https://github.com/johnynek/maniclass

Generate unique classes for each unique scala type.
https://github.com/johnynek/maniclass

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Generate unique classes for each unique scala type.

• Host: GitHub
• URL: https://github.com/johnynek/maniclass
• Owner: johnynek
• Created: 2013-02-17T00:42:59.000Z (almost 12 years ago)
• Default Branch: master
• Last Pushed: 2013-02-17T00:50:14.000Z (almost 12 years ago)
• Last Synced: 2024-10-13T13:28:22.130Z (2 months ago)
• Language: Scala
• Size: 113 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
maniclass

=========

Generate unique classes for each unique scala type.

An example goes a long ways:

```scala

scala> import org.bykn.maniclass.Maniclass

import org.bykn.maniclass.Maniclass

scala> val mc = Maniclass()

mc: org.bykn.maniclass.Maniclass = org.bykn.maniclass.Maniclass@4658ef71

scala> mc.wrap(List(1,2,3,4))

res0: org.bykn.maniclass.Gettable = org.bykn.maniclass.Gettable0@12dbd81

scala> res0.get

res1: java.lang.Object = List(1, 2, 3, 4)

scala> mc.unwrap[List[Int]](res0)

res2: Option[List[Int]] = Some(List(1, 2, 3, 4))

scala> mc.unwrap[List[Any]](res0)

res3: Option[List[Any]] = Some(List(1, 2, 3, 4))

scala> mc.unwrap[List[String]](res0)

res4: Option[List[String]] = None

```

The motivation here is to deal with Hadoop serialization which switches on Class. This allows us to

wrap each object with an instance of `org.bykn.maniclass.Gettable` whose getName is sufficient to

lookup the original Manifest. This should give more efficient type-safe serialization of scala

objects.