本文整理汇总了C#中ITransaction.GetFile方法的典型用法代码示例。如果您正苦于以下问题：C# ITransaction.GetFile方法的具体用法？C# ITransaction.GetFile怎么用？C# ITransaction.GetFile使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ITransaction的用法示例。
在下文中一共展示了ITransaction.GetFile方法的11个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: CopyData
public static void CopyData(ITransaction source, ITransaction destination)
{
// The transaction in this object,
TreeSystemTransaction sourcet = (TreeSystemTransaction)source;
foreach(Key key in sourcet.Keys) {
// Get the source and destination files
DataFile sourceFile = sourcet.GetFile(key, FileAccess.ReadWrite);
DataFile destFile = destination.GetFile(key, FileAccess.Write);
// Copy the data
sourceFile.CopyTo(destFile, sourceFile.Length);
}
}示例2: CheckPathValid
private void CheckPathValid(ITransaction transaction)
{
if (!checkPerformed) {
lock (this) {
if (!checkPerformed) {
IDataFile df = transaction.GetFile(DbTransaction.MagicKey, FileAccess.Read);
StringDictionary magicSet = new StringDictionary(df);
string obType = magicSet["ob_type"];
string version = magicSet["version"];
// Error if the data is incorrect,
if (obType == null || !obType.Equals("Deveel.Data.CloudBase"))
throw new ApplicationException("Path '" + PathName + "' is not a CloudBase");
checkPerformed = true;
}
}
}
}示例3: InsertKeyRef
private void InsertKeyRef(ITransaction t, string key, string value, long[] uid)
{
IDataFile keyListDf = t.GetFile(KeyUidMapKey, FileAccess.ReadWrite);
StringDictionary keyList = new StringDictionary(keyListDf);
// Put it in the property set,
if (value == null) {
keyList.SetValue(key, null);
} else {
keyList.SetValue(key, ToUidString(uid[0], uid[1]));
}
}示例4: InsertValue
private void InsertValue(ITransaction t, long[] uid, byte[] value)
{
// Make a hash value,
long hashCode = uid[0]/16;
// Insert the uid into a list,
InsertToUidList(t, uid);
// Turn it into a key object,
Key hashKey = new Key(13, 0, hashCode);
// The DataFile
IDataFile dfile = t.GetFile(hashKey, FileAccess.ReadWrite);
BinaryWriter writer = new BinaryWriter(new DataFileStream(dfile));
// The size of the entry being added,
int sz = 20 + value.Length;
// Position at the end of the file,
dfile.Position = dfile.Length;
// Insert the entry,
// Put the size of the value entry,
writer.Write(sz);
// The 128-bit uid,
writer.Write(uid[0]);
writer.Write(uid[1]);
// The value content,
writer.Write(value, 0, value.Length);
}示例5: GetValueFromUid
private byte[] GetValueFromUid(ITransaction t, long[] uid)
{
// Make a hash value,
long hashCode = uid[0]/16;
// Turn it into a key object,
Key hashKey = new Key(13, 0, hashCode);
// The DataFile
IDataFile dfile = t.GetFile(hashKey, FileAccess.ReadWrite);
BinaryReader reader = new BinaryReader(new DataFileStream(dfile));
long pos = 0;
long size = dfile.Length;
while (pos < size) {
dfile.Position = pos;
int sz = reader.ReadInt32();
// Get the stored uid,
long inuidH = reader.ReadInt64();
long inuidL = reader.ReadInt64();
// If the uid matches,
if (inuidH == uid[0] && inuidL == uid[1]) {
// Match, so put the serialization of the record in the file,
int bufSz = sz - 20;
byte[] buf = new byte[bufSz];
reader.Read(buf, 0, bufSz);
// If buf is empty return null,
if (buf.Length == 0)
return null;
return buf;
}
pos = pos + sz;
}
// Not found, return null
return null;
}示例6: HasAppliedUid
private bool HasAppliedUid(ITransaction t, long[] uid)
{
// Make a hash value,
long hashCode = uid[0]/16;
// Turn it into a key object,
Key hashKey = new Key(13, 0, hashCode);
// The DataFile
IDataFile dfile = t.GetFile(hashKey, FileAccess.ReadWrite);
long pos = 0;
long size = dfile.Length;
BinaryReader reader = new BinaryReader(new DataFileStream(dfile));
while (pos < size) {
dfile.Position = pos;
int sz = reader.ReadInt32();
// Get the stored uid,
long inuidH = reader.ReadInt64();
long inuidL = reader.ReadInt64();
// If the uid matches,
if (inuidH == uid[0] && inuidL == uid[1]) {
// Match, so return true
return true;
}
pos = pos + sz;
}
// Not found, return false
return false;
}示例7: GetLastBlockId
private BlockId GetLastBlockId(ITransaction t)
{
IDataFile bidUidListDf = t.GetFile(BlockidUidMapKey, FileAccess.Read);
BlockIdUidList blockidUidList = new BlockIdUidList(bidUidListDf);
long pos = blockidUidList.Count - 1;
if (pos < 0) {
return null;
}
return blockidUidList.GetBlockIdAt(pos);
}示例8: InsertToUidList
private static void InsertToUidList(ITransaction t, long[] uid)
{
// Create the UIDList object,
IDataFile uidListDf = t.GetFile(UidListKey, FileAccess.ReadWrite);
UidList uidList = new UidList(uidListDf);
// Inserts the uid in the list
uidList.AddUid(uid);
}示例9: InsertBlockIdRef
private static void InsertBlockIdRef(ITransaction t, BlockId blockId, long[] uid)
{
IDataFile bidUidListDf = t.GetFile(BlockidUidMapKey, FileAccess.ReadWrite);
BlockIdUidList blockidUidList = new BlockIdUidList(bidUidListDf);
blockidUidList.AddBlockIdRef(blockId, uid);
}示例10: GetUidForKey
private static long[] GetUidForKey(ITransaction t, string key)
{
IDataFile keyListDf = t.GetFile(KeyUidMapKey, FileAccess.ReadWrite);
StringDictionary keyList = new StringDictionary(keyListDf);
string val = keyList.GetValue(key);
if (val == null) {
return null;
}
return ParseUidString(val);
}示例11: GetUidForBlock
// ------ Storage ------
private static long[] GetUidForBlock(ITransaction t, BlockId blockId)
{
IDataFile bidUidListDf = t.GetFile(BlockidUidMapKey, FileAccess.ReadWrite);
BlockIdUidList blockidUidList = new BlockIdUidList(bidUidListDf);
long pos = blockidUidList.PositionOfBlockId(blockId);
if (pos < 0)
return null;
return blockidUidList.GetUidAt(pos);
}