public ClassInfoIndex AddIndexOn(string name, string[] indexFields, bool acceptMultipleValuesForSameKey)
{
if (_indexes == null)
{
_indexes = new OdbList <ClassInfoIndex>();
}
var cii = new ClassInfoIndex
{
ClassInfoId = _oidInfo.ID,
Name = name,
IsUnique = !acceptMultipleValuesForSameKey
};
var attributeIds = new int[indexFields.Length];
for (var i = 0; i < indexFields.Length; i++)
{
attributeIds[i] = GetAttributeId(indexFields[i]);
}
cii.AttributeIds = attributeIds;
_indexes.Add(cii);
return(cii);
}
protected override IOdbComparable ComputeIndexKey(ClassInfoIndex index)
{
var constraint = Query.GetCriteria();
var values = ((IInternalConstraint)constraint).GetValues();
// if values.hasOid() is true, this means that we are working of the full object,
// the index key is then the oid and not the object itself
return values.HasOid()
? new SimpleCompareKey(values.GetOid())
: base.ComputeIndexKey(index);
}
public void RemoveIndex(ClassInfoIndex cii)
{
_indexes.Remove(cii);
}
public ClassInfoIndex AddIndexOn(string name, string[] indexFields, bool acceptMultipleValuesForSameKey)
{
if (_indexes == null)
_indexes = new OdbList<ClassInfoIndex>();
var cii = new ClassInfoIndex
{
ClassInfoId = _oidInfo.ID,
Name = name,
IsUnique = !acceptMultipleValuesForSameKey
};
var attributeIds = new int[indexFields.Length];
for (var i = 0; i < indexFields.Length; i++)
attributeIds[i] = GetAttributeId(indexFields[i]);
cii.AttributeIds = attributeIds;
_indexes.Add(cii);
return cii;
}
private void Init()
{
_start = 0;
_end = 0;
// for instance, only manage index for one field query using 'equal'
if (_classInfo.HasIndex() && _query.HasCriteria() &&
((IInternalConstraint) _query.GetCriteria()).CanUseIndex())
{
var fields = _query.GetAllInvolvedFields();
if (fields.IsEmpty())
_useIndex = false;
else
{
var fieldIds = GetAllInvolvedFieldIds(fields);
_classInfoIndex = _classInfo.GetIndexForAttributeIds(fieldIds);
if (_classInfoIndex != null)
_useIndex = true;
}
}
// Keep the detail
_details = GetDetails();
}
public void RemoveIndex(ClassInfoIndex cii)
{
_indexes.Remove(cii);
}