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