public override object Execute(IContextProvider provider, object[] args, MemoryPool pool)
{
object[] keys = new object[m_params.Count + 1];
keys[0] = provider.Context;
for (int k = 0; k < m_params.Count; k++)
keys[k + 1] = pool.GetData(m_params[k]);
Key key = new Key(QueryContext.Engine, keys);
object res;
lock (m_cache)
{
if (m_cache.TryGetValue(key, out res))
return res.CloneObject();
}
res = m_body.Execute(provider, args, pool);
lock (m_cache)
{
if (!m_cache.ContainsKey(key))
{
key.CloneKeys();
m_cache.Add(key, res);
}
}
return res.CloneObject();
}
public override object Execute(IContextProvider provider, object[] args, MemoryPool pool)
{
XQueryNodeIterator res = (XQueryNodeIterator)pool.GetData(_cache);
if (res != null)
return res.Clone();
#if PF
PerfMonitor.Global.Begin(this);
#endif
XQueryNodeIterator rootIter =
XQueryNodeIterator.Create(_path[0].Execute(provider, args, pool)).CreateBufferedIterator();
bool orderedSet = _isOrderedSet && rootIter.IsSingleIterator;
res = new ResultIterator(this, provider, orderedSet, !orderedSet & QueryContext.EnableHPC, rootIter, args, pool);
if (EnableCaching)
{
res = res.CreateBufferedIterator();
pool.SetData(_cache, res.Clone());
}
#if PF
PerfMonitor.Global.End(this);
#endif
return res;
}
public override object Execute(IContextProvider provider, object[] args, MemoryPool pool)
{
if (value == null)
return args[arg_index];
return pool.GetData(value);
}
