Packages

package root

Definition Classes: root

package play

Play framework.

Play

http://www.playframework.com

Definition Classes: root

package api

Contains the public API for Scala developers.

Access the current Play application

import play.api.Play.current

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.

Definition Classes: api

package controllers

Definition Classes: api

package data

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.

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.

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 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 libs

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.

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.

Definition Classes: api

Application

ApplicationLoader

BuiltInComponents

BuiltInComponentsFromContext

ConfigLoader

Configuration

DefaultApplication

DefaultMarkerContext

Environment

Logger

LoggerConfigurator

LoggerLike

LowPriorityMarkerContextImplicits

MarkerContext

MarkerContexts

Mode

NoHttpFiltersComponents

OptionalSourceMapper

Play

UnexpectedException

play.api

Application

Companion trait Application

object Application

Source: Application.scala

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def hashCode(): Int

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@native()
def instanceCache[T](implicit arg0: ClassTag[T]): (Application) ⇒ T
Creates a function that caches results of calls to app.injector.instanceOf[T].
Creates a function that caches results of calls to app.injector.instanceOf[T]. The cache speeds up calls when called with the same Application each time, which is a big benefit in production. It still works properly if called with a different Application each time, such as when running unit tests, but it will run more slowly.
Since values are cached, it's important that this is only used for singleton values.
This method avoids synchronization so it's possible that the injector might be called more than once for a single instance if this method is called from different threads at the same time.
The cache uses a SoftReference to both the Application and the returned instance so it will not cause memory leaks. Unlike WeakHashMap it doesn't use a ReferenceQueue, so values will still be cleaned even if the ReferenceQueue is never activated.
final def isInstanceOf[T0]: Boolean

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final def notify(): Unit

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final def synchronized[T0](arg0: ⇒ T0): T0

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@throws( ... )
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Packages

Play

Access the current Play application

Read configuration

Use the logger

Define a Plugin

Create adhoc applications (for testing)

Application

Companion trait Application

object Application

Value Members

Inherited from AnyRef

Inherited from Any

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Packages

Play

Access the current Play application

Read configuration

Use the logger

Define a Plugin

Create adhoc applications (for testing)

Application 

Companion trait Application

object Application

Value Members

Inherited from AnyRef

Inherited from Any

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Application