Package net.sourceforge.jtds.jdbc

Class BlobImpl

  • All Implemented Interfaces:
    java.sql.Blob
    public class BlobImpl
extends java.lang.Object
implements java.sql.Blob
    An in-memory or disk based representation of binary data.
    Version:
    $Id: BlobImpl.java,v 1.31.2.3 2009-12-30 08:45:34 ickzon Exp $
    Author:
    Brian Heineman, Mike Hutchinson

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private BlobBuffer blobBuffer
      The underlying BlobBuffer.
      private static byte[] EMPTY_BLOB
      0 length byte[] as initial value for empty Blobs.

    • Constructor Summary

      Constructors 
      Constructor Description
      BlobImpl​(JtdsConnection connection)
      Constructs a new empty Blob instance.
      BlobImpl​(JtdsConnection connection, byte[] bytes)
      Constructs a new Blob instance initialized with data.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void free()  
      java.io.InputStream getBinaryStream()  
      java.io.InputStream getBinaryStream​(long pos, long length)  
      byte[] getBytes​(long pos, int length)  
      long length()  
      long position​(byte[] pattern, long start)  
      long position​(java.sql.Blob pattern, long start)  
      java.io.OutputStream setBinaryStream​(long pos)  
      int setBytes​(long pos, byte[] bytes)  
      int setBytes​(long pos, byte[] bytes, int offset, int len)  
      void truncate​(long len)  

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • EMPTY_BLOB

        private static final byte[] EMPTY_BLOB
        0 length byte[] as initial value for empty Blobs.

      • blobBuffer

        private final BlobBuffer blobBuffer
        The underlying BlobBuffer.

    • Constructor Detail

      • BlobImpl

        BlobImpl​(JtdsConnection connection)
        Constructs a new empty Blob instance.
        Parameters:
        connection - a reference to the parent connection object

      • BlobImpl

        BlobImpl​(JtdsConnection connection,
         byte[] bytes)
        Constructs a new Blob instance initialized with data.
        Parameters:
        connection - a reference to the parent connection object
        bytes - the blob object to encapsulate

    • Method Detail

      • getBinaryStream

        public java.io.InputStream getBinaryStream()
                                    throws java.sql.SQLException
        Specified by:
        getBinaryStream in interface java.sql.Blob
        Throws:
        java.sql.SQLException

      • getBytes

        public byte[] getBytes​(long pos,
                       int length)
                throws java.sql.SQLException
        Specified by:
        getBytes in interface java.sql.Blob
        Throws:
        java.sql.SQLException

      • length

        public long length()
            throws java.sql.SQLException
        Specified by:
        length in interface java.sql.Blob
        Throws:
        java.sql.SQLException

      • position

        public long position​(byte[] pattern,
                     long start)
              throws java.sql.SQLException
        Specified by:
        position in interface java.sql.Blob
        Throws:
        java.sql.SQLException

      • position

        public long position​(java.sql.Blob pattern,
                     long start)
              throws java.sql.SQLException
        Specified by:
        position in interface java.sql.Blob
        Throws:
        java.sql.SQLException

      • setBinaryStream

        public java.io.OutputStream setBinaryStream​(long pos)
                                     throws java.sql.SQLException
        Specified by:
        setBinaryStream in interface java.sql.Blob
        Throws:
        java.sql.SQLException

      • setBytes

        public int setBytes​(long pos,
                    byte[] bytes)
             throws java.sql.SQLException
        Specified by:
        setBytes in interface java.sql.Blob
        Throws:
        java.sql.SQLException

      • setBytes

        public int setBytes​(long pos,
                    byte[] bytes,
                    int offset,
                    int len)
             throws java.sql.SQLException
        Specified by:
        setBytes in interface java.sql.Blob
        Throws:
        java.sql.SQLException

      • truncate

        public void truncate​(long len)
              throws java.sql.SQLException
        Specified by:
        truncate in interface java.sql.Blob
        Throws:
        java.sql.SQLException

      • free

        public void free()
          throws java.sql.SQLException
        Specified by:
        free in interface java.sql.Blob
        Throws:
        java.sql.SQLException

      • getBinaryStream

        public java.io.InputStream getBinaryStream​(long pos,
                                           long length)
                                    throws java.sql.SQLException
        Specified by:
        getBinaryStream in interface java.sql.Blob
        Throws:
        java.sql.SQLException