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• rogue-core_2.9.1
• 3.0.0-beta15
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• package.scala

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com.foursquare.rogue.package.scala Maven / Gradle / Ivy

// Copyright 2011 Foursquare Labs Inc. All Rights Reserved.

package com.foursquare

package object rogue {

  type InitialState = Unordered with Unselected with Unlimited with Unskipped with HasNoOrClause with ShardKeyNotSpecified
  type OrderedState = Ordered with Unselected with Unlimited with Unskipped with HasNoOrClause with ShardKeyNotSpecified

  type SimpleQuery[M] = Query[M, M, InitialState]
  type OrderedQuery[M] = Query[M, M, OrderedState]

  trait Sharded

  trait ShardKey[V] {
    def name: String
    def eqs(v: V) = new EqClause(this.name, v) with ShardKeyClause
    def in[L <% Traversable[V]](vs: L) = new InQueryClause(this.name, QueryHelpers.validatedList(vs.toSet)) with ShardKeyClause
  }

  /**
   * Iteratee helper classes
   * @tparam S state type
   */
  object Iter {
    sealed trait Command[S] {
      def state: S
    }
    case class Continue[S](state: S) extends Command[S]
    case class Return[S](state: S) extends Command[S]

    sealed trait Event[+R]
    case class Item[R](r: R) extends Event[R]
    case class Error(e: Exception) extends Event[Nothing]
    case object EOF extends Event[Nothing]
  }

}