static public void Main(System.String[] args)
{
int i;
Storage db = StorageFactory.Instance.CreateStorage();
db.Open("testbck1.dbs", pagePoolSize);
Root root = (Root)db.Root;
if (root == null)
{
root = new Root();
root.strIndex = db.CreateIndex(typeof(System.String), true);
root.intIndex = db.CreateFieldIndex(typeof(Record), "intKey", true);
root.compoundIndex = db.CreateFieldIndex(typeof(Record), new String[] { "strKey", "intKey" }, true);
db.Root = root;
}
FieldIndex intIndex = root.intIndex;
FieldIndex compoundIndex = root.compoundIndex;
Index strIndex = root.strIndex;
DateTime start = DateTime.Now;
long key = 1999;
for (i = 0; i < nRecords; i++)
{
Record rec = new Record();
key = (3141592621L * key + 2718281829L) % 1000000007L;
rec.intKey = key;
rec.strKey = System.Convert.ToString(key);
rec.realKey = (double)key;
intIndex.Put(rec);
strIndex.Put(new Key(rec.strKey), rec);
compoundIndex.Put(rec);
}
db.Commit();
System.Console.WriteLine("Elapsed time for inserting " + nRecords + " records: " + (DateTime.Now - start));
start = DateTime.Now;
System.IO.FileStream stream = new System.IO.FileStream("testbck2.dbs", FileMode.Create, FileAccess.Write);
db.Backup(stream);
stream.Close();
System.Console.WriteLine("Elapsed time for backup completion: " + (DateTime.Now - start));
db.Close();
db.Open("testbck2.dbs", pagePoolSize);
root = (Root)db.Root;
intIndex = root.intIndex;
strIndex = root.strIndex;
compoundIndex = root.compoundIndex;
start = DateTime.Now;
key = 1999;
for (i = 0; i < nRecords; i++)
{
key = (3141592621L * key + 2718281829L) % 1000000007L;
String strKey = System.Convert.ToString(key);
Record rec1 = (Record)intIndex.Get(new Key(key));
Record rec2 = (Record)strIndex.Get(new Key(strKey));
Record rec3 = (Record)compoundIndex.Get(new Key(strKey, key));
Debug.Assert(rec1 != null);
Debug.Assert(rec1 == rec2);
Debug.Assert(rec1 == rec3);
Debug.Assert(rec1.intKey == key);
Debug.Assert(rec1.realKey == (double)key);
Debug.Assert(strKey.Equals(rec1.strKey));
}
System.Console.WriteLine("Elapsed time for performing " + nRecords * 2 + " index searches: " + (DateTime.Now - start));
db.Close();
}
static public void Main(string[] args)
{
int i;
Storage db = StorageFactory.Instance.CreateStorage();
for (i = 0; i < args.Length; i++)
{
if ("altbtree" == args[i])
{
db.SetProperty("perst.alternative.btree", true);
}
}
db.Open("testcidx.dbs", pagePoolSize);
#if USE_GENERICS
MultiFieldIndex <Record> root = (MultiFieldIndex <Record>)db.Root;
if (root == null)
{
root = db.CreateFieldIndex <Record>(new string[] { "intKey", "strKey" }, true);
#else
FieldIndex root = (FieldIndex)db.Root;
if (root == null)
{
root = db.CreateFieldIndex(typeof(Record), new string[] { "intKey", "strKey" }, true);
#endif
db.Root = root;
}
DateTime start = DateTime.Now;
long key = 1999;
for (i = 0; i < nRecords; i++)
{
Record rec = new Record();
key = (3141592621L * key + 2718281829L) % 1000000007L;
rec.intKey = (int)((ulong)key >> 32);
rec.strKey = Convert.ToString((int)key);
root.Put(rec);
}
db.Commit();
Console.WriteLine("Elapsed time for inserting " + nRecords + " records: " + (DateTime.Now - start));
start = DateTime.Now;
key = 1999;
int minKey = Int32.MaxValue;
int maxKey = Int32.MinValue;
for (i = 0; i < nRecords; i++)
{
key = (3141592621L * key + 2718281829L) % 1000000007L;
int intKey = (int)((ulong)key >> 32);
String strKey = Convert.ToString((int)key);
#if USE_GENERICS
Record rec = root.Get(new Key(new Object[] { intKey, strKey }));
#else
Record rec = (Record)root.Get(new Key(new Object[] { intKey, strKey }));
#endif
Debug.Assert(rec != null && rec.intKey == intKey && rec.strKey.Equals(strKey));
if (intKey < minKey)
{
minKey = intKey;
}
if (intKey > maxKey)
{
maxKey = intKey;
}
}
Console.WriteLine("Elapsed time for performing " + nRecords + " index searches: " + (DateTime.Now - start));
start = DateTime.Now;
int n = 0;
string prevStr = "";
int prevInt = minKey;
foreach (Record rec in root.Range(new Key(minKey, ""),
new Key(maxKey + 1, "???"),
IterationOrder.AscentOrder))
{
Debug.Assert(rec.intKey > prevInt || rec.intKey == prevInt && rec.strKey.CompareTo(prevStr) > 0);
prevStr = rec.strKey;
prevInt = rec.intKey;
n += 1;
}
Debug.Assert(n == nRecords);
n = 0;
prevInt = maxKey + 1;
