Google Cloud Platform
Java

RecordWriteChannel (Google App Engine API for Java)

com.google.appengine.api.files

Interface RecordWriteChannel

  • All Superinterfaces:
    java.lang.AutoCloseable, java.nio.channels.Channel, java.io.Closeable, java.nio.channels.WritableByteChannel

    Deprecated.

    @Deprecated
    public interface RecordWriteChannel
    extends java.nio.channels.WritableByteChannel
    A WritableByteChannel for writing records to a FileWriteChannel.

    The format of these records is defined by the leveldb log format: http://leveldb.googlecode.com/svn/trunk/doc/log_format.txt

    An instance of RecordWriteChannel may be obtained from the method: FileService.openRecordWriteChannel(AppEngineFile, boolean).

    Just like WritableByteChannel If one thread initiates a write operation upon a channel then any other thread that attempts to initiate another write operation will block until the first operation is complete.
    • Method Summary

      All Methods Instance Methods Abstract Methods Deprecated Methods 
      Modifier and Type Method and Description
      void closeFinally()
      Deprecated. 
      Closes the file.
      int write(java.nio.ByteBuffer src, java.lang.String sequenceKey)
      Deprecated. 
      Writes the data out to FileWriteChannel.
      • Methods inherited from interface java.nio.channels.WritableByteChannel

        write
      • Methods inherited from interface java.nio.channels.Channel

        close, isOpen
    • Method Detail

      • write

        int write(java.nio.ByteBuffer src,
                  java.lang.String sequenceKey)
           throws java.io.IOException
        Deprecated. 
        Writes the data out to FileWriteChannel.
        Throws:
        java.io.IOException
        See Also:
        FileWriteChannel.write(ByteBuffer, String)
      • closeFinally

        void closeFinally()
                   throws java.lang.IllegalStateException,
                          java.io.IOException
        Deprecated. 
        Closes the file.
        Throws:
        java.lang.IllegalStateException
        java.io.IOException
        See Also:
        FileWriteChannel.closeFinally()