public abstract class IntBuffer extends Buffer implements Comparable<IntBuffer>
A int buffer can be created in either of the following ways:
Allocate a new int array and create a buffer
based on it;Wrap an existing int array to create a new buffer;ByteBuffer.asIntBuffer to
create a int buffer based on a byte buffer.| Modifier and Type | Method and Description |
|---|---|
static IntBuffer |
allocate(int capacity)
Creates an int buffer based on a newly allocated int array.
|
int[] |
array()
Returns the array that backs this buffer (optional operation).
|
int |
arrayOffset()
Returns the offset into the array returned by
array of the first
element of the buffer (optional operation). |
abstract IntBuffer |
asReadOnlyBuffer()
Returns a read-only buffer that shares its content with this buffer.
|
IntBuffer |
clear()
Clears this buffer.
|
abstract IntBuffer |
compact()
Compacts this int buffer.
|
int |
compareTo(IntBuffer otherBuffer)
Compares the remaining ints of this buffer to another int buffer's
remaining ints.
|
abstract IntBuffer |
duplicate()
Returns a duplicated buffer that shares its content with this buffer.
|
boolean |
equals(Object other)
Checks whether this int buffer is equal to another object.
|
IntBuffer |
flip()
Flips this buffer.
|
abstract int |
get()
Returns the int at the current position and increases the position by 1.
|
abstract int |
get(int index)
Returns an int at the specified index; the position is not changed.
|
IntBuffer |
get(int[] dst)
Reads ints from the current position into the specified int array and
increases the position by the number of ints read.
|
IntBuffer |
get(int[] dst,
int dstOffset,
int intCount)
Reads ints from the current position into the specified int array,
starting from the specified offset, and increases the position by the
number of ints read.
|
boolean |
hasArray()
Returns true if
array and arrayOffset won't throw. |
int |
hashCode()
Calculates this buffer's hash code from the remaining chars.
|
abstract boolean |
isDirect()
Indicates whether this buffer is direct.
|
IntBuffer |
limit(int newLimit)
Sets the limit of this buffer.
|
IntBuffer |
mark()
Marks the current position, so that the position may return to this point
later by calling
reset(). |
int |
mismatch(IntBuffer that)
Finds and returns the relative index of the first mismatch between this
buffer and a given buffer.
|
abstract ByteOrder |
order()
Returns the byte order used by this buffer when converting ints from/to
bytes.
|
IntBuffer |
position(int newPosition)
Sets the position of this buffer.
|
abstract IntBuffer |
put(int i)
Writes the given int to the current position and increases the position
by 1.
|
IntBuffer |
put(int[] src)
Writes ints from the given int array to the current position and
increases the position by the number of ints written.
|
IntBuffer |
put(int[] src,
int srcOffset,
int intCount)
Writes ints from the given int array, starting from the specified offset,
to the current position and increases the position by the number of ints
written.
|
IntBuffer |
put(IntBuffer src)
Writes all the remaining ints of the
src int buffer to this
buffer's current position, and increases both buffers' position by the
number of ints copied. |
abstract IntBuffer |
put(int index,
int i)
Write a int to the specified index of this buffer; the position is not
changed.
|
IntBuffer |
reset()
Resets the position of this buffer to the
mark. |
IntBuffer |
rewind()
Rewinds this buffer.
|
abstract IntBuffer |
slice()
Returns a sliced buffer that shares its content with this buffer.
|
static IntBuffer |
wrap(int[] array)
Creates a new int buffer by wrapping the given int array.
|
static IntBuffer |
wrap(int[] array,
int start,
int intCount)
Creates a new int buffer by wrapping the given int array.
|
capacity, getElementSizeShift, hasRemaining, isReadOnly, limit, position, remaining, toStringpublic static IntBuffer allocate(int capacity)
capacity - the capacity of the new buffer.IllegalArgumentException - if capacity is less than zero.public static IntBuffer wrap(int[] array)
Calling this method has the same effect as
wrap(array, 0, array.length).
array - the int array which the new buffer will be based on.public static IntBuffer wrap(int[] array, int start, int intCount)
The new buffer's position will be start, limit will be
start + intCount, capacity will be the length of the array.
array - the int array which the new buffer will be based on.start - the start index, must not be negative and not greater than
array.lengthintCount - the length, must not be negative and not greater than
array.length - start.IndexOutOfBoundsException - if either start or intCount is invalid.public final int[] array()
BufferSubclasses should override this method with a covariant return type to provide the exact type of the array.
Use hasArray to ensure this method won't throw.
(A separate call to isReadOnly is not necessary.)
public final int arrayOffset()
Bufferarray of the first
element of the buffer (optional operation). The backing array (if there is one)
is not necessarily the same size as the buffer, and position 0 in the buffer is
not necessarily the 0th element in the array. Use
buffer.array()[offset + buffer.arrayOffset() to access element offset
in buffer.
Use hasArray to ensure this method won't throw.
(A separate call to isReadOnly is not necessary.)
arrayOffset in class Bufferpublic abstract IntBuffer asReadOnlyBuffer()
The returned buffer is guaranteed to be a new instance, even this buffer is read-only itself. The new buffer's position, limit, capacity and mark are the same as this buffer's.
