// Returns true if and only if o1.equals(o2).
public boolean xequal(Iterable<T> o1, Object o2) {
if (o1 == null && o2 == null) {
return true;
}
if (o1 == null || o2 == null) {
return false;
}
if (o1.getClass() != o2.getClass()) {
return false;
}
Iterator<T> iter1 = o1.iterator();
@SuppressWarnings("unchecked")
Iterator<T> iter2 = ((Iterable<T>) o2).iterator();
// - Compare all elements for equality.
while (iter1.hasNext()) {
if (!iter2.hasNext()) {
return false;
}
T elem1 = iter1.next();
T elem2 = iter2.next();
if (!elem1.equals(elem2)) {
return false;
}
}
if (iter2.hasNext()) {
return false;
}
return true;
}
public void setProcessors(Iterable<? extends Processor> processors) {
processors.getClass(); // null check
// not mt-safe
if (used.get()) throw new IllegalStateException();
this.processors = processors;
}
public static <T> String stringValueOfItem(Iterable<T> iterable, T item) {
return item == iterable
? "(this " + iterable.getClass().getSimpleName() + ')'
: String.valueOf(item);
}
