public Document(UInt64 id): base(id) {} // for lookups
public Document(string url, IndexRoot indexRoot, SessionBase session)
{
this.url = url;
HashCodeComparer<Word> hashCodeComparer = new HashCodeComparer<Word>();
m_wordHit = new BTreeMapOidShort<Word, WordHit>(null, session);
m_wordHit.TransientBatchSize = 10000;
wordSet = new BTreeSetOidShort<Word>(hashCodeComparer, session, 1500, sizeof(int));
}
public override IEnumerable <KeyValuePair <long, Tick> > Read()
{
BTreeMapOidShort <long, VelocityTick> map = (BTreeMapOidShort <long, VelocityTick>)session.Open(mapId);
foreach (KeyValuePair <long, VelocityTick> pair in map)
{
yield return(new KeyValuePair <long, Tick>(pair.Key, pair.Value.Record));
}
}
} // for lookups
public Document(string url, IndexRoot indexRoot, SessionBase session)
{
this.url = url;
HashCodeComparer <Word> hashCodeComparer = new HashCodeComparer <Word>();
m_wordHit = new BTreeMapOidShort <Word, WordHit>(null, session);
m_wordHit.TransientBatchSize = 10000;
wordSet = new BTreeSetOidShort <Word>(hashCodeComparer, session, 1500, sizeof(int));
}
public override void Write(int flowID, IEnumerable <KeyValuePair <long, Tick> > flow)
{
Placement place = new Placement((ushort)checked (flowID + 10));
Placement velocityRecordPlace = new Placement((ushort)(flowID + 10), 1000, 1, 10000, ushort.MaxValue, false, false, UInt32.MaxValue, false);
BTreeMapOidShort <long, VelocityTick> map = new BTreeMapOidShort <long, VelocityTick>(null, session, 1000);
mapId = map.Persist(place, session);
map.ValuePlacement = velocityRecordPlace;
map.TransientBatchSize = 2000;
foreach (var kv in flow)
{
VelocityTick tick = new VelocityTick(kv.Value);
map.AddFast(kv.Key, tick);
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
Console.WriteLine("Running with databases in directory: " + session.SystemDirectory);
const UInt32 numberOfPersons = 10000;
const ushort nodeMaxSize = 5000;
const ushort comparisonByteArraySize = sizeof(UInt64); // enough room to hold entire idNumber of a Person
const bool comparisonArrayIsCompleteKey = true;
const bool addIdCompareIfEqual = false;
Person person;
session.BeginUpdate();
session.DefaultDatabaseLocation().CompressPages = PageInfo.compressionKind.None;
//mySession.SetTraceAllDbActivity();
BTreeSet <string> stringSet = new BTreeSet <string>(null, session);
BTreeSetOidShort <string> stringSetShort = new BTreeSetOidShort <string>(null, session);
BTreeMap <string, string> stringMap = new BTreeMap <string, string>(null, session);
BTreeMapOidShort <string, string> stringMapShort = new BTreeMapOidShort <string, string>(null, session);
CompareByField <Person> compareByField = new CompareByField <Person>("idNumber", session, addIdCompareIfEqual);
BTreeSet <Person> bTree = new BTreeSet <Person>(compareByField, session, nodeMaxSize, comparisonByteArraySize, comparisonArrayIsCompleteKey);
session.Persist(bTree); // Persist the root of the BTree so that we have something persisted that can be flushed to disk if memory available becomes low
for (int i = 0; i < numberOfPersons; i++)
{
person = new Person();
// session.Persist(person);
bTree.AddFast(person);
}
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.UseExternalStorageApi = true;
session.BeginRead();
BTreeSet <Person> bTree = session.AllObjects <BTreeSet <Person> >().First();
foreach (Person person in (IEnumerable <Person>)bTree)
{
if (person.IdNumber > 196988888791402)
{
Console.WriteLine(person);
break;
}
}
session.Commit();
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
