java.util.zip

Class GZIPOutputStream

Table des matières

    • Field Summary

      Fields 
      Modifier and Type Field and Description
      protected CRC32 crc
      CRC-32 of uncompressed data.

        

      • Fields inherited from class java.util.zip.DeflaterOutputStream

        buf, def

      • Fields inherited from class java.io.FilterOutputStream

        out

    • Method Summary

      Methods 
      Modifier and Type Method and Description
      void finish()
      Finishes writing compressed data to the output stream without closing the underlying stream.
      void write(byte[] buf, int off, int len)
      Writes array of bytes to the compressed output stream.

        

      • Methods inherited from class java.io.FilterOutputStream

        write

    • Field Detail

      • crc

        protected CRC32 crc
        CRC-32 of uncompressed data.

    • Constructor Detail

      • GZIPOutputStream

        public GZIPOutputStream(OutputStream out,
                int size)
                 throws IOException
        Creates a new output stream with the specified buffer size.

        The new output stream instance is created as if by invoking the 3-argument constructor GZIPOutputStream(out, size, false).

        Parameters:
        out - the output stream
        size - the output buffer size
        Throws:
        IOException - If an I/O error has occurred.
        IllegalArgumentException - if size is <= 0

      • GZIPOutputStream

        public GZIPOutputStream(OutputStream out,
                int size,
                boolean syncFlush)
                 throws IOException
        Creates a new output stream with the specified buffer size and flush mode.
        Parameters:
        out - the output stream
        size - the output buffer size
        syncFlush - if true invocation of the inherited flush() method of this instance flushes the compressor with flush mode Deflater.SYNC_FLUSH before flushing the output stream, otherwise only flushes the output stream
        Throws:
        IOException - If an I/O error has occurred.
        IllegalArgumentException - if size is <= 0
        Since:
        1.7

      • GZIPOutputStream

        public GZIPOutputStream(OutputStream out)
                 throws IOException
        Creates a new output stream with a default buffer size.

        The new output stream instance is created as if by invoking the 2-argument constructor GZIPOutputStream(out, false).

        Parameters:
        out - the output stream
        Throws:
        IOException - If an I/O error has occurred.

      • GZIPOutputStream

        public GZIPOutputStream(OutputStream out,
                boolean syncFlush)
                 throws IOException
        Creates a new output stream with a default buffer size and the specified flush mode.
        Parameters:
        out - the output stream
        syncFlush - if true invocation of the inherited flush() method of this instance flushes the compressor with flush mode Deflater.SYNC_FLUSH before flushing the output stream, otherwise only flushes the output stream
        Throws:
        IOException - If an I/O error has occurred.
        Since:
        1.7

    • Method Detail

      • write

        public void write(byte[] buf,
         int off,
         int len)
           throws IOException
        Writes array of bytes to the compressed output stream. This method will block until all the bytes are written.
        Overrides:
        write in class DeflaterOutputStream
        Parameters:
        buf - the data to be written
        off - the start offset of the data
        len - the length of the data
        Throws:
        IOException - If an I/O error has occurred.
        See Also:
        FilterOutputStream.write(int)

      • finish

        public void finish()
            throws IOException
        Finishes writing compressed data to the output stream without closing the underlying stream. Use this method when applying multiple filters in succession to the same output stream.
        Overrides:
        finish in class DeflaterOutputStream
        Throws:
        IOException - if an I/O error has occurred

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Document créé le 30/08/2006, dernière modification le 04/03/2020
Source du document imprimé : https://www.gaudry.be/java-api-rf-java/util/zip/GZIPOutputStream.html

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