本文整理汇总了C#中Key.CompareTo方法的典型用法代码示例。如果您正苦于以下问题：C# Key.CompareTo方法的具体用法？C# Key.CompareTo怎么用？C# Key.CompareTo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Key的用法示例。
在下文中一共展示了Key.CompareTo方法的4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: Compare
public void Compare()
{
var x = new Key();
Assert.IsTrue(x.CompareTo(null) > 0);
Assert.IsFalse(x.Equals(null));
Assert.IsFalse(x.Equals(string.Empty));
Assert.IsTrue(x != null);
var y = new Key();
Assert.AreEqual(x, y);
Assert.IsTrue(x.CompareTo(y) == 0);
Assert.IsTrue(x == y);
x.Row = "A";
y.Row = "B";
Assert.AreNotEqual(x, y);
Assert.IsTrue(x.CompareTo(y) < 0);
Assert.IsTrue(y.CompareTo(x) > 0);
Assert.IsTrue(x != y);
Assert.IsTrue(x < y);
Assert.IsFalse(x > y);
x.Row = "AB";
y.Row = "AB";
Assert.AreEqual(x, y);
Assert.IsTrue(x.CompareTo(y) == 0);
Assert.IsTrue(y.CompareTo(x) == 0);
Assert.IsTrue(x == y);
x.ColumnFamily = "A";
y.ColumnFamily = "B";
Assert.AreNotEqual(x, y);
Assert.IsTrue(x.CompareTo(y) < 0);
Assert.IsTrue(y.CompareTo(x) > 0);
Assert.IsTrue(x != y);
Assert.IsTrue(x < y);
Assert.IsFalse(x > y);
x.ColumnFamily = null;
y.ColumnFamily = string.Empty;
Assert.AreNotEqual(x, y);
Assert.IsTrue(x.CompareTo(y) < 0);
Assert.IsTrue(y.CompareTo(x) > 0);
x.ColumnFamily = "AB";
y.ColumnFamily = "AB";
Assert.AreEqual(x, y);
Assert.IsTrue(x.CompareTo(y) == 0);
Assert.IsTrue(y.CompareTo(x) == 0);
Assert.IsTrue(x == y);
x.ColumnQualifier = "A";
y.ColumnQualifier = "B";
Assert.AreNotEqual(x, y);
Assert.IsTrue(x.CompareTo(y) < 0);
Assert.IsTrue(y.CompareTo(x) > 0);
Assert.IsTrue(x != y);
Assert.IsTrue(x < y);
Assert.IsFalse(x > y);
x.ColumnQualifier = null;
y.ColumnQualifier = string.Empty;
Assert.AreNotEqual(x, y);
Assert.IsTrue(x.CompareTo(y) < 0);
Assert.IsTrue(y.CompareTo(x) > 0);
Assert.IsTrue(x != y);
Assert.IsTrue(x < y);
Assert.IsFalse(x > y);
x.ColumnQualifier = "AB";
y.ColumnQualifier = "AB";
Assert.AreEqual(x, y);
Assert.IsTrue(x.CompareTo(y) == 0);
Assert.IsTrue(y.CompareTo(x) == 0);
Assert.IsTrue(x == y);
x.DateTime = new DateTime(2011, 1, 1, 1, 2, 3, DateTimeKind.Utc);
y.DateTime = new DateTime(2011, 1, 1, 1, 2, 4, DateTimeKind.Utc);
Assert.AreNotEqual(x, y);
Assert.IsTrue(x.CompareTo(y) < 0);
Assert.IsTrue(y.CompareTo(x) > 0);
Assert.IsTrue(x != y);
Assert.IsTrue(x < y);
Assert.IsFalse(x > y);
x.DateTime = new DateTime(2011, 1, 1, 1, 2, 3, DateTimeKind.Utc);
y.DateTime = new DateTime(2011, 1, 1, 1, 2, 3, DateTimeKind.Utc);
Assert.AreEqual(x, y);
Assert.IsTrue(x.CompareTo(y) == 0);
Assert.IsTrue(y.CompareTo(x) == 0);
Assert.AreEqual(x, y);
}示例2: SearchBlockForKey
static bool SearchBlockForKey(byte[] block, Key key, out Value value)
{
int offset = BitConverter.ToUInt16 (block, 0); // grab the tree root
value = Value.Empty;
while (offset >= 2 && offset < Config.SortedBlockSize && block[offset] == (byte)RecordHeaderFlag.Record) {
int startingOffset = offset;
offset += 1; // skip header
offset += 4; // skip tree pointers
int keySize = Helper.Decode7BitInt (block, ref offset);
int cmp = key.CompareTo (block, offset, keySize);
if (cmp == 0) {
// Found it
var pair = ReadPair (block, ref startingOffset);
value = pair.Value;
return true;
} else if (cmp < 0)
offset = BitConverter.ToUInt16 (block, startingOffset + 1); // key < node => explore left side
else if (cmp > 0)
offset = BitConverter.ToUInt16 (block, startingOffset + 3); // key > node => explore right side
}
return false;
}示例3: LevelMergeReadTest2
public void LevelMergeReadTest2()
{
string path = Path.GetFullPath ("TestData\\LevelMergeReadTest2");
if (!Directory.Exists (path)) Directory.CreateDirectory (path);
int num_tables_to_merge = 4;
int items_per_table = 2500;
int totalData = 0;
for (int i = 0; i < num_tables_to_merge; i++) {
var mt = new MemTable ();
for (int j = 0; j < items_per_table; j++) {
var randKey = Key.Random (40);
var randVal = Value.Random (512);
mt.Add (randKey, randVal);
}
mt.WriteToSortedBlockTable ("TestData\\LevelMergeReadTest2", 0, i);
totalData += mt.Size;
}
var cache = new RazorCache ();
int ct = 0;
Key key = new Key (new ByteArray (new byte[] { 0 }));
var timer = new Stopwatch ();
timer.Start ();
foreach (var pair in SortedBlockTable.EnumerateMergedTablesPreCached(cache, "TestData\\LevelMergeReadTest2",
new List<PageRef>{
new PageRef { Level = 0, Version = 0},
new PageRef { Level = 0, Version = 1},
new PageRef { Level = 0, Version = 2},
new PageRef { Level = 0, Version = 3}
}, ExceptionHandling.ThrowAll, null)) {
Assert.True (key.CompareTo (pair.Key) < 0);
key = pair.Key;
ct++;
}
timer.Stop ();
Console.WriteLine ("Scanned through a multilevel merge at a throughput of {0} MB/s", (double)totalData / timer.Elapsed.TotalSeconds / (1024.0 * 1024.0));
}示例4: ScanBlockForKey
static bool ScanBlockForKey(byte[] block, Key key, out Value value)
{
int offset = 2; // skip over the tree root pointer
value = Value.Empty;
while (offset >= 2 && offset < Config.SortedBlockSize && block[offset] == (byte)RecordHeaderFlag.Record) {
int startingOffset = offset;
offset++; // skip past the header flag
offset += 4; // skip past the tree pointers
int keySize = Helper.Decode7BitInt (block, ref offset);
int cmp = key.CompareTo (block, offset, keySize);
if (cmp == 0) {
// Found it
var pair = ReadPair (block, ref startingOffset);
value = pair.Value;
return true;
} else if (cmp < 0)
return false;
offset += keySize;
// Skip past the value
int valueSize = Helper.Decode7BitInt (block, ref offset);
offset += valueSize;
}
return false;
}