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java.lang.Objectorg.apache.hadoop.io.file.tfile.Utils
public final class Utils
Supporting Utility classes used by TFile, and shared by users of TFile.
| Nested Class Summary | |
|---|---|
static class |
Utils.Version
A generic Version class. |
| Method Summary | ||
|---|---|---|
static
|
lowerBound(List<? extends Comparable<? super T>> list,
T key)
Lower bound binary search. |
|
static
|
lowerBound(List<? extends T> list,
T key,
Comparator<? super T> cmp)
Lower bound binary search. |
|
static String |
readString(DataInput in)
Read a String as a VInt n, followed by n Bytes in Text format. |
|
static int |
readVInt(DataInput in)
Decoding the variable-length integer. |
|
static long |
readVLong(DataInput in)
Decoding the variable-length integer. |
|
static
|
upperBound(List<? extends Comparable<? super T>> list,
T key)
Upper bound binary search. |
|
static
|
upperBound(List<? extends T> list,
T key,
Comparator<? super T> cmp)
Upper bound binary search. |
|
static void |
writeString(DataOutput out,
String s)
Write a String as a VInt n, followed by n Bytes as in Text format. |
|
static void |
writeVInt(DataOutput out,
int n)
Encoding an integer into a variable-length encoding format. |
|
static void |
writeVLong(DataOutput out,
long n)
Encoding a Long integer into a variable-length encoding format. |
|
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Method Detail |
|---|
public static void writeVInt(DataOutput out,
int n)
throws IOException
Utils#writeVLong(out, n).
out - output streamn - The integer to be encoded
IOExceptionwriteVLong(DataOutput, long)
public static void writeVLong(DataOutput out,
long n)
throws IOException
out - output streamn - the integer number
IOException
public static int readVInt(DataInput in)
throws IOException
(int)Utils#readVLong(in).
in - input stream
IOExceptionreadVLong(DataInput)
public static long readVLong(DataInput in)
throws IOException
in - input stream
IOException
public static void writeString(DataOutput out,
String s)
throws IOException
out - s -
IOException
public static String readString(DataInput in)
throws IOException
in - The input stream.
IOException
public static <T> int lowerBound(List<? extends T> list,
T key,
Comparator<? super T> cmp)
T - Type of the input key.list - The listkey - The input key.cmp - Comparator for the key.
public static <T> int upperBound(List<? extends T> list,
T key,
Comparator<? super T> cmp)
T - Type of the input key.list - The listkey - The input key.cmp - Comparator for the key.
public static <T> int lowerBound(List<? extends Comparable<? super T>> list,
T key)
T - Type of the input key.list - The listkey - The input key.
public static <T> int upperBound(List<? extends Comparable<? super T>> list,
T key)
T - Type of the input key.list - The listkey - The input key.
|
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