public final class ByteArrayBuffer extends Object implements Serializable
| Constructor and Description |
|---|
ByteArrayBuffer(int capacity)
Creates an instance of
ByteArrayBuffer with the given initial
capacity. |
| Modifier and Type | Method and Description |
|---|---|
void |
append(byte[] b,
int off,
int len)
Appends
len bytes to this buffer from the given source
array starting at index off. |
void |
append(char[] b,
int off,
int len)
Appends
len chars to this buffer from the given source
array starting at index off. |
void |
append(CharArrayBuffer b,
int off,
int len)
Appends
len chars to this buffer from the given source
char array buffer starting at index off. |
void |
append(int b)
Appends
b byte to this buffer. |
byte[] |
buffer()
Returns reference to the underlying byte array.
|
int |
byteAt(int i)
Returns the
byte value in this buffer at the specified
index. |
int |
capacity()
Returns the current capacity.
|
void |
clear()
Clears content of the buffer.
|
void |
ensureCapacity(int required)
Ensures that the capacity is at least equal to the specified minimum.
|
int |
indexOf(byte b)
Returns the index within this buffer of the first occurrence of the
specified byte, starting the search at
0 and finishing
at length(). |
int |
indexOf(byte b,
int from,
int to)
Returns the index within this buffer of the first occurrence of the
specified byte, starting the search at the specified
beginIndex and finishing at endIndex. |
boolean |
isEmpty()
|
boolean |
isFull()
|
int |
length()
Returns the length of the buffer (byte count).
|
void |
setLength(int len)
Sets the length of the buffer.
|
byte[] |
toByteArray()
Converts the content of this buffer to an array of bytes.
|
public ByteArrayBuffer(int capacity)
ByteArrayBuffer with the given initial
capacity.capacity - the capacitypublic void append(byte[] b,
int off,
int len)
len bytes to this buffer from the given source
array starting at index off. The capacity of the buffer
is increased, if necessary, to accommodate all len bytes.b - the bytes to be appended.off - the index of the first byte to append.len - the number of bytes to append.IndexOutOfBoundsException - if off if out of
range, len is negative, or
off + len is out of range.public void append(int b)
b byte to this buffer. The capacity of the buffer
is increased, if necessary, to accommodate the additional byte.b - the byte to be appended.public void append(char[] b,
int off,
int len)
len chars to this buffer from the given source
array starting at index off. The capacity of the buffer
is increased if necessary to accommodate all len chars.
The chars are converted to bytes using simple cast.
b - the chars to be appended.off - the index of the first char to append.len - the number of bytes to append.IndexOutOfBoundsException - if off if out of
range, len is negative, or
off + len is out of range.public void append(CharArrayBuffer b, int off, int len)
len chars to this buffer from the given source
char array buffer starting at index off. The capacity
of the buffer is increased if necessary to accommodate all
len chars.
The chars are converted to bytes using simple cast.
b - the chars to be appended.off - the index of the first char to append.len - the number of bytes to append.IndexOutOfBoundsException - if off if out of
range, len is negative, or
off + len is out of range.public void clear()
public byte[] toByteArray()
public int byteAt(int i)
byte value in this buffer at the specified
index. The index argument must be greater than or equal to
0, and less than the length of this buffer.i - the index of the desired byte value.IndexOutOfBoundsException - if index is
negative or greater than or equal to length().public int capacity()
public int length()
public void ensureCapacity(int required)
required
argument is non-positive, this method takes no action.required - the minimum required capacity.public byte[] buffer()
public void setLength(int len)
0.len - the new lengthIndexOutOfBoundsException - if the
len argument is greater than the current
capacity of the buffer or less than 0.public boolean isEmpty()
true if this buffer is empty, false
otherwise.public boolean isFull()
true if this buffer is full, false
otherwise.public int indexOf(byte b,
int from,
int to)
beginIndex and finishing at endIndex.
If no such byte occurs in this buffer within the specified bounds,
-1 is returned.
There is no restriction on the value of beginIndex and
endIndex. If beginIndex is negative,
it has the same effect as if it were zero. If endIndex is
greater than length(), it has the same effect as if it were
length(). If the beginIndex is greater than
the endIndex, -1 is returned.
b - the byte to search for.from - the index to start the search from.to - the index to finish the search at.-1 if the byte does
not occur.public int indexOf(byte b)
0 and finishing
at length(). If no such byte occurs in this buffer within
those bounds, -1 is returned.b - the byte to search for.-1 if the byte does not occur.Copyright © 2005–2022 The Apache Software Foundation. All rights reserved.