File	Doc	Category	Size	Date	Package
ScatteringByteChannel.java	API Doc	Java SE 5 API	5546	Fri Aug 26 14:57:10 BST 2005	java.nio.channels

ScatteringByteChannel

Fields Summary

Constructors Summary

Methods Summary
public long	read(java.nio.ByteBuffer[] dsts, int offset, int length) Reads a sequence of bytes from this channel into a subsequence of the given buffers. An invocation of this method attempts to read up to r bytes from this channel, where r is the total number of bytes remaining the specified subsequence of the given buffer array, that is, dsts[offset].remaining() + dsts[offset+1].remaining() + ... + dsts[offset+length-1].remaining() at the moment that this method is invoked. Suppose that a byte sequence of length n is read, where 0 <= n <= r. Up to the first dsts[offset].remaining() bytes of this sequence are transferred into buffer dsts[offset], up to the next dsts[offset+1].remaining() bytes are transferred into buffer dsts[offset+1], and so forth, until the entire byte sequence is transferred into the given buffers. As many bytes as possible are transferred into each buffer, hence the final position of each updated buffer, except the last updated buffer, is guaranteed to be equal to that buffer's limit. This method may be invoked at any time. If another thread has already initiated a read operation upon this channel, however, then an invocation of this method will block until the first operation is complete. param dsts The buffers into which bytes are to be transferred param offset The offset within the buffer array of the first buffer into which bytes are to be transferred; must be non-negative and no larger than dsts.length param length The maximum number of buffers to be accessed; must be non-negative and no larger than dsts.length - offset return The number of bytes read, possibly zero, or -1 if the channel has reached end-of-stream throws IndexOutOfBoundsException If the preconditions on the offset and length parameters do not hold throws NonReadableChannelException If this channel was not opened for reading throws ClosedChannelException If this channel is closed throws AsynchronousCloseException If another thread closes this channel while the read operation is in progress throws ClosedByInterruptException If another thread interrupts the current thread while the read operation is in progress, thereby closing the channel and setting the current thread's interrupt status throws IOException If some other I/O error occurs
public long	read(java.nio.ByteBuffer[] dsts) Reads a sequence of bytes from this channel into the given buffers. An invocation of this method of the form c.read(dsts) behaves in exactly the same manner as the invocation c.read(dsts, 0, srcs.length); param dsts The buffers into which bytes are to be transferred return The number of bytes read, possibly zero, or -1 if the channel has reached end-of-stream throws NonReadableChannelException If this channel was not opened for reading throws ClosedChannelException If this channel is closed throws AsynchronousCloseException If another thread closes this channel while the read operation is in progress throws ClosedByInterruptException If another thread interrupts the current thread while the read operation is in progress, thereby closing the channel and setting the current thread's interrupt status throws IOException If some other I/O error occurs