/// <summary>for internal processing only.</summary>
/// <remarks>for internal processing only.</remarks>
public override bool Exists(string path)
{
Db4objects.Db4o.IO.MemoryIoAdapter mia = (Db4objects.Db4o.IO.MemoryIoAdapter)_memoryFiles
.Get(path);
if (mia == null)
{
return(false);
}
return(mia._length > 0);
}
/// <summary>returns the content bytes for a database with the given name.</summary>
/// <remarks>returns the content bytes for a database with the given name.</remarks>
/// <param name="name">the name to be use for #openFile() or #openServer() calls</param>
/// <returns>the content bytes</returns>
public virtual byte[] Get(string name)
{
Db4objects.Db4o.IO.MemoryIoAdapter mia = (Db4objects.Db4o.IO.MemoryIoAdapter)_memoryFiles
.Get(name);
if (mia == null)
{
return(null);
}
return(mia._bytes);
}
/// <summary>for internal processing only.</summary>
/// <remarks>for internal processing only.</remarks>
/// <exception cref="Db4objects.Db4o.Ext.Db4oIOException"></exception>
public override IoAdapter Open(string path, bool lockFile, long initialLength, bool
readOnly)
{
Db4objects.Db4o.IO.MemoryIoAdapter mia = (Db4objects.Db4o.IO.MemoryIoAdapter)_memoryFiles
.Get(path);
if (mia == null)
{
mia = new Db4objects.Db4o.IO.MemoryIoAdapter(this, (int)initialLength);
_memoryFiles.Put(path, mia);
}
return(mia);
}
public virtual void TestGrowth()
{
MemoryIoAdapter factory = new MemoryIoAdapter();
factory.GrowBy(GrowBy);
IoAdapter io = factory.Open(Url, false, 0, false);
AssertLength(factory, 0);
WriteBytes(io, GrowBy - 1);
AssertLength(factory, GrowBy);
WriteBytes(io, GrowBy - 1);
AssertLength(factory, GrowBy * 2);
WriteBytes(io, GrowBy * 2);
AssertLength(factory, GrowBy * 4 - 2);
}
/// <summary>for internal processing only.</summary>
/// <remarks>for internal processing only.</remarks>
/// <exception cref="Db4objects.Db4o.Ext.Db4oIOException"></exception>
public override IoAdapter Open(string path, bool lockFile, long initialLength, bool
readOnly)
{
Db4objects.Db4o.IO.MemoryIoAdapter mia = (Db4objects.Db4o.IO.MemoryIoAdapter)_memoryFiles
.Get(path);
if (mia == null)
{
mia = new Db4objects.Db4o.IO.MemoryIoAdapter(this, (int)initialLength);
_memoryFiles.Put(path, mia);
}
return mia;
}
private void AssertLength(MemoryIoAdapter factory, int expected)
{
Assert.AreEqual(expected, factory.Get(Url).Length);
}
private MemoryIoAdapter(Db4objects.Db4o.IO.MemoryIoAdapter adapter, int initialLength
) : this(adapter, new byte[initialLength])
{
}
private MemoryIoAdapter(Db4objects.Db4o.IO.MemoryIoAdapter adapter, byte[] bytes)
{
_bytes = bytes;
_length = bytes.Length;
_growBy = adapter._growBy;
}
private MemoryIoAdapter(MemoryIoAdapter adapter, int initialLength
) : this(adapter, new byte[initialLength])
{
}
private MemoryIoAdapter(MemoryIoAdapter adapter, byte[] bytes)
{
_bytes = bytes;
_length = bytes.Length;
_growBy = adapter._growBy;
}
private MemoryIoAdapter(MemoryIoAdapter adapter, int initialLength
) : this(adapter, new byte[initialLength])
{
}
private MemoryIoAdapter(MemoryIoAdapter adapter, byte[] bytes)
{
_bytes = bytes;
_length = bytes.Length;
_growBy = adapter._growBy;
}