/// <exception cref="System.IO.IOException"></exception>
public DefragmentServicesImpl(DefragmentConfig defragConfig, IDefragmentListener
listener)
{
_listener = listener;
Config4Impl originalConfig = (Config4Impl)defragConfig.Db4oConfig();
IStorage storage = defragConfig.BackupStorage();
if (defragConfig.ReadOnly())
{
storage = new NonFlushingStorage(storage);
}
Config4Impl sourceConfig = PrepareConfig(originalConfig, storage, defragConfig.ReadOnly
());
_sourceDb = (LocalObjectContainer)Db4oFactory.OpenFile(sourceConfig, defragConfig
.TempPath()).Ext();
_sourceDb.ShowInternalClasses(true);
defragConfig.Db4oConfig().BlockSize(_sourceDb.BlockSize());
if (!originalConfig.GenerateCommitTimestamps().DefiniteNo())
{
defragConfig.Db4oConfig().GenerateCommitTimestamps(_sourceDb.Config().GenerateCommitTimestamps
().DefiniteYes());
}
_targetDb = FreshTargetFile(defragConfig);
_mapping = defragConfig.Mapping();
_mapping.Open();
_defragConfig = defragConfig;
}
public static void NonFlushingStorage()
{
// #example: Using the non-flushing storage
IEmbeddedConfiguration configuration = Db4oEmbedded.NewConfiguration();
IStorage fileStorage = new FileStorage();
// the non-flushing storage improves performance, but risks database corruption.
IStorage cachingStorage = new NonFlushingStorage(fileStorage);
configuration.File.Storage = cachingStorage;
IObjectContainer container = Db4oEmbedded.OpenFile(configuration, "database.db4o");
// #end example
}
public virtual void Test()
{
MockBin mock = new MockBin();
BinConfiguration binConfig = new BinConfiguration("uri", true, 42L, false);
IBin storage = new NonFlushingStorage(new _IStorage_19(mock)).Open(binConfig);
byte[] buffer = new byte[5];
storage.Read(1, buffer, 4);
storage.Write(2, buffer, 3);
mock.ReturnValueForNextCall(42);
Assert.AreEqual(42, mock.Length());
storage.Sync();
storage.Close();
mock.Verify(new MethodCall[] { new MethodCall("open", new object[] { binConfig })
, new MethodCall("read", new object[] { 1L, buffer, 4 }), new MethodCall("write"
, new object[] { 2L, buffer, 3 }), new MethodCall("length", new object[] { }),
new MethodCall("close", new object[] { }) });
}
