/* (non-Javadoc)
* @see com.lexst.db.head.Field#resolve(byte[], int)
*/
@Override
public int resolve(byte[] b, int offset) {
int off = offset;
dataType = b[off];
off += 1;
columnId = Numeric.toShort(b, off, 2);
off += 2;
byte sz = b[off];
off += 1;
byte[] nm = new byte[sz];
System.arraycopy(b, off, nm, 0, sz);
name = new String(nm, 0, nm.length);
off += sz;
indexType = b[off];
off += 1;
allowNull = (b[off] == 1 ? true : false);
off += 1;
function = b[off];
off += 1;
value = Numeric.toLong(b, off, 8);
off += 8;
return off - offset;
}
/* (non-Javadoc)
* @see com.lexst.db.head.Field#build()
*/
@Override
public byte[] build() {
ByteArrayOutputStream buf = new ByteArrayOutputStream(128);
buf.write(dataType); // data type
byte[] b = Numeric.toBytes(columnId);
buf.write(b, 0, b.length); // column id
byte[] bs = name.getBytes();
byte sz = (byte) (bs.length & 0xFF);
buf.write(sz); // name size
buf.write(bs, 0, bs.length); // name bytes
buf.write(indexType); // index type
byte tag = (byte) (allowNull ? 1 : 0);
buf.write(tag); // allow null
buf.write(function); // function type
b = Numeric.toBytes(value);
buf.write(b, 0, b.length); // default value
return buf.toByteArray();
}