java.util.zip

Class CheckedOutputStream

  • All Implemented Interfaces:
    Closeable, Flushable, AutoCloseable 

    public class CheckedOutputStream
extends FilterOutputStream
    An output stream that also maintains a checksum of the data being written. The checksum can then be used to verify the integrity of the output data.
    See Also:
    Checksum

    • Constructor Detail

      • CheckedOutputStream

        public CheckedOutputStream(OutputStream out,
                           Checksum cksum)
        Creates an output stream with the specified Checksum.
        Parameters:
        out - the output stream
        cksum - the checksum

    • Method Detail

      • write

        public void write(int b)
           throws IOException
        Writes a byte. Will block until the byte is actually written.
        Overrides:
        write in class  FilterOutputStream
        Parameters:
        b - the byte to be written
        Throws:
        IOException - if an I/O error has occurred

      • write

        public void write(byte[] b,
                  int off,
                  int len)
           throws IOException
        Writes an array of bytes. Will block until the bytes are actually written.
        Overrides:
        write in class  FilterOutputStream
        Parameters:
        b - the data to be written
        off - the start offset of the data
        len - the number of bytes to be written
        Throws:
        IOException - if an I/O error has occurred
        See Also:
        FilterOutputStream.write(int)

      • getChecksum

        public Checksum getChecksum()
        Returns the Checksum for this output stream.
        Returns:
        the Checksum