/// <summary>Determines whether the specified object is equal to the current object.</summary>
/// <param name="operand">Type: <see cref="System.Object" />
/// The object to compare with the current object.</param>
/// <returns>Type: <see cref="System.Boolean" />
/// <b>true</b> if the specified object is equal to the current object; otherwise, <b>false</b>.</returns>
public override bool Equals(object operand)
{
if (Object.Equals(operand, null))
{
return(false);
}
if (operand.GetType() != typeof(IdentifierEntityAccessor))
{
return(false);
}
IdentifierEntityAccessor accessor = (IdentifierEntityAccessor)operand;
return((About != null ? About.Equals(accessor.About) : Object.Equals(accessor.About, null)) &&
(SourceExpression != null ? SourceExpression.Equals(accessor.SourceExpression) : Object.Equals(accessor.SourceExpression, null)) &&
(Source == accessor.Source) && (_entityAccessor.Equals(accessor._entityAccessor)));
}
/// <summary>Visit an identifier entity accessor.</summary>
/// <param name="entityAccessor">Identifier entity accessor to be visited.</param>
protected override void VisitIdentifierEntityAccessor(IdentifierEntityAccessor entityAccessor)
{
Call predicateBind = new Call(MethodNames.Bind);
predicateBind.Arguments.Add(new Alias(new Literal(Rdf.predicate), new Identifier(entityAccessor.About.Name + "_Predicate")));
Call objectBind = new Call(MethodNames.Bind);
objectBind.Arguments.Add(new Alias(new Literal(Rdf.@object), new Identifier(entityAccessor.About.Name + "_Object")));
_injectedComponents.Add(predicateBind);
_injectedComponents.Add(objectBind);
VisitStrongEntityAccessor(entityAccessor.EntityAccessor);
_injectedComponents.Clear();
}
/// <summary>Visit an identifier entity accessor.</summary> /// <param name="entityAccessor">Identifier entity accessor to be visited.</param> protected abstract void VisitIdentifierEntityAccessor(IdentifierEntityAccessor entityAccessor);
private void OverrideIdentifierSelector(StrongEntityAccessor entityAccessor)
{
IdentifierEntityAccessor identifierEntityAccessor = new IdentifierEntityAccessor(entityAccessor.About, entityAccessor);
int indexOf = -1;
if ((indexOf = _query.Elements.IndexOf(entityAccessor)) != -1)
{
_query.Elements.RemoveAt(indexOf);
_query.Elements.Insert(indexOf, identifierEntityAccessor);
}
_query.Select.Clear();
_query.Select.Add(identifierEntityAccessor);
_mainFromComponent = identifierEntityAccessor;
}