/** @see BTmsg#writeExternal(java.io.ObjectOutput) */
@Override
public void writeExternal(ObjectOutput out) throws IOException {
super.writeExternal(out);
assert this.offset < Short.MAX_VALUE;
out.writeShort(this.offset);
assert this.nbrAssignments < Short.MAX_VALUE;
out.writeShort(this.nbrAssignments);
V val = this.assignments[this.offset][0];
out.writeObject(val); // first assignment
final boolean externalize = val.externalize();
// Write the assignments one by one
for (int i = this.offset; i < this.nbrAssignments; i++) { // the assignments
V[] assignment = this.assignments[i];
assert assignment.length < Short.MAX_VALUE;
out.writeShort(assignment.length);
for (int j = assignment.length - 1; j >= 0; j--) {
if (externalize) assignment[j].writeExternal(out);
else out.writeObject(assignment[j]);
}
}
out.writeObject(this.cost);
}
/** @see BTmsg#readExternal(java.io.ObjectInput) */
@SuppressWarnings("unchecked")
@Override
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
super.readExternal(in);
// Read the number of assignments and the assignment to the first variable
// so that we can instantiate the array of assignments
this.offset = in.readShort();
this.nbrAssignments = in.readShort();
V val = (V) in.readObject();
this.assignments =
(V[][]) Array.newInstance(Array.newInstance(val.getClass(), 0).getClass(), nbrAssignments);
final boolean externalize = val.externalize();
// Read the assignments one by one
for (int i = this.offset; i < this.nbrAssignments; i++) {
short nbrVars = in.readShort();
V[] assignment = (V[]) Array.newInstance(val.getClass(), nbrVars);
this.assignments[i] = assignment;
for (int j = nbrVars - 1; j >= 0; j--) {
if (externalize) {
val = val.getZero();
val.readExternal(in);
assignment[j] = (V) val.readResolve();
} else assignment[j] = (V) in.readObject();
}
}
this.cost = (U) in.readObject();
}
