private IQuery QueryFromTemplate(PersistenceContext context, PersistentEntryTemplate
template)
{
IQuery query = NewQuery(context, template.className);
AddFieldConstraints(query, template);
return(query);
}
public virtual IEnumerator Select(PersistenceContext context, PersistentEntryTemplate
template)
{
LogMethodCall("select", context, template);
IQuery query = QueryFromTemplate(context, template);
return(new ObjectSetIterator(query.Execute()));
}
private void AddFieldConstraints(IQuery query, PersistentEntryTemplate template)
{
if (template.fieldNames.Length == 0)
{
return;
}
var c = AddFieldConstraint(query, template, 0);
for (var i = 1; i < template.fieldNames.Length; ++i)
{
c = c.And(AddFieldConstraint(query, template, i));
}
}
private IEnumerator Select(PersistentEntryTemplate template)
{
return(_provider.Select(_context, template));
}
private IConstraint AddFieldConstraint(IQuery query, PersistentEntryTemplate template
, int index)
{
return(query.Descend(template.fieldNames[index]).Constrain(template.fieldValues[index
]));
}
private IQuery QueryFromTemplate(PersistenceContext context, PersistentEntryTemplate
template)
{
var query = NewQuery(context, template.className);
AddFieldConstraints(query, template);
return query;
}
private void AddFieldConstraints(IQuery query, PersistentEntryTemplate template)
{
if (template.fieldNames.Length == 0)
{
return;
}
var c = AddFieldConstraint(query, template, 0);
for (var i = 1; i < template.fieldNames.Length; ++i)
{
c = c.And(AddFieldConstraint(query, template, i));
}
}
private IConstraint AddFieldConstraint(IQuery query, PersistentEntryTemplate template
, int index)
{
return query.Descend(template.fieldNames[index]).Constrain(template.fieldValues[index
]);
}
public virtual IEnumerator Select(PersistenceContext context, PersistentEntryTemplate
template)
{
LogMethodCall("select", context, template);
var query = QueryFromTemplate(context, template);
return new ObjectSetIterator(query.Execute());
}
private IEnumerator Select(PersistentEntryTemplate template)
{
return _provider.Select(_context, template);
}
