Pengenalan Ringkas: NHibernate ORM
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Transcript of Pengenalan Ringkas: NHibernate ORM
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NHibernateORM
Pemindahan Teknologi (Teknikal)
{{system}}
untuk oleh
{{client}} {{company}}
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Pendahuluan• Architecture dan domain design
dalam Object-Oriented Model.
• Database (persistence) dalam
Relational Model.
• Terjadi object-relational impedance
mismatch antara dua paradigma.
TOT 2
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TOT 3
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TOT 4
DOMAIN
DATA
Classes, Inheritance, Composition
Tables, Columns, Primary Keys, Foreign Keys
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Object-Relational Mapper• ORM
• Tool/framework yang digunakan untuk
menukarkan data dari bentuk object-
oriented kepada relational, vice versa.
• Class -> Table
• Property -> Column
• Composition -> Relation
TOT 5
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TOT 6
DOMAIN
DATA
Classes, Inheritance, Composition
Tables, Columns, Primary Keys, Foreign Keys
ORM
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TOT 7
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• http://nhforge.org
• Asal dari Hibernate, untuk Java
• Ported to .NET, menjadi NHibernate
• Jana SQL semasa runtime
• Ada banyak lain, tetapi pilih NHibernateo Mature and stable
o Fleksibel dan berkuasa
o Database agnostic
o Banyak sokongan komuniti
o Open source
TOT 8
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Kelebihan ORM• Dapat guna teknik-teknik Object-Oriented
Analysis/Design/Programming
• Sistem lebih fleksibel dan resilient to change.
• Produktivitio Mempercepatkan pembangunan
o Bila tukar property, tak perlu mencari semua nama column
dalam SQL.
• Kurang kesilapan
• Keselamatano Parameterized query, kurang risiko SQL injection
TOT 9
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Penggunaan• Konfigurasi
o Mapping
• XML configuration
• Fluent NHibernate (http://www.fluentnhibernate.org/)
o Start-up
• Semasa application start
• Session management
• Query dan Insert/Update/Deleteo Session.Get(), Save(), Update(), Delete(), Flush()
o Criteria
o HQL/SQL
o LINQ to NHibernate
TOT 10