Examples of de.fuberlin.wiwiss.d2rq.algebra.RelationImpl

de.fuberlin.wiwiss.d2rq.algebra.RelationImpl

    Collection<Expression> softConditions = new HashSet<Expression>(projections.size());
    for (ProjectionSpec projection: projections) {
      softConditions.add(projection.notNullExpression(database, aliases));
    }
    
    return new RelationImpl(
        database,
        aliases, 
        this.condition, 
        Conjunction.create(softConditions),
        this.joinConditions,

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  private TripleRelation withURIPatternSubjectAndURIColumnObject;
  private URIMakerRuleChecker employeeChecker;
  private URIMakerRuleChecker foobarChecker;


  public void setUp() {
    Relation base = new RelationImpl(null, AliasMap.NO_ALIASES, 
        Expression.TRUE, Expression.TRUE, 
        Collections.<Join>emptySet(), Collections.<ProjectionSpec>emptySet(), 
        false, OrderSpec.NONE, Relation.NO_LIMIT, Relation.NO_LIMIT);
    this.withURIPatternSubject = new TripleRelation(base,
        new TypedNodeMaker(TypedNodeMaker.URI,

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    // The new relation is unique if it is joined only on unique node sets.
    // A node set is unique if it is constrained by only unique node makers.
    
    // In the meantime, copy the uniqueness from the relation if there's just one
    boolean isUnique = relations.size() == 1 && (relations.iterator().next()).isUnique();
    return new RelationImpl(connectedDB, joinedAliases, Conjunction.create(expressions), 
        Conjunction.create(softConditions),
        joins, projections, isUnique, orderSpecs, limit, limitInverse);
  }

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Related Classes of de.fuberlin.wiwiss.d2rq.algebra.RelationImpl

de.fuberlin.wiwiss.d2rq.engine.TripleRelationJoiner

de.fuberlin.wiwiss.d2rq.find.URIMakerRuleTest

de.fuberlin.wiwiss.d2rq.parser.RelationBuilder

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