foreach (Record rec in root.Range(new Key(minKey, "", false),
new Key(maxKey + 1, "???", false),
IterationOrder.DescentOrder))
{
Debug.Assert(rec.intKey < prevInt || rec.intKey == prevInt && rec.strKey.CompareTo(prevStr) < 0);
prevStr = rec.strKey;
prevInt = rec.intKey;
n += 1;
}
Debug.Assert(n == nRecords);
Console.WriteLine("Elapsed time for iterating through " + (nRecords * 2) + " records: " + (DateTime.Now - start));
start = DateTime.Now;
key = 1999;
for (i = 0; i < nRecords; i++)
{
key = (3141592621L * key + 2718281829L) % 1000000007L;
int intKey = (int)((ulong)key >> 32);
String strKey = Convert.ToString((int)key);
#if USE_GENERICS
Record rec = root.Get(new Key(new Object[] { intKey, strKey }));
#else
Record rec = (Record)root.Get(new Key(new Object[] { intKey, strKey }));
#endif
Debug.Assert(rec != null && rec.intKey == intKey && rec.strKey.Equals(strKey));
Debug.Assert(root.Contains(rec));
root.Remove(rec);
rec.Deallocate();
}
Debug.Assert(!root.GetEnumerator().MoveNext());
Debug.Assert(!root.Reverse().GetEnumerator().MoveNext());
Console.WriteLine("Elapsed time for deleting " + nRecords + " records: " + (DateTime.Now - start));
db.Close();
}
}
static public void Main(string[] args)
{
int i;
Storage db = StorageFactory.Instance.CreateStorage();
for (i = 0; i < args.Length; i++)
{
if ("altbtree" == args[i])
{
db.SetProperty("perst.alternative.btree", true);
}
}
db.Open("test1.dbs", pagePoolSize);
Root root = (Root)db.Root;
if (root == null)
{
root = new Root();
#if USE_GENERICS
root.strIndex = db.CreateIndex <string, Record>(true);
root.intIndex = db.CreateFieldIndex <long, Record>("intKey", true);
root.compoundIndex = db.CreateFieldIndex <Record>(new string[] { "strKey", "intKey" }, true);
#else
root.strIndex = db.CreateIndex(typeof(System.String), true);
root.intIndex = db.CreateFieldIndex(typeof(Record), "intKey", true);
root.compoundIndex = db.CreateFieldIndex(typeof(Record), new String[] { "strKey", "intKey" }, true);
#endif
root.point.x = 1;
root.point.y = 2;
db.Root = root;
}
#if USE_GENERICS
FieldIndex <long, Record> intIndex = root.intIndex;
MultiFieldIndex <Record> compoundIndex = root.compoundIndex;
Index <string, Record> strIndex = root.strIndex;
#else
FieldIndex intIndex = root.intIndex;
FieldIndex compoundIndex = root.compoundIndex;
Index strIndex = root.strIndex;
#endif
DateTime start = DateTime.Now;
long key = 1999;
for (i = 0; i < nRecords; i++)
{
Record rec = new Record();
key = (3141592621L * key + 2718281829L) % 1000000007L;
rec.intKey = key;
rec.strKey = System.Convert.ToString(key);
rec.realKey = (double)key;
intIndex.Put(rec);
strIndex.Put(new Key(rec.strKey), rec);
compoundIndex.Put(rec);
}
db.Commit();
System.Console.WriteLine("Elapsed time for inserting " + nRecords + " records: " + (DateTime.Now - start));
start = DateTime.Now;
System.IO.StreamWriter writer = new System.IO.StreamWriter("test.xml");
db.ExportXML(writer);
writer.Close();
System.Console.WriteLine("Elapsed time for XML export: " + (DateTime.Now - start));
db.Close();
db.Open("test2.dbs", pagePoolSize);
start = DateTime.Now;
System.IO.StreamReader reader = new System.IO.StreamReader("test.xml");
db.ImportXML(reader);
reader.Close();
System.Console.WriteLine("Elapsed time for XML import: " + (DateTime.Now - start));
root = (Root)db.Root;
intIndex = root.intIndex;
strIndex = root.strIndex;
compoundIndex = root.compoundIndex;
Debug.Assert(root.point.x == 1 && root.point.y == 2);
start = DateTime.Now;
key = 1999;
for (i = 0; i < nRecords; i++)
{
key = (3141592621L * key + 2718281829L) % 1000000007L;
String strKey = System.Convert.ToString(key);
#if USE_GENERICS
Record rec1 = intIndex[key];
Record rec2 = strIndex[strKey];
Record rec3 = compoundIndex.Get(new Key(strKey, key));
#else
Record rec1 = (Record)intIndex.Get(new Key(key));
Record rec2 = (Record)strIndex.Get(new Key(strKey));
Record rec3 = (Record)compoundIndex.Get(new Key(strKey, key));
#endif
Debug.Assert(rec1 != null);
Debug.Assert(rec1 == rec2);
Debug.Assert(rec1 == rec3);
Debug.Assert(rec1.intKey == key);
Debug.Assert(rec1.realKey == (double)key);
Debug.Assert(strKey.Equals(rec1.strKey));
}
System.Console.WriteLine("Elapsed time for performing " + nRecords * 2 + " index searches: " + (DateTime.Now - start));
db.Close();
}