Geen cache-versie.
Caching uitgeschakeld. Standaardinstelling voor deze pagina:ingeschakeld (code LNG204)Als het scherm te langzaam is, kunt u de gebruikersmodus uitschakelen om de cacheversie te bekijken.
-
- All Superinterfaces:
- AutoCloseable, Channel, Closeable, WritableByteChannel
- All Known Implementing Classes:
- DatagramChannel, FileChannel, Pipe.SinkChannel, SocketChannel
public interface GatheringByteChannel extends WritableByteChannel
A channel that can write bytes from a sequence of buffers.A gathering write operation writes, in a single invocation, a sequence of bytes from one or more of a given sequence of buffers. Gathering writes are often useful when implementing network protocols or file formats that, for example, group data into segments consisting of one or more fixed-length headers followed by a variable-length body. Similar scattering read operations are defined in the
ScatteringByteChannelinterface.- Since:
- 1.4
-
-
Methods Modifier and Type Method and Description longwrite(ByteBuffer[] srcs)Writes a sequence of bytes to this channel from the given buffers.longwrite(ByteBuffer[] srcs, int offset, int length)Writes a sequence of bytes to this channel from a subsequence of the given buffers.-
write
-
-
-
-
-
long write(ByteBuffer[] srcs, int offset, int length) throws IOException
Writes a sequence of bytes to this channel from a subsequence of the given buffers.An attempt is made to write up to r bytes to this channel, where r is the total number of bytes remaining in the specified subsequence of the given buffer array, that is,
at the moment that this method is invoked.srcs[offset].remaining() + srcs[offset+1].remaining() + ... + srcs[offset+length-1].remaining()Suppose that a byte sequence of length n is written, where 0 <= n <= r. Up to the first srcs[offset].remaining() bytes of this sequence are written from buffer srcs[offset], up to the next srcs[offset+1].remaining() bytes are written from buffer srcs[offset+1], and so forth, until the entire byte sequence is written. As many bytes as possible are written from 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.
Unless otherwise specified, a write operation will return only after writing all of the r requested bytes. Some types of channels, depending upon their state, may write only some of the bytes or possibly none at all. A socket channel in non-blocking mode, for example, cannot write any more bytes than are free in the socket's output buffer.
This method may be invoked at any time. If another thread has already initiated a write operation upon this channel, however, then an invocation of this method will block until the first operation is complete.
- Parameters:
srcs- The buffers from which bytes are to be retrievedoffset- The offset within the buffer array of the first buffer from which bytes are to be retrieved; must be non-negative and no larger than srcs.lengthlength- The maximum number of buffers to be accessed; must be non-negative and no larger than srcs.length - offset- Returns:
- The number of bytes written, possibly zero
- Throws:
IndexOutOfBoundsException- If the preconditions on the offset and length parameters do not holdNonWritableChannelException- If this channel was not opened for writingClosedChannelException- If this channel is closedAsynchronousCloseException- If another thread closes this channel while the write operation is in progressClosedByInterruptException- If another thread interrupts the current thread while the write operation is in progress, thereby closing the channel and setting the current thread's interrupt statusIOException- If some other I/O error occurs
-
long write(ByteBuffer[] srcs) throws IOException
Writes a sequence of bytes to this channel from the given buffers.An invocation of this method of the form c.write(srcs) behaves in exactly the same manner as the invocation
c.write(srcs, 0, srcs.length);
- Parameters:
srcs- The buffers from which bytes are to be retrieved- Returns:
- The number of bytes written, possibly zero
- Throws:
NonWritableChannelException- If this channel was not opened for writingClosedChannelException- If this channel is closedAsynchronousCloseException- If another thread closes this channel while the write operation is in progressClosedByInterruptException- If another thread interrupts the current thread while the write operation is in progress, thereby closing the channel and setting the current thread's interrupt statusIOException- If some other I/O error occurs
-
-
Nederlandse vertaling
U hebt gevraagd om deze site in het Nederlands te bezoeken. Voor nu wordt alleen de interface vertaald, maar nog niet alle inhoud.Als je me wilt helpen met vertalingen, is je bijdrage welkom. Het enige dat u hoeft te doen, is u op de site registreren en mij een bericht sturen waarin u wordt gevraagd om u toe te voegen aan de groep vertalers, zodat u de gewenste pagina's kunt vertalen. Een link onderaan elke vertaalde pagina geeft aan dat u de vertaler bent en heeft een link naar uw profiel.
Bij voorbaat dank.
Document heeft de 11/06/2005 gemaakt, de laatste keer de 04/03/2020 gewijzigd
Bron van het afgedrukte document:https://www.gaudry.be/nl/java-api-rf-java/nio/channels/gatheringbytechannel.html
De infobrol is een persoonlijke site waarvan de inhoud uitsluitend mijn verantwoordelijkheid is. De tekst is beschikbaar onder CreativeCommons-licentie (BY-NC-SA). Meer info op de gebruiksvoorwaarden en de auteur.
Referenties
Deze verwijzingen en links verwijzen naar documenten die geraadpleegd zijn tijdens het schrijven van deze pagina, of die aanvullende informatie kunnen geven, maar de auteurs van deze bronnen kunnen niet verantwoordelijk worden gehouden voor de inhoud van deze pagina.
De auteur Deze site is als enige verantwoordelijk voor de manier waarop de verschillende concepten, en de vrijheden die met de referentiewerken worden genomen, hier worden gepresenteerd. Vergeet niet dat u meerdere broninformatie moet doorgeven om het risico op fouten te verkleinen.
