StatusCode QueryOperatorImpl::LoadCollectionQuery(QueryNodeImpl* target)
{
#if 0
ClearMCATScratch();
m_selval[DATA_GRP_NAME] = 1;
INode* ptr = target;
IMetadataNode* ptr_meta;
int count = 0;
StatusCode status;
while(WINI_QUERY == ptr->GetType())
{
ptr_meta = (IMetadataNode*)ptr->GetChild(0);
status = LoadCollectionQuery2(ptr_meta, count);
if(!status.isOk())
break;
ptr = ptr->GetParent();
if(NULL == ptr)
break;
}
return status;
#endif
return WINI_ERROR;
}
StatusCode QueryOperatorImpl::Delete(IQueryNode* query)
{
if(NULL == query)
return WINI_ERROR_INVALID_PARAMETER;
INode* parent = query->GetParent();
if(parent)
{
//parent can be binding of a root query or parent of a nested query
//in case of root query, the collection, resource, etc, does not know that
//a query references it as its parent.
//remove query from parent query
if(WINI_QUERY == parent->GetType())
((QueryNodeImpl*)parent)->RemoveChild(query);
};
//can also be referenced in session if it is a root query in the list
//should call on session to remove from its list as well.
//cam also be in m_nodes check there as well
delete query; //this should delete all child query nodes but not other nodes
return WINI_OK;
}
StatusCode QueryOperatorImpl::Remove(IMetadataNode* expression)
{
if(NULL == expression)
return WINI_ERROR_INVALID_PARAMETER;
INode* parent = expression->GetParent();
StatusCode status = WINI_OK;
if(parent)
{
switch(parent->GetType())
{
case WINI_QUERY: //is root expression. delete from query, query is now invalid
status = ((QueryNodeImpl*)parent)->RemoveChild(expression);
break;
case WINI_METADATA: //delete from metadata, metadata must be fixed
status = ((MetadataNodeImpl*)parent)->DeleteChild2(expression);
break;
default: //do not remove nodes of collections, datasets, etc.
return WINI_ERROR;
}
//remove query from parent
};
if(status.isOk())
delete expression;
return status;
}
StatusCode QueryOperatorImpl::Fetch(QueryNodeImpl* target)
{
return WINI_ERROR;
#if 0
//the equal thing will only ever return either 1 or 0 so it should have special instance
//also because when you subtract the collection name from itself it's null
m_binding = NULL; //reset in case the same operator is used to perform different queries
if(NULL == target)
return WINI_ERROR;
INode* blah = target->GetParent();
while(NULL != blah)
{
if(WINI_QUERY == blah->GetType())
{
blah = blah->GetParent();
}else
{
m_binding = blah;
blah = NULL;
}
}
if(NULL == m_binding)
return WINI_ERROR;
if(WINI_COLLECTION != m_binding->GetType())
return WINI_ERROR;
StatusCode status = FetchCollections(target);
//if(status.isOk())
// FetchDatasets(QueryNodeImpl* target);
return status;
#endif
}