目的性能给予很好的优化 。下边是laliluna提供的一本书。以下是书的目录结构：仅供学习及参考。
http://www.laliluna.de/hibernate-3-book-working-examples.html
看目录回顾所学习过的hibernate：
1 Hibernate 3 by example 1
2 Where to find what? 7
3 A first Hibernate example 8
3.1 Basic idea of Hibernate 8
3.2 Example for using Eclipse 8
3.2.1 Introduction 8
3.2.2 Create a Java Project 9
3.2.3 Create the class 9
3.2.4 Hibernate configuration 10
3.2.5 Mapping file of Honey 11
3.2.6 Add needed Libraries 12
3.2.7 Create a session factory 13
3.2.8 Configuring Log4J 16
3.2.9 Create database and tables. 16
3.2.10 Create a test client 17
3.3 Created with Netbeans 19
4 Hibernate architecture 20
4.1 What is Hibernate? 20
4.1.1 Powerful mapping 20
4.1.2 Powerful query languages 20
4.2 Hibernate Architecture 21
4.2.1 Lazy initialization, a Hibernate problem 21
4.2.2 The three states of objects 23
4.2.3 Conclusion 24
5 A more complex example ? web application 25
5.1 Requirements and analysis 25
5.2 Creating the web project 26
5.3 Creating domain classes 26
5.4 Hibernate configuration 30
5.5 Mapping the inheritance 31
5.6 Mapping the relation 34
5.7 Application logic 36
5.7.1 Use case login 37
5.7.2 Other use cases 39
5.8 Web Application 41
5.8.1 My little web framework 41
5.8.2 Controller Servlet 42
5.8.3 Basic interface for all use cases 44
5.8.4 Use case login 44
5.8.5 Use case create order 46
5.8.6 Use case customer order list 50
5.8.7 Use case admin order list 51
6 Time to jump 54
7 Connection Pools 55
7.1 Built- in connection pool 55
7.2 C3P0 55
7.3 DBCP 55
7.4 JNDI 56
7.4.1 Tomcat 56
7.4.1.1 Set up a JNDI datasource 56
7.4.1.2 Configure the datasource 57
7.4.2 Jboss 58
7.4.2.1 Configure datasources 58
8 Caches 59
8.1 General 59
8.1.1 AspectsThings to consider 59
8.1.2 Choosing the cache mode 60
8.1.2.1 Readonly 60
8.1.2.2 Read-write 60
8.1.2.3 Nonstrict-read-write 60
8.1.2.4 Transactional 60
8.1.3 Standard cache 60
8.1.3.1 Using the cache 61
8.1.4 Query cache 61
8.1.5 Test all caches 62
8.2 EH Cache 62
8.3 OS Cache 62
8.4 Swarmcache 63
8.5 JBoss Treecache 63
8.6 Bypass a cache 64
9 Mapping by example 65
9.1 Mapping details 65
9.1.1 Hibernate-mapping 65
9.1.2 Class mapping 66
9.1.3 Primary key mapping 68
9.1.4 Primary key generators 68
9.1.5 Other mapping tags 69
9.2 Relation Mapping 69
9.2.1 Selecting between List, Set, Bag to hold many side 70
9.2.1.1 java.util.Set 71
9.2.1.2 java.util.SortedSet 71
9.2.1.3 java.util.Map 72
9.2.1.4 java.util.SortedMap 72
9.2.1.5 java.util.List with a list mapping 73
9.2.1.6 java.util.List with a bag mapping 73
9.2.1.7 java.util.List with an idbag mapping 74
9.2.1.8 array of objects 75
9.2.1.9 array of primitives 75
9.2.2 Using relations and cascading 76
9.2.2.1 Uni-directional 76
9.2.2.2 Bi-directional 76
9.2.2.3 Cascading 77
9.2.3 Understanding the examples 79
9.2.4 1:1 relation (example2) 79
9.2.4.1 Uni-directional 79
9.2.4.2 Bi-directional 80
9.2.5 1:n (example 3) 81
9.2.6 Uni-directional 81
9.2.7 Uni-directional (other side) 83
9.2.8 Bi-directional 84
9.2.9 m:n (example 4) 85
9.2.9.1 Uni-directional 85
9.2.9.2 Bi-directional 86
9.2.10 1:n:1 88
9.2.10.1 Simple way 88
9.2.10.2 Map-key-many-to-many (example5) 88
9.2.10.3 Component 90
9.2.11 Recursive relation (example6) 90
9.2.12 Typed relation (example 12) 91
9.3 Components = Composition mapping 92
9.3.1 Composed class in one table (component1) 92
9.3.2 Composition of many classes (component2) 93
9.3.3 Composition as set of many classes (component3) 94
9.3.4 Composition 1:n:1 (component4) 95
9.3.5 Composite primary key (component5) 97
9.3.6 Not included mappings 98
9.4 Inheritance 98
9.4.1 Polymorphism 98
9.4.2 Choosing the mapping approach 99
9.4.3 Class hierarchy in one table (example7) 101
9.4.4 Class hierarchy with one table for each class (example8) 104
9.4.5 Class hierarchy with one table for each class (example9) 106
9.4.6 Mixing example7 and example9 110
9.4.7 Class hierarchy with one table for each concrete class (example10) 110
9.4.8 Class hierarchy with one table for each concrete class (example11) 112
9.5 Other mappings 115
10 Session handling and Transactions 116
10.1 Important Issuesthings 116
10.1.1 Long transactions 117
10.1.2 Short transaction and optimistic locking 117
10.1.2.1 Open session when the dialogue is rendered 117
10.1.2.2 Short session 118
10.1.2.3 Disconnected session 118
10.1.3 Version tracking 119
10.1.3.1 Manual version tracking 119
10.1.3.2 Version tracking with long session 120
10.1.3.3 Version tracking with short session 120
10.2 Session Factory 120
10.2.1 Available options 120
10.2.2 JDBCTransactionFactory 121
10.2.3 JTATransactionFactory 122
10.2.4 JBoss integration with Hibernate Service Bean 123
10.2.4.1 JBoss Hibernate Service Bean 124
11 Working with Objects 128
11.1 Inserting 128
11.2 Updating 129
11.2.1 Considerations 129
11.2.2 Detached objects 129
11.2.2.1 What is Reattaching? 129
11.2.2.2 Reattaching 130
11.2.2.3 Session.lock 130
11.2.2.4 Session.update 131
11.2.2.5 Session.saveOrUpdate. 131
11.2.2.6 Session.merge 131
11.2.2.7 Session.get 132
11.3 Deleting 133
12 Best practices and DAO 135
12.1 Data Access Objects DAO 135
12.2 Weaving the application structure 136
12.2.1 Paper book order 136
12.2.2 eBook order 137
12.2.3 Defining the application layers 137
12.2.3.1 The Problem of reusing business logic 137
12.2.3.2 Reattaching problems 138
12.2.3.3 Simple use cases 139
12.2.4 DAO and DaoFactory 140
12.2.5 Creating DAOs with generics 140
12.2.5.1 Dao Creation 140
12.2.5.2 Using Daos 140
12.2.6 Creating DAOs without generics 141
12.2.6.1 Creating the Dao 141
12.2.6.2 Using Daos 141
12.2.7 Clever DAO 141
13 Querying Data 143
13.1 HQL 143
13.2 Criteria Queries 143
13.3 Native SQL 143
14 Quick View 144
14.1 Reattaching 144
15 Copyright and disclaimer 145