| /** | |
| * Compares the two messages for equality, ignoring the XID field. | |
| * | |
| * @param obj the other message to compare | |
| * @return true if the messages are equal, ignoring the XID; false otherwise | |
| */ | |
| boolean equalsIgnoreXid(Object obj); | |
| /** | |
| * Computes the hashcode of the message, ignoring the XID field. | |
| * This can be useful in hashing OFMessages where an OFMessage | |
| * is "the same as" another OFMessage if all fields are equal | |
| * except for possibly the XIDs, which may or may not be equal. | |
| * | |
| * The obvious problem is that existing hash data structure | |
| * implementations will use OFMessage's hashCode() function instead. | |
| * In order to use the functionality of hashCodeIgnoreXid(), one | |
| * must wrap the OFMessage within a user-defined class, where this | |
| * user-defined class is used as the key within a hash data structure, | |
| * e.g. HashMap. The user-defined class' overrideen hashCode() | |
| * function must explicitly invoke hashCodeIgnoreXid() when computing | |
| * the hash of the OFMessage member instead of computing it using | |
| * OFMessage's hashCode(). | |
| * | |
| * @return the hashcode of the message, ignoring the XID | |
| */ | |
| int hashCodeIgnoreXid(); |