The new buffer shares its content with this buffer, which means this buffer's change of content will be visible to the new buffer. The two buffer's position, limit and mark are independent.
public final IntBuffer position(int newPosition)
If the mark is set and it is greater than the new position, then it is cleared.
public final IntBuffer limit(int newLimit)
If the current position in the buffer is in excess of
newLimit then, on returning from this call, it will have
been adjusted to be equivalent to newLimit. If the mark
is set and is greater than the new limit, then it is cleared.
public final IntBuffer mark()
reset().public final IntBuffer reset()
mark.public final IntBuffer clear()
While the content of this buffer is not changed, the following internal changes take place: the current position is reset back to the start of the buffer, the value of the buffer limit is made equal to the capacity and mark is cleared.
public final IntBuffer flip()
The limit is set to the current position, then the position is set to zero, and the mark is cleared.
The content of this buffer is not changed.
public final IntBuffer rewind()
The position is set to zero, and the mark is cleared. The content of this buffer is not changed.
public abstract IntBuffer compact()
The remaining ints will be moved to the head of the buffer, starting from
position zero. Then the position is set to remaining(); the
limit is set to capacity; the mark is cleared.
ReadOnlyBufferException - if no changes may be made to the contents of this buffer.public int compareTo(IntBuffer otherBuffer)
compareTo in interface Comparable<IntBuffer>otherBuffer - another int buffer.other; 0 if this
equals to other; a positive value if this is greater
than other.ClassCastException - if other is not an int buffer.public int mismatch(IntBuffer that)
position of each buffer and will be in the range of
0 (inclusive) up to the smaller of the remaining
elements in each buffer (exclusive).
If the two buffers share a common prefix then the returned index is the length of the common prefix and it follows that there is a mismatch between the two buffers at that index within the respective buffers. If one buffer is a proper prefix of the other then the returned index is the smaller of the remaining elements in each buffer, and it follows that the index is only valid for the buffer with the larger number of remaining elements. Otherwise, there is no mismatch.
that - The byte buffer to be tested for a mismatch with this bufferpublic abstract IntBuffer duplicate()
The duplicated buffer's position, limit, capacity and mark are the same as this buffer. The duplicated buffer's read-only property and byte order are the same as this buffer's.
The new buffer shares its content with this buffer, which means either buffer's change of content will be visible to the other. The two buffers' position, limit and mark are independent.
public boolean equals(Object other)
If other is not a int buffer then false is returned. Two
int buffers are equal if and only if their remaining ints are exactly the
same. Position, limit, capacity and mark are not considered.
equals in class Objectother - the object to compare with this int buffer.true if this int buffer is equal to other,
false otherwise.Object.hashCode()public abstract int get()
BufferUnderflowException - if the position is equal or greater than limit.public IntBuffer get(int[] dst)
Calling this method has the same effect as
get(dst, 0, dst.length).
dst - the destination int array.BufferUnderflowException - if dst.length is greater than remaining().public IntBuffer get(int[] dst, int dstOffset, int intCount)
dst - the target int array.dstOffset - the offset of the int array, must not be negative and not
greater than dst.length.intCount - the number of ints to read, must be no less than zero and not
greater than dst.length - dstOffset.IndexOutOfBoundsException - if either dstOffset or intCount is invalid.BufferUnderflowException - if intCount is greater than remaining().public abstract int get(int index)
index - the index, must not be negative and less than limit.IndexOutOfBoundsException - if index is invalid.public final boolean hasArray()
Bufferarray and arrayOffset won't throw. This method does not
return true for buffers not backed by arrays because the other methods would throw
UnsupportedOperationException, nor does it return true for buffers backed by
read-only arrays, because the other methods would throw ReadOnlyBufferException.public int hashCode()
hashCode in class ObjectObject.equals(java.lang.Object)public abstract boolean isDirect()
An int buffer is direct if it is based on a byte buffer and the byte buffer is direct.
public abstract ByteOrder order()
If this buffer is not based on a byte buffer, then always return the platform's native byte order.
public abstract IntBuffer put(int i)
i - the int to write.BufferOverflowException - if position is equal or greater than limit.ReadOnlyBufferException - if no changes may be made to the contents of this buffer.public final IntBuffer put(int[] src)
Calling this method has the same effect as
put(src, 0, src.length).
src - the source int array.BufferOverflowException - if remaining() is less than src.length.ReadOnlyBufferException - if no changes may be made to the contents of this buffer.public IntBuffer put(int[] src, int srcOffset, int intCount)
src - the source int array.srcOffset - the offset of int array, must not be negative and not greater
than src.length.intCount - the number of ints to write, must be no less than zero and not
greater than src.length - srcOffset.BufferOverflowException - if remaining() is less than intCount.IndexOutOfBoundsException - if either srcOffset or intCount is invalid.ReadOnlyBufferException - if no changes may be made to the contents of this buffer.public IntBuffer put(IntBuffer src)
src int buffer to this
buffer's current position, and increases both buffers' position by the
number of ints copied.src - the source int buffer.BufferOverflowException - if src.remaining() is greater than this buffer's
remaining().IllegalArgumentException - if src is this buffer.ReadOnlyBufferException - if no changes may be made to the contents of this buffer.public abstract IntBuffer put(int index, int i)
index - the index, must not be negative and less than the limit.i - the int to write.IndexOutOfBoundsException - if index is invalid.ReadOnlyBufferException - if no changes may be made to the contents of this buffer.public abstract IntBuffer slice()
The sliced buffer's capacity will be this buffer's remaining(),
and its zero position will correspond to this buffer's current position.
The new buffer's position will be 0, limit will be its capacity, and its
mark is cleared. The new buffer's read-only property and byte order are
same as this buffer's.
The new buffer shares its content with this buffer, which means either buffer's change of content will be visible to the other. The two buffers' position, limit and mark are independent.