Console.WriteLine("Running with databases in directory: " + session.SystemDirectory);
const UInt32 numberOfPersons = 10000;
const ushort nodeMaxSize = 5000;
const ushort comparisonByteArraySize = sizeof(UInt64); // enough room to hold entire idNumber of a Person
const bool comparisonArrayIsCompleteKey = true;
const bool addIdCompareIfEqual = false;
Person person;
session.BeginUpdate();
session.DefaultDatabaseLocation().CompressPages = PageInfo.compressionKind.None;
//mySession.SetTraceAllDbActivity();
BTreeSet<string> stringSet = new BTreeSet<string>(null, session);
BTreeSetOidShort<string> stringSetShort = new BTreeSetOidShort<string>(null, session);
BTreeMap<string, string> stringMap = new BTreeMap<string, string>(null, session);
BTreeMapOidShort<string, string> stringMapShort = new BTreeMapOidShort<string, string>(null, session);
CompareByField<Person> compareByField = new CompareByField<Person>("idNumber", session, addIdCompareIfEqual);
BTreeSet<Person> bTree = new BTreeSet<Person>(compareByField, session, nodeMaxSize, comparisonByteArraySize, comparisonArrayIsCompleteKey);
session.Persist(bTree); // Persist the root of the BTree so that we have something persisted that can be flushed to disk if memory available becomes low
for (int i = 0; i < numberOfPersons; i++)
{
person = new Person();
// session.Persist(person);
bTree.AddFast(person);
}
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.UseExternalStorageApi = true;
session.BeginRead();
BTreeSet<Person> bTree = session.AllObjects<BTreeSet<Person>>().First();
foreach (Person person in (IEnumerable<Person>)bTree)
{
if (person.IdNumber > 196988888791402)
{
Console.WriteLine(person);
break;
}
}
session.Commit();
}
}
public void aCreateDefaultCompareOidShortIntKeyIntValue(int number)
{
Oid id;
using (SessionNoServer session = new SessionNoServer(systemDir))
{
Placement place = new Placement((UInt32)number, 1, 1, UInt16.MaxValue, UInt16.MaxValue);
session.Compact();
session.BeginUpdate();
BTreeMapOidShort <int, int> bTree = new BTreeMapOidShort <int, int>(null, session);
bTree.Persist(place, session);
id = bTree.Oid;
for (int i = 0; i < number; i++)
{
bTree.Add(i, i + 1);
}
bTree.Clear();
for (int i = 0; i < number; i++)
{
bTree.Add(i, i + 1);
}
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
BTreeMapOidShort <int, int> bTree = (BTreeMapOidShort <int, int>)session.Open(id);
int count = 0;
int prior = 0;
foreach (KeyValuePair <int, int> pair in bTree)
{
count++;
Assert.True(pair.Key == prior++);
Assert.True(pair.Key == pair.Value - 1);
}
Assert.True(number == count);
session.Commit();
}
}
public void aCreateDefaultCompareOidShortIntKeyIntValue(int number)
{
Oid id;
using (SessionNoServer session = new SessionNoServer(systemDir))
{
Placement place = new Placement((UInt32)number, 1, 1, UInt16.MaxValue, UInt16.MaxValue);
session.Compact();
session.BeginUpdate();
BTreeMapOidShort<int, int> bTree = new BTreeMapOidShort<int, int>(null, session);
bTree.Persist(place, session);
id = bTree.Oid;
for (int i = 0; i < number; i++)
{
bTree.Add(i, i + 1);
}
bTree.Clear();
for (int i = 0; i < number; i++)
{
bTree.Add(i, i + 1);
}
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
BTreeMapOidShort<int, int> bTree = (BTreeMapOidShort<int, int>)session.Open(id);
int count = 0;
int prior = 0;
foreach (KeyValuePair<int, int> pair in bTree)
{
count++;
Assert.True(pair.Key == prior++);
Assert.True(pair.Key == pair.Value - 1);
}
Assert.True(number == count);
session.Commit();
}
}
