Trait

com.lightbend.lagom.scaladsl.server

RequiresLagomServicePort

Related Doc: package server

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trait RequiresLagomServicePort extends AnyRef

When using dynamic port allocation, a circular dependency may exist if the application needs to know what port it's running on, since the port won't be know until after the server has bound to the listening port (the OS will select a free port at bind time), but we can't bind the server to the listening port until we have an application to service incoming requests.

This trait allows that circular dependency to be resolved, by making the port available as a future, and allowing it to be provided after the application has been created using the RequiresLagomServicePort.provideLagomServicePort() method.

This is primarily useful for testing, where dynamic port allocation is often used.

Source
LagomApplicationLoader.scala
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  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. def +(other: String): String

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    Implicit information
    This member is added by an implicit conversion from RequiresLagomServicePort to any2stringadd[RequiresLagomServicePort] performed by method any2stringadd in scala.Predef.
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  4. def ->[B](y: B): (RequiresLagomServicePort, B)

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    This member is added by an implicit conversion from RequiresLagomServicePort to ArrowAssoc[RequiresLagomServicePort] performed by method ArrowAssoc in scala.Predef.
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  5. final def ==(arg0: Any): Boolean

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  6. final def asInstanceOf[T0]: T0

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  7. def clone(): AnyRef

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  8. def ensuring(cond: (RequiresLagomServicePort) ⇒ Boolean, msg: ⇒ Any): RequiresLagomServicePort

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    This member is added by an implicit conversion from RequiresLagomServicePort to Ensuring[RequiresLagomServicePort] performed by method Ensuring in scala.Predef.
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  9. def ensuring(cond: (RequiresLagomServicePort) ⇒ Boolean): RequiresLagomServicePort

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    This member is added by an implicit conversion from RequiresLagomServicePort to Ensuring[RequiresLagomServicePort] performed by method Ensuring in scala.Predef.
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  10. def ensuring(cond: Boolean, msg: ⇒ Any): RequiresLagomServicePort

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    Implicit information
    This member is added by an implicit conversion from RequiresLagomServicePort to Ensuring[RequiresLagomServicePort] performed by method Ensuring in scala.Predef.
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    Ensuring
  11. def ensuring(cond: Boolean): RequiresLagomServicePort

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    This member is added by an implicit conversion from RequiresLagomServicePort to Ensuring[RequiresLagomServicePort] performed by method Ensuring in scala.Predef.
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  12. final def eq(arg0: AnyRef): Boolean

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  13. def equals(arg0: Any): Boolean

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  14. def finalize(): Unit

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  15. def formatted(fmtstr: String): String

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    This member is added by an implicit conversion from RequiresLagomServicePort to StringFormat[RequiresLagomServicePort] performed by method StringFormat in scala.Predef.
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  16. final def getClass(): Class[_]

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  17. def hashCode(): Int

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  18. final def isInstanceOf[T0]: Boolean

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  19. final val lagomServicePort: Future[Int]

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    The service port.

    The service port. This will be redeemed when provideLagomServicePort() is invoked.

    Anything that needs to know what port the app is running on can attach callbacks to this to handle it.

  20. final def ne(arg0: AnyRef): Boolean

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  21. final def notify(): Unit

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  22. final def notifyAll(): Unit

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  23. final def provideLagomServicePort(port: Int): Unit

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    Provide the Lagom service port.

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

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  25. def toString(): String

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  26. final def wait(): Unit

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  27. final def wait(arg0: Long, arg1: Int): Unit

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  28. final def wait(arg0: Long): Unit

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  29. def [B](y: B): (RequiresLagomServicePort, B)

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    Implicit information
    This member is added by an implicit conversion from RequiresLagomServicePort to ArrowAssoc[RequiresLagomServicePort] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from RequiresLagomServicePort to any2stringadd[RequiresLagomServicePort]

Inherited by implicit conversion StringFormat from RequiresLagomServicePort to StringFormat[RequiresLagomServicePort]

Inherited by implicit conversion Ensuring from RequiresLagomServicePort to Ensuring[RequiresLagomServicePort]

Inherited by implicit conversion ArrowAssoc from RequiresLagomServicePort to ArrowAssoc[RequiresLagomServicePort]

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