c

geotrellis.doc.examples.spark

ShardingKeyIndexRegistrator

class ShardingKeyIndexRegistrator extends KeyIndexRegistrator

Register ShardingKeyIndex's Codecs with the central GeoTrellis KeyIndex JsonFormat registry.

Q: Why do we need to do this?

A: The KeyIndex trait is critical to Tile layer IO. However, it is always used generically, without any class depending on KeyIndex's subtypes directly. This is advantageous, as the user never needs to externally keep track of what index they ingested a layer with. They can read and update a layer with less of a mental burden. That said, inventing new KeyIndex subclasses becomes labourous. In this way, we (the GeoTrellis authors) have accepted the burden of complexity to the benefit of our users.

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KeyIndexRegistrator, AnyRef, Any
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Instance Constructors

  1. new ShardingKeyIndexRegistrator()

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
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  4. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
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  6. final def eq(arg0: AnyRef): Boolean
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  7. def equals(arg0: Any): Boolean
    Definition Classes
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  8. def finalize(): Unit
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    protected[lang]
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    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]
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    @native()
  10. def hashCode(): Int
    Definition Classes
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    @native()
  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
    Definition Classes
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    @native()
  14. final def notifyAll(): Unit
    Definition Classes
    AnyRef
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    @native()
  15. def register(keyIndexRegistry: KeyIndexRegistry): Unit

    Necessary to extend KeyIndexRegistrator.

    Necessary to extend KeyIndexRegistrator. This tells the central registry about each possible JsonFormat.

    Definition Classes
    ShardingKeyIndexRegistrator → KeyIndexRegistrator
  16. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  17. def toString(): String
    Definition Classes
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  18. final def wait(): Unit
    Definition Classes
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    @throws( ... )
  19. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
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    @throws( ... )
  20. final def wait(arg0: Long): Unit
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Inherited from KeyIndexRegistrator

Inherited from AnyRef

Inherited from Any

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