File	Doc	Category	Size	Date	Package
Blob.java	API Doc	Android 1.5 API	6145	Wed May 06 22:41:06 BST 2009	SQLite

BlobR

• java.lang.Object
  • java.io.InputStream

Fields Summary
private Blob	blob Blob instance
private int	pos Read position, file pointer.

Constructors Summary
BlobR(Blob blob) Contruct InputStream from blob instance. this.blob = blob; this.pos = 0;

Methods Summary
public int	available() Return number of available bytes for reading. return available input bytes int ret = blob.size - pos; return (ret < 0) ? 0 : ret;
public void	close() Close this blob InputStream. blob.close(); blob = null; pos = 0;
public void	mark(int limit) Mark method; dummy to satisfy InputStream class.
public boolean	markSupported() Mark support; not for this class. return always false return false;
public int	read(byte[] b, int off, int len) Read slice of byte array from blob. param b byte array to be filled param off offset into byte array param len length to be read return number of bytes read if (off + len > b.length) { len = b.length - off; } if (len < 0) { return -1; } if (len == 0) { return 0; } int n = blob.read(b, off, pos, len); if (n > 0) { pos += n; return n; } return -1;
public int	read() Read single byte from blob. return byte read byte b[] = new byte[1]; int n = blob.read(b, 0, pos, b.length); if (n > 0) { pos += n; return b[0]; } return -1;
public int	read(byte[] b) Read byte array from blob. param b byte array to be filled return number of bytes read int n = blob.read(b, 0, pos, b.length); if (n > 0) { pos += n; return n; } return -1;
public void	reset() Reset method; dummy to satisfy InputStream class.
public long	skip(long n) Skip over blob data. long ret = pos + n; if (ret < 0) { ret = 0; pos = 0; } else if (ret > blob.size) { ret = blob.size; pos = blob.size; } else { pos = (int) ret; } return ret;