java.nio.Buffer
java.nio.LongBuffer
java.nio.DirectLongBufferU
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java.lang.Object
| Field Summary | |
protected static boolean |
unaligned
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protected static sun.misc.Unsafe |
unsafe
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protected Object |
viewedBuffer
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| Fields inherited from class java.nio.LongBuffer |
hb, isReadOnly, offset |
| Fields inherited from class java.nio.Buffer |
address |
| Constructor Summary | |
(package private) |
DirectLongBufferU(sun.nio.ch.DirectBuffer db,
int mark,
int pos,
int lim,
int cap,
int off)
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| Method Summary | |
long |
address()
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LongBuffer |
asReadOnlyBuffer()
Creates a new, read-only long buffer that shares this buffer's content. |
sun.misc.Cleaner |
cleaner()
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LongBuffer |
compact()
Compacts this buffer (optional operation). |
LongBuffer |
duplicate()
Creates a new long buffer that shares this buffer's content. |
long |
get()
Relative get method. |
long |
get(int i)
Absolute get method. |
LongBuffer |
get(long[] dst,
int offset,
int length)
Relative bulk get method. |
boolean |
isDirect()
Tells whether or not this long buffer is direct. |
boolean |
isReadOnly()
Tells whether or not this buffer is read-only. |
private long |
ix(int i)
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ByteOrder |
order()
Retrieves this buffer's byte order. |
LongBuffer |
put(int i,
long x)
Absolute put method (optional operation). |
LongBuffer |
put(long x)
Relative put method (optional operation). |
LongBuffer |
put(long[] src,
int offset,
int length)
Relative bulk put method (optional operation). |
LongBuffer |
put(LongBuffer src)
Relative bulk put method (optional operation). |
LongBuffer |
slice()
Creates a new long buffer whose content is a shared subsequence of this buffer's content. |
Object |
viewedBuffer()
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| Methods inherited from class java.nio.LongBuffer |
allocate, array, arrayOffset, compareTo, equals, get, hasArray, hashCode, put, toString, wrap, wrap |
| Methods inherited from class java.nio.Buffer |
capacity, checkBounds, checkIndex, checkIndex, clear, flip, hasRemaining, limit, limit, mark, markValue, nextGetIndex, nextGetIndex, nextPutIndex, nextPutIndex, position, position, remaining, reset, rewind |
| Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Field Detail |
protected static final sun.misc.Unsafe unsafe
protected static final boolean unaligned
protected Object viewedBuffer
| Constructor Detail |
DirectLongBufferU(sun.nio.ch.DirectBuffer db,
int mark,
int pos,
int lim,
int cap,
int off)
| Method Detail |
public Object viewedBuffer()
viewedBuffer in interface sun.nio.ch.DirectBufferpublic sun.misc.Cleaner cleaner()
cleaner in interface sun.nio.ch.DirectBufferpublic LongBuffer slice()
LongBufferThe content of the new buffer will start at this buffer's current position. Changes to this buffer's content will be visible in the new buffer, and vice versa; the two buffers' position, limit, and mark values will be independent.
The new buffer's position will be zero, its capacity and its limit will be the number of longs remaining in this buffer, and its mark will be undefined. The new buffer will be direct if, and only if, this buffer is direct, and it will be read-only if, and only if, this buffer is read-only.
slice in class LongBufferpublic LongBuffer duplicate()
LongBufferThe content of the new buffer will be that of this buffer. Changes to this buffer's content will be visible in the new buffer, and vice versa; the two buffers' position, limit, and mark values will be independent.
The new buffer's capacity, limit, position, and mark values will be identical to those of this buffer. The new buffer will be direct if, and only if, this buffer is direct, and it will be read-only if, and only if, this buffer is read-only.
duplicate in class LongBufferpublic LongBuffer asReadOnlyBuffer()
LongBufferThe content of the new buffer will be that of this buffer. Changes to this buffer's content will be visible in the new buffer; the new buffer itself, however, will be read-only and will not allow the shared content to be modified. The two buffers' position, limit, and mark values will be independent.
The new buffer's capacity, limit, position, and mark values will be identical to those of this buffer.
