File	Doc	Category	Size	Date	Package
ClassID.java	API Doc	Apache Poi 3.0.1	6727	Mon Jan 01 12:39:34 GMT 2007	org.apache.poi.hpsf

ClassID

• java.lang.Object

Fields Summary
protected byte[]	bytes The bytes making out the class ID in correct order, i.e. big-endian.
public static final int	LENGTH The number of bytes occupied by this object in the byte stream.

Constructors Summary
public ClassID(byte[] src, int offset) Creates a {@link ClassID} and reads its value from a byte array. param src The byte array to read from. param offset The offset of the first byte to read. read(src, offset);
public ClassID() Creates a {@link ClassID} and initializes its value with 0x00 bytes. bytes = new byte[LENGTH]; for (int i = 0; i < LENGTH; i++) bytes[i] = 0x00;

Methods Summary
public boolean	equals(java.lang.Object o) Checks whether this ClassID is equal to another object. param o the object to compare this PropertySet with return true if the objects are equal, else false. if (o == null || !(o instanceof ClassID)) return false; final ClassID cid = (ClassID) o; if (bytes.length != cid.bytes.length) return false; for (int i = 0; i < bytes.length; i++) if (bytes[i] != cid.bytes[i]) return false; return true;
public byte[]	getBytes() Gets the bytes making out the class ID. They are returned in correct order, i.e. big-endian. return the bytes making out the class ID. return bytes;
public int	hashCode() see Object#hashCode() return new String(bytes).hashCode();
public int	length() return The number of bytes occupied by this object in the byte stream. return LENGTH;
public byte[]	read(byte[] src, int offset) Reads the class ID's value from a byte array by turning little-endian into big-endian. param src The byte array to read from param offset The offset within the src byte array return A byte array containing the class ID. bytes = new byte[16]; /* Read double word. */ bytes[0] = src[3 + offset]; bytes[1] = src[2 + offset]; bytes[2] = src[1 + offset]; bytes[3] = src[0 + offset]; /* Read first word. */ bytes[4] = src[5 + offset]; bytes[5] = src[4 + offset]; /* Read second word. */ bytes[6] = src[7 + offset]; bytes[7] = src[6 + offset]; /* Read 8 bytes. */ for (int i = 8; i < 16; i++) bytes[i] = src[i + offset]; return bytes;
public void	setBytes(byte[] bytes) Sets the bytes making out the class ID. param bytes The bytes making out the class ID in big-endian format. They are copied without their order being changed. for (int i = 0; i < this.bytes.length; i++) this.bytes[i] = bytes[i];
public java.lang.String	toString() Returns a human-readable representation of the Class ID in standard format "{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}". return String representation of the Class ID represented by this object. StringBuffer sbClassId = new StringBuffer(38); sbClassId.append('{"); for (int i = 0; i < 16; i++) { sbClassId.append(HexDump.toHex(bytes[i])); if (i == 3 || i == 5 || i == 7 || i == 9) sbClassId.append('-"); } sbClassId.append('}"); return sbClassId.toString();
public void	write(byte[] dst, int offset) Writes the class ID to a byte array in the little-endian format. param dst The byte array to write to. param offset The offset within the dst byte array. exception ArrayStoreException if there is not enough room for the class ID 16 bytes in the byte array after the offset position. /* Check array size: */ if (dst.length < 16) throw new ArrayStoreException ("Destination byte[] must have room for at least 16 bytes, " + "but has a length of only " + dst.length + "."); /* Write double word. */ dst[0 + offset] = bytes[3]; dst[1 + offset] = bytes[2]; dst[2 + offset] = bytes[1]; dst[3 + offset] = bytes[0]; /* Write first word. */ dst[4 + offset] = bytes[5]; dst[5 + offset] = bytes[4]; /* Write second word. */ dst[6 + offset] = bytes[7]; dst[7 + offset] = bytes[6]; /* Write 8 bytes. */ for (int i = 8; i < 16; i++) dst[i + offset] = bytes[i];