/// <summary>
/// Get items from a database.
/// </summary>
/// <typeparam name="K"></typeparam>
/// <typeparam name="V"></typeparam>
/// <param name="key"></param>
/// <param name="value"></param>
/// <param name="op"></param>
/// <returns>false if not found.</returns>
public bool Get <K, V>(ref K key, ref V value, CursorOp op)
{
ISerializer <K> keySerializer = SerializerRegistry.Get <K>();
ISerializer <V> valueSerializer = SerializerRegistry.Get <V>();
byte[] keyBytes = keySerializer.Serialize(key);
byte[] valueBytes = valueSerializer.Serialize(value);
bool found = Get(ref keyBytes, ref valueBytes, op);
if (found)
{
if (keyBytes != null)
{
key = keySerializer.Deserialize(keyBytes);
}
else
{
key = default(K);
}
if (valueBytes != null)
{
value = valueSerializer.Deserialize(valueBytes);
}
else
{
value = default(V);
}
}
return(found);
}
public void Put <K, V>(K key, V value, PutOption option = PutOption.Unspecific)
{
ISerializer <K> keySerializer = SerializerRegistry.Get <K>();
ISerializer <V> valueSerializer = SerializerRegistry.Get <V>();
Put(keySerializer.Serialize(key), valueSerializer.Serialize(value), option);
}
/// <summary>
/// Store by cursor.
/// This function stores key/data pairs into the database. The cursor is
/// positioned at the new item, or on failure usually near it.
/// </summary>
/// <typeparam name="K"></typeparam>
/// <typeparam name="V"></typeparam>
/// <param name="key"></param>
/// <param name="value"></param>
/// <param name="option"></param>
public void Put <K, V>(K key, V value, CursorPutOption option = CursorPutOption.Unspecific)
{
ISerializer <K> keySerializer = SerializerRegistry.Get <K>();
ISerializer <V> valueSerializer = SerializerRegistry.Get <V>();
byte[] keyBytes = keySerializer.Serialize(key);
byte[] valueBytes = valueSerializer.Serialize(value);
Put(keyBytes, valueBytes, option);
}
/// <summary>
/// Get a single key
/// </summary>
/// <typeparam name="K"></typeparam>
/// <typeparam name="V"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public V Get <K, V>(K key)
{
ISerializer <K> keySerializer = SerializerRegistry.Get <K>();
ISerializer <V> valueSerializer = SerializerRegistry.Get <V>();
byte[] buffer = Get(keySerializer.Serialize(key));
if (buffer == null)
{
return(default(V));
}
return(valueSerializer.Deserialize(buffer));
}
/// <summary>
/// Delete a specific key
/// </summary>
/// <param name="key"></param>
/// <returns>true if deleted successfully; false means not-found</returns>
public bool Del <K>(K key)
{
ISerializer <K> keySerializer = SerializerRegistry.Get <K>();
return(Del(keySerializer.Serialize(key)));
}