If this buffer is itself read-only then this method behaves in
exactly the same way as the duplicate method.
asReadOnlyBuffer in class LongBufferpublic long address()
address in interface sun.nio.ch.DirectBufferprivate long ix(int i)
public long get()
LongBuffer
get in class LongBufferpublic long get(int i)
LongBuffer
get in class LongBufferi - The index from which the long will be read
public LongBuffer get(long[] dst,
int offset,
int length)
LongBuffer This method transfers longs from this buffer into the given
destination array. If there are fewer longs remaining in the
buffer than are required to satisfy the request, that is, if
length > remaining(), then no
longs are transferred and a BufferUnderflowException is
thrown.
Otherwise, this method copies length longs from this buffer into the given array, starting at the current position of this buffer and at the given offset in the array. The position of this buffer is then incremented by length.
In other words, an invocation of this method of the form src.get(dst, off, len) has exactly the same effect as the loop
for (int i = off; i < off + len; i++)
dst[i] = src.get();
except that it first checks that there are sufficient longs in
this buffer and it is potentially much more efficient.
get in class LongBufferdst - The array into which longs are to be writtenoffset - The offset within the array of the first long to be
written; must be non-negative and no larger than
dst.lengthlength - The maximum number of longs to be written to the given
array; must be non-negative and no larger than
dst.length - offset
public LongBuffer put(long x)
LongBufferWrites the given long into this buffer at the current position, and then increments the position.
put in class LongBufferx - The long to be written
public LongBuffer put(int i,
long x)
LongBufferWrites the given long into this buffer at the given index.
put in class LongBufferi - The index at which the long will be writtenx - The long value to be written
public LongBuffer put(LongBuffer src)
LongBuffer This method transfers the longs remaining in the given source
buffer into this buffer. If there are more longs remaining in the
source buffer than in this buffer, that is, if
src.remaining() > remaining(),
then no longs are transferred and a BufferOverflowException is thrown.
Otherwise, this method copies n = src.remaining() longs from the given buffer into this buffer, starting at each buffer's current position. The positions of both buffers are then incremented by n.
In other words, an invocation of this method of the form dst.put(src) has exactly the same effect as the loop
while (src.hasRemaining())
dst.put(src.get());
except that it first checks that there is sufficient space in this
buffer and it is potentially much more efficient.
put in class LongBuffersrc - The source buffer from which longs are to be read;
must not be this buffer
public LongBuffer put(long[] src,
int offset,
int length)
LongBuffer This method transfers longs into this buffer from the given
source array. If there are more longs to be copied from the array
than remain in this buffer, that is, if
length > remaining(), then no
longs are transferred and a BufferOverflowException is
thrown.
Otherwise, this method copies length longs from the given array into this buffer, starting at the given offset in the array and at the current position of this buffer. The position of this buffer is then incremented by length.
In other words, an invocation of this method of the form dst.put(src, off, len) has exactly the same effect as the loop
for (int i = off; i < off + len; i++)
dst.put(a[i]);
except that it first checks that there is sufficient space in this
buffer and it is potentially much more efficient.
put in class LongBuffersrc - The array from which longs are to be readoffset - The offset within the array of the first long to be read;
must be non-negative and no larger than array.lengthlength - The number of longs to be read from the given array;
must be non-negative and no larger than
array.length - offset
public LongBuffer compact()
LongBufferThe longs between the buffer's current position and its limit, if any, are copied to the beginning of the buffer. That is, the long at index p = position() is copied to index zero, the long at index p + 1 is copied to index one, and so forth until the long at index limit() - 1 is copied to index n = limit() - 1 - p. The buffer's position is then set to n+1 and its limit is set to its capacity. The mark, if defined, is discarded.
The buffer's position is set to the number of longs copied, rather than to zero, so that an invocation of this method can be followed immediately by an invocation of another relative put method.
compact in class LongBufferpublic boolean isDirect()
LongBuffer
isDirect in class LongBufferpublic boolean isReadOnly()
Buffer
isReadOnly in class Bufferpublic ByteOrder order()
LongBuffer The byte order of a long buffer created by allocation or by
wrapping an existing long array is the native order of the underlying
hardware. The byte order of a long buffer created as a view of a byte buffer is that of the
byte buffer at the moment that the view is created.
order in class LongBuffer
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