Trait/Object

org.locationtech.geomesa.fs.storage.api

PartitionScheme

Related Docs: object PartitionScheme | package api

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trait PartitionScheme extends AnyRef

Scheme for partitioning features into various named partitions (e.g. file paths) on disk, for faster querying. Partition schemes do not have any persistent state, they only know how to map features and filters to partition names

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Abstract Value Members

  1. abstract def depth: Int

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    returns

    the max depth this partition scheme goes to

  2. abstract def getPartitionName(feature: SimpleFeature): String

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    Return the partition in which a SimpleFeature should be stored

    Return the partition in which a SimpleFeature should be stored

    feature

    simple feature

    returns

    partition name

Concrete Value Members

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

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  2. final def ##(): Int

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  8. def finalize(): Unit

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  9. final def getClass(): Class[_]

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  10. def getCoveringFilter(partition: String): Filter

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    Get a filter that will cover a partitions, i.e.

    Get a filter that will cover a partitions, i.e. the filter will return all features in the given partition and none from other partitions

    partition

    partition to cover

    returns

    filter

  11. def getIntersectingPartitions(filter: Filter): Option[Seq[String]]

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    Get partitions that intersect the given filter

    Get partitions that intersect the given filter

    If the filter does not constrain partitions at all, then an empty option will be returned. If the filter excludes all potential partitions, then an empty list will be returned

    filter

    filter

    returns

    list of intersecting filters

  12. def getSimplifiedFilters(filter: Filter, partition: Option[String] = None): Option[Seq[SimplifiedFilter]]

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    Return a list of modified filters and partitions.

    Return a list of modified filters and partitions. Each filter will have been simplified to remove any predicates that are implicitly true for the associated partitions

    If the filter does not constrain partitions at all, then an empty option will be returned, indicating all partitions must be searched. If the filter excludes all potential partitions, then an empty list of partitions will be returned

    Note that this operation is based solely on the partition scheme, so may return partitions that do not actually exist in a given storage instance

    filter

    filter

    partition

    query a single partition

    returns

    list of simplified filters and partitions

  13. def hashCode(): Int

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  18. def pattern: String

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    Indication of the directory structure, suitable for displaying to a user

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

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  20. def toString(): String

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  21. final def wait(): Unit

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

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