public DatabaseEntry MultipleKeyGen(DatabaseEntry key, DatabaseEntry data)
{
LinkedList <DatabaseEntry> skeys = new LinkedList <DatabaseEntry>();
String dataStr = Configuration.strFromDBT(data);
foreach (String s in dataStr.Split(','))
{
DatabaseEntry tmp = new DatabaseEntry();
Configuration.dbtFromString(tmp, s);
skeys.AddLast(tmp);
}
return(new MultipleDatabaseEntry(skeys, false));
}
public void TestMultiKeyGen()
{
testName = "TestPrefixCompare";
SetUpTest(true);
string dbFileName = testHome + "/" + testName + ".db";
// Open a primary btree database.
BTreeDatabaseConfig btreeDBConfig =
new BTreeDatabaseConfig();
btreeDBConfig.Creation = CreatePolicy.ALWAYS;
BTreeDatabase btreeDB = BTreeDatabase.Open(
dbFileName, btreeDBConfig);
// Open a secondary btree database.
SecondaryBTreeDatabaseConfig secBtreeDBConfig =
new SecondaryBTreeDatabaseConfig(btreeDB, null);
secBtreeDBConfig.Primary = btreeDB;
secBtreeDBConfig.KeyGen =
new SecondaryKeyGenDelegate(
MultipleKeyGen);
SecondaryBTreeDatabase secDB =
SecondaryBTreeDatabase.Open(
dbFileName, secBtreeDBConfig);
/* Check that multiple secondary keys work */
DatabaseEntry key, data;
String keyStr = "key";
key = new DatabaseEntry();
Configuration.dbtFromString(key, keyStr);
data = new DatabaseEntry();
String[] dataStrs = { "abc", "def", "ghi", "jkl" };
String dataStr = String.Join(",", dataStrs);
Configuration.dbtFromString(data, dataStr);
btreeDB.Put(key, data);
foreach (String skeyStr in dataStrs)
{
DatabaseEntry skey = new DatabaseEntry();
Configuration.dbtFromString(skey, skeyStr);
Assert.IsTrue(secDB.Exists(skey));
}
/*
* Check that a single secondary key, returned in a
* MultipleDatabaseEntry works.
*/
keyStr = "key2";
key = new DatabaseEntry();
Configuration.dbtFromString(key, keyStr);
data = new DatabaseEntry();
dataStrs = new string[1] {
"abcdefghijkl"
};
dataStr = String.Join(",", dataStrs);
Configuration.dbtFromString(data, dataStr);
btreeDB.Put(key, data);
// Check that secondary keys work
foreach (String skeyStr in dataStrs)
{
DatabaseEntry skey = new DatabaseEntry();
Configuration.dbtFromString(skey, skeyStr);
Assert.IsTrue(secDB.Exists(skey));
}
}
