aokolnychyi commented on code in PR #9245:
URL: https://github.com/apache/iceberg/pull/9245#discussion_r1419844248
##########
api/src/main/java/org/apache/iceberg/util/CharSequenceSet.java:
##########
@@ -168,22 +167,29 @@ public void clear() {
}
@Override
- public boolean equals(Object o) {
- if (this == o) {
+ public boolean equals(Object other) {
Review Comment:
See `Set#equals()` and `AbstractSet#equals()` for background.
##########
api/src/main/java/org/apache/iceberg/util/CharSequenceSet.java:
##########
@@ -168,22 +167,29 @@ public void clear() {
}
@Override
- public boolean equals(Object o) {
- if (this == o) {
+ public boolean equals(Object other) {
+ if (this == other) {
return true;
+ } else if (!(other instanceof Set)) {
+ return false;
}
- if (o == null || getClass() != o.getClass()) {
+ Set<?> that = (Set<?>) other;
+
+ if (size() != that.size()) {
return false;
}
- CharSequenceSet that = (CharSequenceSet) o;
- return wrapperSet.equals(that.wrapperSet);
+ try {
+ return containsAll(that);
+ } catch (ClassCastException | NullPointerException unused) {
+ return false;
+ }
}
@Override
public int hashCode() {
- return Objects.hashCode(wrapperSet);
+ return wrapperSet.stream().mapToInt(CharSequenceWrapper::hashCode).sum();
Review Comment:
The `Set` API requires the hash code to be a sum of hash codes of all
elements. See `Set#hashCode()`.
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