Trait

geotrellis.vectortile.protobuf

Value

Related Doc: package protobuf

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sealed trait Value extends Serializable

Feature metadata key/value Maps are completely untyped. All keys and values used by Features across a common parent Layer are stored in that parent. Raw Features themselves only store indices into the parent's key/value lists. So, for an example MultiPoint Feature of fire hydrant locations, its metadata could look like:

{ name: "Hydrants",
  colour: "red",
  model: 5
}

That's fine if interpreted as JSON, but bad as Scala, as it doesn't give us a clean Map[String, ConcreteTypeHere]. Furthermore, Features within the same Layer don't have to agree on the Value type for the same key:

{ name: "Stop lights",
  colour: 1,
  model: "ABC-123"
}

Nor, actually, do Layers have to agree on key sets for their Features. The sealed trait Value here and its extensions aim to provide some type safety in light of the situation described here.

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Abstract Value Members

  1. abstract def toProtobuf: internal.vector_tile.Tile.Value

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    Encode this Value back into a mid-level Protobuf object.

Concrete Value Members

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

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    AnyRef → Any
  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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    protected[java.lang]
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    @throws( ... )
  6. final def eq(arg0: AnyRef): Boolean

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  7. def equals(arg0: Any): Boolean

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  8. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]

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  10. def hashCode(): Int

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  11. final def isInstanceOf[T0]: Boolean

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

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  13. final def notify(): Unit

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  14. final def notifyAll(): Unit

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

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  16. def toString(): String

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  17. final def wait(): Unit

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    @throws( ... )
  18. final def wait(arg0: Long, arg1: Int): Unit

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

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Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

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