Add support for NotAny join operator in Query Expression

[Copilot]

This PR implements support for the NotAny join operator in XrmMockup Query Expression, addressing the limitation where only LeftOuter join was previously supported.

What was implemented

The NotAny join operator provides anti-join functionality, returning records from the primary entity that do NOT have matching records in the linked entity.

Key changes:

1. FetchXML parsing support - Added "notany" link-type parsing in XmlHandling.cs:

   <link-entity name='lead' from='parentcontactid' to='contactid' link-type='notany' />

2. Query Expression support - Added JoinOperator.NotAny handling in RetrieveMultipleRequestHandler.cs:

   var linkEntity = new LinkEntity() {
       JoinOperator = JoinOperator.NotAny,
       // ... other properties
   };

3. Anti-join logic - Implemented proper NotAny behavior:

   • Returns parent entity when no matching linked entities are found
   • Returns nothing when matching linked entities are found

Example usage

// Find contacts that do NOT have any associated leads
var query = new QueryExpression("contact") {
    ColumnSet = new ColumnSet("contactid", "lastname")
};

query.LinkEntities.Add(new LinkEntity() {
    LinkToEntityName = "lead",
    LinkToAttributeName = "parentcontactid", 
    LinkFromEntityName = "contact",
    LinkFromAttributeName = "contactid",
    JoinOperator = JoinOperator.NotAny
});

var contactsWithoutLeads = orgService.RetrieveMultiple(query);

Testing

Added comprehensive test coverage including both QueryExpression and FetchXML scenarios. The implementation follows the same patterns as existing join operators and maintains full backward compatibility.

Fixes #280.

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[KristianKlodeD]

Remove the files committed with only a path to another file with the same name

dismissed