Package org.wikidata.wdtk.datamodel.interfaces

Interface Claim

All Known Implementing Classes:
ClaimImpl
public interface Claim
Interface for Wikidata claims. Claims consist of those parts of Wikibase Statements that express a claim about a subject entity, such as the claim that Berlin has 3 million inhabitants. Additional information, such as references and ranks, are not part of the claim.
Author:
Markus Kroetzsch

  • Method Summary

    Modifier and Type
    Method
    Description
    Iterator<Snak>
    getAllQualifiers()
    Returns an iterator over all qualifiers, without considering qualifier groups.
    Snak
    getMainSnak()
    Main Snak of the statement.
    List<SnakGroup>
    getQualifiers()
    Groups of auxiliary Snaks, also known as qualifiers, that provide additional context information for this claim.
    EntityIdValue
    getSubject()
    The subject that the claim refers to, e.g., the id of "Berlin".
    Value
    getValue()
    Convenience method to get the value of the claim's main snak, or null if there is none.

  • Method Details

    • getSubject

      EntityIdValue getSubject()
      The subject that the claim refers to, e.g., the id of "Berlin".
      Returns:
      EntityId of the subject

    • getMainSnak

      Snak getMainSnak()
      Main Snak of the statement. This Snak refers directly to the subject, e.g., the ValueSnak "Population: 3000000".
      Returns:
      the main snak

    • getQualifiers

      List<SnakGroup> getQualifiers()
      Groups of auxiliary Snaks, also known as qualifiers, that provide additional context information for this claim. For example, "as of: 2014" might be a temporal context given for a claim that provides a population number. The snaks are grouped by the property that they use.
      Returns:
      list of snak groups

    • getAllQualifiers

      Iterator<Snak> getAllQualifiers()
      Returns an iterator over all qualifiers, without considering qualifier groups. The relative order of qualifiers is preserved.
      Returns:
      iterator over all qualifier snaks

    • getValue

      Value getValue()
      Convenience method to get the value of the claim's main snak, or null if there is none.
      Returns:
      main value of the claim, or null