Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p><a href="http://jackson.codehaus.org/" rel="noreferrer">Jackson</a> is a Java library to process JSON fast. The Jerkson project wraps Jackson, but appears to be abandoned. I've switched to Jackson's <a href="https://github.com/FasterXML/jackson-module-scala" rel="noreferrer">Scala Module</a> for serialization and deserialization to native Scala data structures.</p> <p>To get it, include the following in your <code>build.sbt</code>:</p> <pre><code>libraryDependencies ++= Seq( "com.fasterxml.jackson.module" %% "jackson-module-scala" % "2.1.3", ... ) </code></pre> <p>Then your examples will work verbatim with the following Jackson wrapper (I extracted it from jackson-module-scala test files):</p> <pre><code>import java.lang.reflect.{Type, ParameterizedType} import com.fasterxml.jackson.databind.ObjectMapper import com.fasterxml.jackson.module.scala.DefaultScalaModule import com.fasterxml.jackson.annotation.JsonProperty; import com.fasterxml.jackson.core.`type`.TypeReference; object JacksonWrapper { val mapper = new ObjectMapper() mapper.registerModule(DefaultScalaModule) def serialize(value: Any): String = { import java.io.StringWriter val writer = new StringWriter() mapper.writeValue(writer, value) writer.toString } def deserialize[T: Manifest](value: String) : T = mapper.readValue(value, typeReference[T]) private [this] def typeReference[T: Manifest] = new TypeReference[T] { override def getType = typeFromManifest(manifest[T]) } private [this] def typeFromManifest(m: Manifest[_]): Type = { if (m.typeArguments.isEmpty) { m.erasure } else new ParameterizedType { def getRawType = m.erasure def getActualTypeArguments = m.typeArguments.map(typeFromManifest).toArray def getOwnerType = null } } } </code></pre> <p>Other Scala 2.10 JSON options include Twitter's <a href="https://github.com/stevej/scala-json" rel="noreferrer">scala-json</a> based on the Programming Scala book--it's simple, at the cost of performance. There is also <a href="https://github.com/spray/spray-json" rel="noreferrer">spray-json</a>, which uses <a href="https://github.com/sirthias/parboiled/wiki" rel="noreferrer">parboiled</a> for parsing. Finally, <a href="http://mandubian.com/2012/11/11/JSON-inception/" rel="noreferrer">Play's JSON handling</a> looks nice, but it does not easily decouple from the Play project.</p>
    singulars
    1. This table or related slice is empty.
    1. POScala 2.10 + Json serialization and deserialization
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USKipton Barros
    1. USKipton Barros
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COJackson scala module isn't good for Enumerations: http://stackoverflow.com/questions/15887785/jackson-scala-module-serialize-enumeration-fails
      singulars
      1. PO
      1. USSebastien Lorber
    2. COThis might be fixed in the nightly build: https://github.com/FasterXML/jackson-module-scala/wiki/Enumerations
      singulars
      1. PO
      1. USKipton Barros
    3. CO`erasure` seems deprecated
      singulars
      1. PO
      1. USMermoz
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload