RDF structures

Author: LorenzBuehmann

sansa-inference-common/src/main/scala/net/sansa_stack/inference/data/Jena.scala

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+package net.sansa_stack.inference.data
+
+import org.apache.jena.graph.{ Graph => JenaGraph, Node => JenaNode, Triple => JenaTriple, _ }
+
+/**
+  * Defines the types related to the RDF datamodel in the Apache Jena framework.
+  *
+  * This class is inspired by the Banana-RDF project.
+  *
+  * @author Lorenz Buehmann
+  */
+trait Jena extends RDF {
+  type Graph = JenaGraph
+  type Triple = JenaTriple
+  type Node = JenaNode
+  type URI = Node_URI
+  type BNode = Node_Blank
+  type Literal = Node_Literal
+  type Lang = String
+}

sansa-inference-common/src/main/scala/net/sansa_stack/inference/data/RDF.scala

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+package net.sansa_stack.inference.data
+
+/**
+  * Defines the types related to the RDF datamodel.
+  *
+  * This class is inspired by the Banana-RDF project.
+
+  * @author Lorenz Buehmann
+  */
+trait RDF {
+
+  /**
+    * An RDF graph
+    */
+  type Graph
+  /**
+    * An RDF triple
+    */
+  type Triple
+  /**
+    * An RDF node
+    */
+  type Node
+
+  type URI <: Node
+  /**
+    * An RDF blank node
+    */
+  type BNode <: Node
+  /**
+    * An RDF literal
+    */
+  type Literal <: Node
+  /**
+    * The language tag used in RDF literals
+    */
+  type Lang
+
+}

sansa-inference-common/src/main/scala/net/sansa_stack/inference/data/SimpleRDF.scala

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+package net.sansa_stack.inference.data
+
+/**
+  * @author Lorenz Buehmann
+  */
+class SimpleRDF extends RDF {
+    type Triple = RDFTriple
+    type Node = String
+    type URI = String
+    type BNode = String
+    type Literal = String
+    type Lang = String
+}

sansa-inference-common/src/main/scala/net/sansa_stack/inference/data/TripleOps.scala

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+package net.sansa_stack.inference.data
+
+/**
+  * @author Lorenz Buehmann
+  */
+trait TripleOps[Rdf <: RDF] {
+
+  /**
+    * @return the subject
+    */
+  def s: Rdf#Node
+  /**
+    * @return the predicate
+    */
+  def p: Rdf#URI
+  /**
+    * @return the object
+    */
+  def o: Rdf#Node
+
+}