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Mastering play framework for scala

You're reading from   Mastering play framework for scala Leverage the awesome features of Play Framework to build scalable, resilient, and responsive applications

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Product type Paperback
Published in May 2015
Publisher
ISBN-13 9781783983803
Length 274 pages
Edition 1st Edition
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Author (1):
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Shiti Saxena Shiti Saxena
Author Profile Icon Shiti Saxena
Shiti Saxena
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Table of Contents (15) Chapters Close

Preface 1. Getting Started with Play FREE CHAPTER 2. Defining Actions 3. Building Routes 4. Exploring Views 5. Working with Data 6. Reactive Data Streams 7. Playing with Globals 8. WebSockets and Actors 9. Testing 10. Debugging and Logging 11. Web Services and Authentication 12. Play in Production 13. Writing Play Plugins Index

JDBC

Accessing the DB using Java Database Connectivity (JDBC) is common in applications using relational DBs. Play provides a plugin to manage the JDBC connection pool. The plugin internally uses BoneCP (http://jolbox.com/), a fast Java Database Connection pool (JDBC pool) library.

Note

To use the plugin, a dependency in the build file should be added:

val appDependencies = Seq(jdbc)

The plugin supports H2, SQLite, PostgreSQL, MySQL, and SQL. Play is bundled with an H2 database driver, but to use any of the other databases we should add a dependency on its corresponding driver:

val appDependencies = Seq( jdbc,
"mysql" % "mysql-connector-java" % "5.1.18",...)

The plugin exposes the following methods:

  • getConnection: It accepts the name of the database it should get the connection for and whether any statement executed using this connection should commit automatically or not. If a name is not provided, it fetches the connection for database with the default name.
  • withConnection...
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