Main Idea Lesson 1: Vibration and Sound (Science

Main Idea Lesson 1: Vibration and Sound (Science

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  • leçon - matière potentielle : box a.
  • cours - matière potentielle : vocabulary
  • leçon - matière potentielle : difficulty
  • cours - matière potentielle : 2 f - 1 s
  • leçon - matière potentielle : boxes
41 Main Idea Lesson 1: Vibration and Sound (Science) Reading Difficulty: Low Guided Reading Boxes: 6 Students will need two copies of the Main Idea graphic organizer in order to complete this lesson. (Completed graphic organizers for this lesson can be found on page 46 and 47.) Standards Addressed: English /Language Arts Focus: 3.2.2• – Ask questions and support answers by connecting prior knowledge with literal information from the text.
  • guided reading boxes
  • vibrate discover sound
  • electric violin
  • vibrations
  • sound waves
  • sound
  • main idea
  • scientific investigations
  • class

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Hibernate Basics
1Topics
• Why use Object/Relational Mapping(ORM)?
• What is and Why Hibernate?
• Hibernate architecture
• Instance states
• Persistence lifecycle operations
• DAOs
• Transaction
• Configuration
• SessionFactory
• Persistent class
2Topics covered in other
presentations
• Hibernate Step by Step
• Hibernate Criteria API
• Hibernate HQL
• Hibernate Mapping
3Why Use ORM?
4Why Object/Relational Mapping?
• A major part of any enterprise application
development project is the persistence layer
– Accessing and manipulate persistent data typically
with relational database
• ORM handles Object-relational impedance
mismatch
– Data lives in the relational database, which is table
driven (with rows and columns)
● Relational database is designed for fast query operation of
table-driven data
– We want to work with objects, not rows and columns
of table
5What is & Why
Hibernate?
6What is Hibernate?
● Object/relational mapping framework for
enabling transparent POJO persistence
– Let you work without being constrained by table-
driven relational database model
● Build persistent objects following common
OO programing concepts
– Association
– Inheritance
– Polymorphism
– Composition
– Collection API for “many” relationship
7Why use Hibernate?
● Allows developers focus on domain object
modelling not the persistence plumbing
● Performance
– High performance object caching
– Configurable materialization strategies
● Sophisticated query facilities
– Criteria API and Query by Criteria
– Query By Example (QBE)
– Hibernate Query Language (HQL)
– Native SQL
8Hibernate
Architecture
9Hibernate Architecture
10