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java.lang.Object org.apache.hadoop.io.UTF8
public class UTF8
A WritableComparable for strings that uses the UTF8 encoding.
Also includes utilities for efficiently reading and writing UTF-8.
Nested Class Summary | |
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static class |
UTF8.Comparator
Deprecated. A WritableComparator optimized for UTF8 keys. |
Constructor Summary | |
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UTF8()
Deprecated. |
|
UTF8(String string)
Deprecated. Construct from a given string. |
|
UTF8(UTF8 utf8)
Deprecated. Construct from a given string. |
Method Summary | |
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int |
compareTo(Object o)
Deprecated. Compare two UTF8s. |
boolean |
equals(Object o)
Deprecated. Returns true iff o is a UTF8 with the same contents. |
byte[] |
getBytes()
Deprecated. The raw bytes. |
static byte[] |
getBytes(String string)
Deprecated. Convert a string to a UTF-8 encoded byte array. |
int |
getLength()
Deprecated. The number of bytes in the encoded string. |
int |
hashCode()
Deprecated. |
void |
readFields(DataInput in)
Deprecated. Deserialize the fields of this object from in . |
static String |
readString(DataInput in)
Deprecated. Read a UTF-8 encoded string. |
void |
set(String string)
Deprecated. Set to contain the contents of a string. |
void |
set(UTF8 other)
Deprecated. Set to contain the contents of a string. |
static void |
skip(DataInput in)
Deprecated. Skips over one UTF8 in the input. |
String |
toString()
Deprecated. Convert to a String. |
void |
write(DataOutput out)
Deprecated. Serialize the fields of this object to out . |
static int |
writeString(DataOutput out,
String s)
Deprecated. Write a UTF-8 encoded string. |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public UTF8()
public UTF8(String string)
public UTF8(UTF8 utf8)
Method Detail |
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public byte[] getBytes()
public int getLength()
public void set(String string)
public void set(UTF8 other)
public void readFields(DataInput in) throws IOException
Writable
in
.
For efficiency, implementations should attempt to re-use storage in the existing object where possible.
readFields
in interface Writable
in
- DataInput
to deseriablize this object from.
IOException
public static void skip(DataInput in) throws IOException
IOException
public void write(DataOutput out) throws IOException
Writable
out
.
write
in interface Writable
out
- DataOuput
to serialize this object into.
IOException
public int compareTo(Object o)
compareTo
in interface Comparable
public String toString()
toString
in class Object
public boolean equals(Object o)
o
is a UTF8 with the same contents.
equals
in class Object
public int hashCode()
hashCode
in class Object
public static byte[] getBytes(String string)
String.getBytes(String)
public static String readString(DataInput in) throws IOException
IOException
DataInput.readUTF()
public static int writeString(DataOutput out, String s) throws IOException
IOException
DataOutput.writeUTF(String)
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