Class ByteField

src/java/org/apache/poi/util/ByteField.java:34–224

representation of a byte (8-bit) field at a fixed location within a byte array @author Marc Johnson (mjohnson at apache dot org

 */

public class ByteField
    implements FixedField
{
    private static final byte _default_value = 0;
    private byte              _value;
    private final int         _offset;

    /**
     * construct the ByteField with its offset into its containing
     * byte array and a default value of 0
     *
     * @param offset of the field within its byte array
     *
     * @exception ArrayIndexOutOfBoundsException if offset is negative
     */

    public ByteField(final int offset)
        throws ArrayIndexOutOfBoundsException
    {
        this(offset, _default_value);
    }

    /**
     * construct the ByteField with its offset into its containing
     * byte array and initialize its value
     *
     * @param offset of the field within its byte array
     * @param value the initial value
     *
     * @exception ArrayIndexOutOfBoundsException if offset is negative
     */

    public ByteField(final int offset, final byte value)
        throws ArrayIndexOutOfBoundsException
    {
        if (offset < 0)
        {
            throw new ArrayIndexOutOfBoundsException(
                "offset cannot be negative");
        }
        _offset = offset;
        set(value);
    }

    /**
     * Construct the ByteField with its offset into its containing
     * byte array and initialize its value from its byte array
     *
     * @param offset of the field within its byte array
     * @param data the byte array to read the value from
     *
     * @exception ArrayIndexOutOfBoundsException if the offset is not
     *            within the range of 0..(data.length - 1)
     */

    public ByteField(final int offset, final byte [] data)
        throws ArrayIndexOutOfBoundsException
    {