private void AddChildGraphPattern(Action <IGraphPatternBuilder> buildGraphPattern, GraphPatternType graphPatternType, IToken graphSpecifier)
{
var childBuilder = new GraphPatternBuilder(graphPatternType, graphSpecifier);
buildGraphPattern(childBuilder);
_childGraphPatternBuilders.Add(childBuilder);
}
public void CanBuildUnionWithGraphPatternBuilders()
{
// Define two pattern builders which will be used to generate triple patterns for a UNION expression.
GraphPatternBuilder patternBuilder0 = new GraphPatternBuilder();
GraphPatternBuilder patternBuilder1 = new GraphPatternBuilder();
IQueryBuilder queryBuilder0 = QueryBuilder
.Ask()
.Union(patternBuilder0, patternBuilder1);
// Add some triple patterns after the UNION was added to the query.
patternBuilder0.Where(p => p.Subject("s0").Predicate("p0").ObjectLiteral(0));
patternBuilder1.Where(p => p.Subject("s1").Predicate("p1").ObjectLiteral(1));
SparqlQuery q0 = queryBuilder0.BuildQuery();
Assert.Single(q0.RootGraphPattern.ChildGraphPatterns);
Assert.True(q0.RootGraphPattern.ChildGraphPatterns.First().IsUnion);
Assert.Equal(2, q0.RootGraphPattern.ChildGraphPatterns.First().ChildGraphPatterns.Count());
// Now add other triples to the query after the query was already build.
patternBuilder1.Where(p => p.Subject("s1").Predicate("p2").ObjectLiteral(2));
SparqlQuery q1 = queryBuilder0.BuildQuery();
Assert.Single(q1.RootGraphPattern.ChildGraphPatterns);
Assert.True(q1.RootGraphPattern.ChildGraphPatterns.First().IsUnion);
Assert.Equal(2, q1.RootGraphPattern.ChildGraphPatterns.First().ChildGraphPatterns.Count());
Assert.Contains(q1.RootGraphPattern.ChildGraphPatterns.First().ChildGraphPatterns, p => p.ToString().Contains("p2"));
}
private void AddChildGraphPattern(Action <IGraphPatternBuilder> buildGraphPattern, GraphPatternType graphPatternType)
{
var childBuilder = new GraphPatternBuilder(graphPatternType);
buildGraphPattern(childBuilder);
_childGraphPatternBuilders.Add(childBuilder);
}
/// <inheritdoc />
public IGraphPatternBuilder Group(Action <IGraphPatternBuilder> buildGraphPattern)
{
GraphPatternBuilder groupBuilder = new GraphPatternBuilder();
buildGraphPattern(groupBuilder);
_childGraphPatternBuilders.Add(groupBuilder);
return(this);
}
/// <inheritdoc />
public IGraphPatternBuilder Group(GraphPatternBuilder groupBuilder)
{
if (!_childGraphPatternBuilders.Contains(groupBuilder))
{
_childGraphPatternBuilders.Add(groupBuilder);
}
return(this);
}
/// <summary>
/// Creates a call of the EXISTS function
/// </summary>
/// <param name="eb"></param>
/// <param name="buildExistsPattern">a function, which will create the graph pattern parameter</param>
public static BooleanExpression Exists(this ExpressionBuilder eb, Action <IGraphPatternBuilder> buildExistsPattern)
{
GraphPatternBuilder builder = new GraphPatternBuilder();
buildExistsPattern(builder);
var existsFunction = new ExistsFunction(builder.BuildGraphPattern(eb.Prefixes), true);
return(new BooleanExpression(existsFunction));
}
/// <inheritdoc />
public IGraphPatternBuilder Child(IQueryBuilder queryBuilder)
{
SparqlQuery subquery = queryBuilder.BuildQuery();
GraphPatternBuilder childBuilder = new GraphPatternBuilder();
childBuilder.Where(new SubQueryPattern(subquery));
_childGraphPatternBuilders.Add(childBuilder);
return(this);
}
public IGraphPatternBuilder Union(Action <IGraphPatternBuilder> buildGraphPattern)
{
GraphPatternBuilder union;
if (_graphPatternType == GraphPatternType.Union)
{
union = this;
}
else
{
union = new GraphPatternBuilder(GraphPatternType.Union);
union._childGraphPatternBuilders.Add(this);
}
union.AddChildGraphPattern(buildGraphPattern, GraphPatternType.Normal);
return(union);
}
/// <inheritdoc />
public IGraphPatternBuilder Union(Action <IGraphPatternBuilder> firstGraphPattern, params Action <IGraphPatternBuilder>[] unionedGraphPatternBuilders)
{
if (unionedGraphPatternBuilders == null || unionedGraphPatternBuilders.Length == 0)
{
return(Child(firstGraphPattern));
}
var union = new GraphPatternBuilder(GraphPatternType.Union);
union.AddChildGraphPattern(firstGraphPattern, GraphPatternType.Normal);
foreach (var builder in unionedGraphPatternBuilders)
{
union.AddChildGraphPattern(builder, GraphPatternType.Normal);
}
_childGraphPatternBuilders.Add(union);
return(this);
}
/// <inheritdoc />
public IGraphPatternBuilder Union(GraphPatternBuilder firstGraphPattern, params GraphPatternBuilder[] unionedGraphPatternBuilders)
{
if (unionedGraphPatternBuilders == null || unionedGraphPatternBuilders.Length == 0)
{
return(Child(firstGraphPattern));
}
var union = new GraphPatternBuilder(GraphPatternType.Union);
union.Child(firstGraphPattern);
foreach (var builder in unionedGraphPatternBuilders)
{
union.Child(builder);
}
_childGraphPatternBuilders.Add(union);
return(this);
}
/// <inheritdoc />
public IGraphPatternBuilder Child(GraphPatternBuilder childBuilder)
{
_childGraphPatternBuilders.Add(childBuilder);
return(this);
}
internal BindAssignmentVariableNamePart(GraphPatternBuilder graphPatternBuilder, Func <ExpressionBuilder, SparqlExpression> buildAssignmentExpression)
: base(buildAssignmentExpression)
{
_graphPatternBuilder = graphPatternBuilder;
}
/// <summary>
/// See <see cref="IGraphPatternBuilder.Union(GraphPatternBuilder,VDS.RDF.Query.Builder.GraphPatternBuilder[])"/>.
/// </summary>
public static IQueryBuilder Union(this IQueryBuilder queryBuilder, GraphPatternBuilder firstGraphPattern, params GraphPatternBuilder[] otherGraphPatterns)
{
queryBuilder.Root.Union(firstGraphPattern, otherGraphPatterns);
return(queryBuilder);
}
internal ConstructBuilder(Action <IDescribeGraphPatternBuilder> buildPattern) : base(SparqlQueryType.Construct)
{
_builder = new GraphPatternBuilder();
buildPattern(_builder);
}
public GraphPatternBuilderTests()
{
_namespaceMapper = new Mock <INamespaceMapper>(MockBehavior.Strict);
_builder = new GraphPatternBuilder();
}
internal DescribeGraphPatternBuilder(GraphPatternBuilder builder)
{
_builder = builder;
}