com.twitter.cassovary.util.io

GraphReader

trait GraphReader[T] extends AnyRef

Trait that classes should implement to read in graphs that nodes have ids of type T.

The reader class is required to implement iteratorSeq, a method which returns a sequence of functions that themselves return an Iterator over NodeIdEdgesMaxId (see its type signature below as well).

It is also required to provide a nodeNumberer[T].

NodeIdEdgesMaxId is a case class defined in ArrayBasedDirectedGraph that stores 1) the id of a node, 2) the ids of its neighbors, and 3) the maximum id of itself and its neighbors.

One useful reference implementation is AdjacencyListGraphReader.

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AnyRef, Any
Known Subclasses
AdjacencyListGraphReader, GraphReaderFromDirectory, ListOfEdgesGraphReader
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Abstract Value Members

  1. abstract def iteratorSeq: Seq[() ⇒ Iterator[NodeIdEdgesMaxId]]

    Should return a sequence of iterators over NodeIdEdgesMaxId objects

  2. abstract def nodeNumberer: NodeNumberer[T]

    Define node numberer

Concrete Value Members

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

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

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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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. final def eq(arg0: AnyRef): Boolean

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  9. def equals(arg0: Any): Boolean

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  10. def executorService: ExecutorService

    Override to use multiple threads

  11. def finalize(): Unit

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

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  13. def hashCode(): Int

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  14. final def isInstanceOf[T0]: Boolean

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

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  16. final def notify(): Unit

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  17. final def notifyAll(): Unit

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  18. def parallelismLimit: Int

  19. def storedGraphDir: StoredGraphDir

    Override to modify the graph's stored direction

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

    Definition Classes
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  21. def toArrayBasedDirectedGraph(): ArrayBasedDirectedGraph

    Create an ArrayBasedDirectedGraph

  22. def toSharedArrayBasedDirectedGraph(numShards: Int = 128): SharedArrayBasedDirectedGraph

    Create a SharedArrayBasedDirectedGraph

    Create a SharedArrayBasedDirectedGraph

    numShards

    Number of shards to split the in-memory array into 128 is an arbitrary default

  23. def toString(): String

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  24. final def wait(): Unit

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

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

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