Package

com.rallyhealth.weejson.v1

play

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package play

Visibility

Public
All

Type Members

class PlayJson extends AstTransformer[JsValue]
class UnorderedPlayJson extends PlayJson

Uses ~0.6x of the heap of PlayJson in exchange for undefined order of JsObject keys.
Uses ~0.6x of the heap of PlayJson in exchange for undefined order of JsObject keys. Ideal for
```
jsValue.as[T]
```
where order is irrelevant.
Heap usage for a particularly large JSON file captured from the wild:
- 814 MB: Array[Byte]
- 5,629 MB: play.Json.parse()
- 5,243 MB: FromJson().transform(PlayJson) (java.util.LinkedHashMap initialCapacity=2)
- 3,355 MB: FromJson().transform(UnorderedPlayJson) (Map1-4 + TreeMap)
- 3,107 MB: FromJson().transform(UnorderedPlayJson) (jsObjectEmpty + Map1-4 + TreeMap)
jsValue.as[T] }}}
Heap usage for a particularly large JSON file captured from the wild:
- 814 MB: Array[Byte]
- 5,629 MB: play.Json.parse()
- 5,243 MB: FromJson().transform(PlayJson) (java.util.LinkedHashMap initialCapacity=2)
- 3,355 MB: FromJson().transform(UnorderedPlayJson) (Map1-4 + TreeMap)
- 3,107 MB: FromJson().transform(UnorderedPlayJson) (jsObjectEmpty + Map1-4 + TreeMap)

Value Members

object JsValueSingletons

Shared values to reduce memory usage.
object PlayJson extends PlayJson
object PlayJsonImplicits

Convenience shims back to inefficient play-json formats.
Convenience shims back to inefficient play-json formats.
weePickle FromTo macros are more performant than using play-json Formats. play-json always requires going through an intermediate heavyweight AST: - JsValue boxes every type. Extra allocations. - JsObject is full of hash maps which are less efficient than struct-like classes (both cpu and memory).
object UnorderedPlayJson extends UnorderedPlayJson

Ungrouped