David M. Lee leedm777
leedm777
/ traits.scala
Created
March 13, 2012 13:42
— forked from jbrechtel/traits.scala
Traits in Scala
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| trait Searchable { | |
| def search(query: SearchQuery): Seq[SearchResults] | |
| } | |
| trait PaginationWithNominalType { | |
| this: Searchable => | |
| def page(query: SearchQuery, pageSize: Int, pageNum: Int) = { | |
| search(query).grouped(pageSize).toList(pageNum) | |
| } | |
| } |
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| //create a map | |
| val cars = Map("james" -> "BMW", "ike" -> "Infiniti", "stephen" -> "Buick") | |
| //create a map from an Array | |
| //Scala does not provide a convenience method to do this... :( | |
| val carArray = Array("james", "BMW", "ike", "Infiniti", "stephen", "Buick") | |
| val cars = carArray.grouped(2).toList.map(c => (c.head,c.last)).toMap | |
| //mapping over a map | |
| //transform all string keys to symbols (interned strings) |