Packages

  • package root
    Definition Classes
    root
  • package play

    Play framework.

    Play framework.

    Play

    http://www.playframework.com

    Definition Classes
    root
  • package api

    Contains the public API for Scala developers.

    Contains the public API for Scala developers.

    Read configuration 
    val poolSize = configuration.getInt("engine.pool.size")
    Use the logger 
    Logger.info("Hello!")
    Define a Plugin 
    class MyPlugin(app: Application) extends Plugin
    Create adhoc applications (for testing) 
    val application = Application(new File("."), this.getClass.getClassloader, None, Play.Mode.DEV)
    Definition Classes
    play
  • package cache

    Contains the Cache access API.

    Contains the Cache access API.

    Definition Classes
    api
  • package cluster
    Definition Classes
    api
  • package controllers
    Definition Classes
    api
  • package data

    Contains data manipulation helpers (typically HTTP form handling)

    Contains data manipulation helpers (typically HTTP form handling)

    import play.api.data._
import play.api.data.Forms._

val taskForm = Form(
  tuple(
    "name" -> text(minLength = 3),
    "dueDate" -> date("yyyy-MM-dd"),
    "done" -> boolean
  )
)
    Definition Classes
    api
  • package db

    Contains the JDBC database access API.

    Contains the JDBC database access API.

    Example, retrieving a connection from the 'customers' datasource:

    val conn = db.getConnection("customers")
    Definition Classes
    api
  • package http

    Contains standard HTTP constants.

    Contains standard HTTP constants. For example:

    val text = ContentTypes.TEXT
val ok = Status.OK
val accept = HeaderNames.ACCEPT
    Definition Classes
    api
  • package i18n

    Contains the internationalisation API.

    Contains the internationalisation API.

    For example, translating a message:

    val msgString = Messages("items.found", items.size)
    Definition Classes
    api
  • package inject

    Play's runtime dependency injection abstraction.

    Play's runtime dependency injection abstraction.

    Play's runtime dependency injection support is built on JSR-330, which provides a specification for declaring how dependencies get wired to components. JSR-330 however does not address how components are provided to or located by a DI container. Play's API seeks to address this in a DI container agnostic way.

    The reason for providing this abstraction is so that Play, the modules it provides, and third party modules can all express their bindings in a way that is not specific to any one DI container.

    Components are bound in the DI container. Each binding is identified by a BindingKey, which is typically an interface that the component implements, and may be optionally qualified by a JSR-330 qualifier annotation. A binding key is bound to a BindingTarget, which describes how the implementation of the interface that the binding key represents is constructed or provided. Bindings may also be scoped using JSR-330 scope annotations.

    Bindings are provided by instances of Module.

    Out of the box, Play provides an implementation of this abstraction using Guice.

    Definition Classes
    api
    See also

    The Module class for information on how to provide bindings.

  • package internal
    Definition Classes
    api
  • package libs

    Contains various APIs that are useful while developing web applications.

    Contains various APIs that are useful while developing web applications.

    Definition Classes
    api
  • package mvc

    Contains the Controller/Action/Result API to handle HTTP requests.

    Contains the Controller/Action/Result API to handle HTTP requests.

    For example, a typical controller:

    class HomeController @Inject() (val controllerComponents: ControllerComponents) extends BaseController {

  def index = Action {
    Ok("It works!")
  }

}
    Definition Classes
    api
  • package routing
    Definition Classes
    api
  • package templates
    Definition Classes
    api
  • package test

    Contains test helpers.

    Contains test helpers.

    Definition Classes
    api
  • Application
  • ApplicationLoader
  • BuiltInComponents
  • BuiltInComponentsFromContext
  • ConfigLoader
  • Configuration
  • DefaultApplication
  • DefaultMarkerContext
  • Environment
  • Logger
  • LoggerConfigurator
  • LoggerLike
  • Logging
  • LowPriorityMarkerContextImplicits
  • MarkerContext
  • MarkerContexts
  • Mode
  • NoHttpFiltersComponents
  • OptionalDevContext
  • OptionalSourceMapper
  • OptionalSourceMapperProvider
  • Play
  • UnexpectedException

trait ApplicationLoader extends AnyRef

Loads an application. This is responsible for instantiating an application given a context.

Application loaders are expected to instantiate all parts of an application, wiring everything together. They may be manually implemented, if compile time wiring is preferred, or core/third party implementations may be used, for example that provide a runtime dependency injection framework.

During dev mode, an ApplicationLoader will be instantiated once, and called once, each time the application is reloaded. In prod mode, the ApplicationLoader will be instantiated and called once when the application is started.

Out of the box Play provides a Guice module that defines a Java and Scala default implementation based on Guice, as well as various helpers like GuiceApplicationBuilder. This can be used simply by adding the "PlayImport.guice" dependency in build.sbt.

A custom application loader can be configured using the play.application.loader configuration property. Implementations must define a no-arg constructor.

Source
ApplicationLoader.scala
Linear Supertypes
AnyRef, Any
Known Subclasses
GuiceApplicationLoader
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Abstract Value Members

  1. abstract def load(context: Context): Application

    Load an application given the context.

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  8. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  9. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  14. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  15. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  16. def toString(): String
    Definition Classes
    AnyRef → Any
  17. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  18. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  19. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

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