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java.lang.Objectorg.apache.hadoop.record.Buffer
public class Buffer
A byte sequence that is used as a Java native type for buffer. It is resizable and distinguishes between the count of the seqeunce and the current capacity.
| Constructor Summary | |
|---|---|
Buffer()
Create a zero-count sequence. |
|
Buffer(byte[] bytes)
Create a Buffer using the byte array as the initial value. |
|
Buffer(byte[] bytes,
int offset,
int length)
Create a Buffer using the byte range as the initial value. |
|
| Method Summary | |
|---|---|
void |
append(byte[] bytes)
Append specified bytes to the buffer |
void |
append(byte[] bytes,
int offset,
int length)
Append specified bytes to the buffer. |
Object |
clone()
|
int |
compareTo(Object other)
Define the sort order of the Buffer. |
void |
copy(byte[] bytes,
int offset,
int length)
Copy the specified byte array to the Buffer. |
boolean |
equals(Object other)
|
byte[] |
get()
Get the data from the Buffer. |
int |
getCapacity()
Get the capacity, which is the maximum count that could handled without resizing the backing storage. |
int |
getCount()
Get the current count of the buffer. |
int |
hashCode()
|
void |
reset()
Reset the buffer to 0 size |
void |
set(byte[] bytes)
Use the specified bytes array as underlying sequence. |
void |
setCapacity(int newCapacity)
Change the capacity of the backing storage. |
String |
toString()
|
String |
toString(String charsetName)
Convert the byte buffer to a string an specific character encoding |
void |
truncate()
Change the capacity of the backing store to be the same as the current count of buffer. |
| Methods inherited from class java.lang.Object |
|---|
finalize, getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public Buffer()
public Buffer(byte[] bytes)
bytes - This array becomes the backing storage for the object.
public Buffer(byte[] bytes,
int offset,
int length)
bytes - Copy of this array becomes the backing storage for the object.offset - offset into byte arraylength - length of data| Method Detail |
|---|
public void set(byte[] bytes)
bytes - byte sequence
public final void copy(byte[] bytes,
int offset,
int length)
bytes - byte array to be assignedoffset - offset into byte arraylength - length of datapublic byte[] get()
public int getCount()
public int getCapacity()
public void setCapacity(int newCapacity)
newCapacity - The new capacity in bytes.public void reset()
public void truncate()
public void append(byte[] bytes,
int offset,
int length)
bytes - byte array to be appendedoffset - offset into byte arraylength - length of datapublic void append(byte[] bytes)
bytes - byte array to be appendedpublic int hashCode()
hashCode in class Objectpublic int compareTo(Object other)
compareTo in interface Comparableother - The other buffer
public boolean equals(Object other)
equals in class Objectpublic String toString()
toString in class Object
public String toString(String charsetName)
throws UnsupportedEncodingException
charsetName - Valid Java Character Set Name
UnsupportedEncodingException
public Object clone()
throws CloneNotSupportedException
clone in class ObjectCloneNotSupportedException
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