Package org.aksw.faraday_cage.engine

Class ValidatableParameterMap

java.lang.Object
org.aksw.faraday_cage.engine.ValidatableParameterMap
public class ValidatableParameterMap extends Object
A ValidatableParameterMap serves as registry of parameters that can be used to configure a ValidatableParameterMap.

A ParameterMap holds a list of Property instances upon its initialization, therefore acting as a registry of allowed Propertys.
Furthermore, a ValidatableParameterMap supports setting values of its parameters either directly or automatically.
Calling init()} on a given ValidatableParameterMap will change its state to initialized and prevent further modification of its values, effectively making it immutable. It is mandatory to call init() before obtaining values from a ValidatableParameterMap.

  • Method Details

    • emptyInstance

      public static ValidatableParameterMap emptyInstance()

    • builder

      public static ValidatableParameterMap.Builder builder()
      Obtain a builder instance
      Returns:
      a fresh builder instance

    • populate

      public ValidatableParameterMap populate​(Resource root)
      Populate the ValidatableParameterMap with data taken from the Model attached to the given Resource.
      Parameters:
      root - this Resource needs to be backed by a Model

    • add

      public ValidatableParameterMap add​(StmtIterator it)
      Add all remaining Statements from a given StmtIterator to this ValidatableParameterMap

    • add

      public ValidatableParameterMap add​(Property p, RDFNode node)
      Add a Statement to this ValidatableParameterMap by specifying its predicate and object. If the object is not a literal, its subgraph is also added to the Model backing this ValidatableParameterMap by depth-first search. Infinite loops from cyclical subgraphs are prevented by maintaining a set of visited resources.

    • init

      public ValidatableParameterMap init()
      Initializes this ValidatableParameterMap. Initializing effectively disables all writing operations (attempting to write will result in exceptions) and enables all reading operations.

    • listPropertyObjects

      public Stream<RDFNode> listPropertyObjects​(Property p)
      Get a stream of objects for the given property.

    • getOptional

      public Optional<RDFNode> getOptional​(Property p)
      Get the first object for a given property as an Optional.

    • get

      public RDFNode get​(Property p)
      Get the first object for a given property as an Optional.

    • parametrize

      public Model parametrize​(Resource exNode)
      Apply the parameters stored in this ValidatableParameterMap to the given Resource representing a Parameterized.
      Returns:
      the parameter graph for the given Resource

    • getValidationModel

      public Model getValidationModel()

    • createResource

      public Resource createResource()

    • createResource

      public Resource createResource​(String url)

    • createLiteral

      public Literal createLiteral​(String s)

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals​(Object o)
      Overrides:
      equals in class Object