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Java Standard Edition (SE)

DeflaterOutputStream


compact1, compact2, compact3
java.util.zip

Class DeflaterOutputStream

    • Field Detail

      • def

        protected Deflater def
        Compressor for this stream.
      • buf

        protected byte[] buf
        Output buffer for writing compressed data.
    • Constructor Detail

      • DeflaterOutputStream

        public DeflaterOutputStream(OutputStream out,
                                    Deflater def,
                                    int size,
                                    boolean syncFlush)
        Creates a new output stream with the specified compressor, buffer size and flush mode.
        Parameters:
        out - the output stream
        def - the compressor ("deflater")
        size - the output buffer size
        syncFlush - if true the 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:
        IllegalArgumentException - if size <= 0
        Since:
        1.7
      • DeflaterOutputStream

        public DeflaterOutputStream(OutputStream out,
                                    Deflater def,
                                    int size)
        Creates a new output stream with the specified compressor and buffer size.

        The new output stream instance is created as if by invoking the 4-argument constructor DeflaterOutputStream(out, def, size, false).

        Parameters:
        out - the output stream
        def - the compressor ("deflater")
        size - the output buffer size
        Throws:
        IllegalArgumentException - if size <= 0
      • DeflaterOutputStream

        public DeflaterOutputStream(OutputStream out,
                                    Deflater def,
                                    boolean syncFlush)
        Creates a new output stream with the specified compressor, flush mode and a default buffer size.
        Parameters:
        out - the output stream
        def - the compressor ("deflater")
        syncFlush - if true the 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
        Since:
        1.7
      • DeflaterOutputStream

        public DeflaterOutputStream(OutputStream out,
                                    Deflater def)
        Creates a new output stream with the specified compressor and a default buffer size.

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

        Parameters:
        out - the output stream
        def - the compressor ("deflater")
      • DeflaterOutputStream

        public DeflaterOutputStream(OutputStream out,
                                    boolean syncFlush)
        Creates a new output stream with a default compressor, a default buffer size and the specified flush mode.
        Parameters:
        out - the output stream
        syncFlush - if true the 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
        Since:
        1.7
      • DeflaterOutputStream

        public DeflaterOutputStream(OutputStream out)
        Creates a new output stream with a default compressor and buffer size.

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

        Parameters:
        out - the output stream
    • Method Detail

      • write

        public void write(int b)
                   throws IOException
        Writes a byte to the compressed output stream. This method will block until the byte can be 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 to the compressed output stream. This method will block until all the bytes are written.
        Overrides:
        write in class FilterOutputStream
        Parameters:
        b - 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.
        Throws:
        IOException - if an I/O error has occurred
      • deflate

        protected void deflate()
                        throws IOException
        Writes next block of compressed data to the output stream.
        Throws:
        IOException - if an I/O error has occurred
      • flush

        public void flush()
                   throws IOException
        Flushes the compressed output stream. If syncFlush is true when this compressed output stream is constructed, this method first flushes the underlying compressor with the flush mode Deflater.SYNC_FLUSH to force all pending data to be flushed out to the output stream and then flushes the output stream. Otherwise this method only flushes the output stream without flushing the compressor.
        Specified by:
        flush in interface Flushable
        Overrides:
        flush in class FilterOutputStream
        Throws:
        IOException - if an I/O error has occurred
        Since:
        1.7
        See Also:
        FilterOutputStream.out


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