public double getDoubleValue() {
		if (DOUBLE != data[DATA_TYPE_OFFSET]) {
			throw new IllegalFieldAccessException();
		}
		BinaryDataBuffer buffer = new BinaryDataBuffer(data);
		return Double.longBitsToDouble(buffer.getLong(DATA_OFFSET));
	}
Get the double value contained with this field.
@return double value
@throws IllegalFieldAccessException if data type is not DOUBLE.
Ghidra/Framework/DB/src/main/java/db/BinaryCodedField.java