dajac commented on code in PR #14418:
URL: https://github.com/apache/kafka/pull/14418#discussion_r1333051894
##
server-common/src/main/java/org/apache/kafka/server/common/TopicIdPartition.java:
##
@@ -14,43 +14,62 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
+package org.apache.kafka.server.common;
-package org.apache.kafka.controller;
-
-import java.util.Objects;
import org.apache.kafka.common.Uuid;
-final class TopicIdPartition {
+/**
+ * Represents a partition using its unique topic Id and partition number.
+ */
+public final class TopicIdPartition {
private final Uuid topicId;
-private final int partitionId;
+private final Integer partitionId;
Review Comment:
Why changing to an Integer? An int seems more appropriate.
##
server-common/src/main/java/org/apache/kafka/server/common/TopicIdPartition.java:
##
@@ -14,43 +14,62 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
+package org.apache.kafka.server.common;
-package org.apache.kafka.controller;
-
-import java.util.Objects;
import org.apache.kafka.common.Uuid;
-final class TopicIdPartition {
+/**
+ * Represents a partition using its unique topic Id and partition number.
+ */
+public final class TopicIdPartition {
private final Uuid topicId;
-private final int partitionId;
+private final Integer partitionId;
-TopicIdPartition(Uuid topicId, int partitionId) {
+public TopicIdPartition(Uuid topicId, int partitionId) {
this.topicId = topicId;
this.partitionId = partitionId;
}
+/**
+ * @return Universally unique Id representing this topic partition.
+ */
public Uuid topicId() {
return topicId;
}
+/**
+ * @return The partition Id.
+ */
public int partitionId() {
return partitionId;
}
@Override
public boolean equals(Object o) {
-if (!(o instanceof TopicIdPartition)) return false;
-TopicIdPartition other = (TopicIdPartition) o;
-return other.topicId.equals(topicId) && other.partitionId ==
partitionId;
+if (this == o) {
Review Comment:
nit: Should we keep the previous implementation for equals, hashCode and
toString? We just want to move the class so we should not change it.
##
server-common/src/main/java/org/apache/kafka/server/common/TopicIdPartition.java:
##
@@ -14,43 +14,62 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
+package org.apache.kafka.server.common;
-package org.apache.kafka.controller;
-
-import java.util.Objects;
import org.apache.kafka.common.Uuid;
-final class TopicIdPartition {
+/**
+ * Represents a partition using its unique topic Id and partition number.
+ */
+public final class TopicIdPartition {
private final Uuid topicId;
-private final int partitionId;
+private final Integer partitionId;
-TopicIdPartition(Uuid topicId, int partitionId) {
+public TopicIdPartition(Uuid topicId, int partitionId) {
this.topicId = topicId;
this.partitionId = partitionId;
}
+/**
+ * @return Universally unique Id representing this topic partition.
+ */
public Uuid topicId() {
return topicId;
}
+/**
+ * @return The partition Id.
+ */
public int partitionId() {
return partitionId;
}
@Override
public boolean equals(Object o) {
-if (!(o instanceof TopicIdPartition)) return false;
-TopicIdPartition other = (TopicIdPartition) o;
-return other.topicId.equals(topicId) && other.partitionId ==
partitionId;
+if (this == o) {
+return true;
+}
+if (o == null || getClass() != o.getClass()) {
+return false;
+}
+TopicIdPartition that = (TopicIdPartition) o;
+return topicId.equals(that.topicId) &&
+partitionId.equals(that.partitionId);
}
@Override
public int hashCode() {
-return Objects.hash(topicId, partitionId);
+final int prime = 31;
+int result = prime + topicId.hashCode();
+result = prime * result + partitionId.hashCode();
+return result;
}
@Override
public String toString() {
-return topicId + ":" + partitionId;
+return "TopicIdPartition(" +
+"topicId=" + topicId +
+", partition=" + partitionId +
+')';
}
-}
+}
Review Comment:
Let's add an empty line at the end of the file as it was.
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