Package net.sourceforge.jtds.util

Class BlobBuffer.BlobInputStream

  • All Implemented Interfaces:
    java.io.Closeable, java.lang.AutoCloseable
    Enclosing class:
    BlobBuffer
    private class BlobBuffer.BlobInputStream
extends java.io.InputStream
    An InputStream over the BLOB buffer.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private boolean open  
      private int readPtr  

    • Constructor Summary

      Constructors 
      Constructor Description
      BlobInputStream​(long pos)
      Costructs an InputStream object over the BLOB buffer.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int available()
      Returns the number of bytes available to read.
      void close()
      Closes the output stream.
      protected void finalize()
      Ensures underlying BLOB file can be closed even if user does not close this stream.
      int read()
      Reads the next byte from the stream.
      int read​(byte[] bytes, int offset, int len)
      Reads a bytes from the stream.

      • Methods inherited from class java.io.InputStream

        mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, reset, skip, transferTo

      • Methods inherited from class java.lang.Object

        clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • readPtr

        private int readPtr

      • open

        private boolean open

    • Constructor Detail

      • BlobInputStream

        public BlobInputStream​(long pos)
                throws java.io.IOException
        Costructs an InputStream object over the BLOB buffer.
        Parameters:
        pos - the starting position (from 0)
        Throws:
        java.io.IOException - if an I/O error occurs

    • Method Detail

      • finalize

        protected void finalize()
                 throws java.lang.Throwable
        Ensures underlying BLOB file can be closed even if user does not close this stream.
        Overrides:
        finalize in class java.lang.Object
        Throws:
        java.lang.Throwable

      • available

        public int available()
              throws java.io.IOException
        Returns the number of bytes available to read.
        Overrides:
        available in class java.io.InputStream
        Throws:
        java.io.IOException - if an I/O error occurs

      • read

        public int read()
         throws java.io.IOException
        Reads the next byte from the stream.
        Specified by:
        read in class java.io.InputStream
        Returns:
        the next byte as an int or -1 if at EOF
        Throws:
        java.io.IOException - if an I/O error occurs

      • read

        public int read​(byte[] bytes,
                int offset,
                int len)
         throws java.io.IOException
        Reads a bytes from the stream.
        Overrides:
        read in class java.io.InputStream
        Parameters:
        bytes - the byte array to fill
        offset - the start position in the byte array
        len - the number of bytes to read
        Returns:
        the number of bytes read or -1 if at end of file
        Throws:
        java.io.IOException - if an I/O error occurs

      • close

        public void close()
           throws java.io.IOException
        Closes the output stream.
        Specified by:
        close in interface java.lang.AutoCloseable
        Specified by:
        close in interface java.io.Closeable
        Overrides:
        close in class java.io.InputStream
        Throws:
        java.io.IOException - if an I/O error occurs