[incubator-iotdb] branch delete_dev1 updated: add hashCode() method

[hxd]

This is an automated email from the ASF dual-hosted git repository.

hxd pushed a commit to branch delete_dev1
in repository https://gitbox.apache.org/repos/asf/incubator-iotdb.git


The following commit(s) were added to refs/heads/delete_dev1 by this push:
     new 014aa86  add hashCode() method
014aa86 is described below

commit 014aa86d034ef5bd6120cacd835df43929f9e9c6
Author: xiangdong huang <saint...@gmail.com>
AuthorDate: Fri Feb 15 14:48:18 2019 +0800

    add hashCode() method
---
 .../java/org/apache/iotdb/db/engine/modification/Deletion.java   | 7 +++++++
 .../org/apache/iotdb/db/engine/modification/Modification.java    | 9 ++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git 
a/iotdb/src/main/java/org/apache/iotdb/db/engine/modification/Deletion.java 
b/iotdb/src/main/java/org/apache/iotdb/db/engine/modification/Deletion.java
index 81d800a..bf59f04 100644
--- a/iotdb/src/main/java/org/apache/iotdb/db/engine/modification/Deletion.java
+++ b/iotdb/src/main/java/org/apache/iotdb/db/engine/modification/Deletion.java
@@ -19,6 +19,8 @@
 
 package org.apache.iotdb.db.engine.modification;
 
+import java.util.Objects;
+
 /**
  * Deletion is a delete operation on a timeseries.
  */
@@ -45,4 +47,9 @@ public class Deletion extends Modification {
     Deletion del = (Deletion) obj;
     return super.equals(obj) && del.timestamp == this.timestamp;
   }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(super.hashCode(), timestamp);
+  }
 }
diff --git 
a/iotdb/src/main/java/org/apache/iotdb/db/engine/modification/Modification.java 
b/iotdb/src/main/java/org/apache/iotdb/db/engine/modification/Modification.java
index 8d0956f..81186a1 100644
--- 
a/iotdb/src/main/java/org/apache/iotdb/db/engine/modification/Modification.java
+++ 
b/iotdb/src/main/java/org/apache/iotdb/db/engine/modification/Modification.java
@@ -19,6 +19,8 @@
 
 package org.apache.iotdb.db.engine.modification;
 
+import java.util.Objects;
+
 /**
  * Modification represents an UPDATE or DELETE operation on a certain 
timeseries.
  */
@@ -28,7 +30,7 @@ public abstract class Modification {
   protected String path;
   protected long versionNum;
 
-  public Modification(Type type, String path, long versionNum) {
+  Modification(Type type, String path, long versionNum) {
     this.type = type;
     this.path = path;
     this.versionNum = versionNum;
@@ -70,4 +72,9 @@ public abstract class Modification {
     return mod.type.equals(this.type) && mod.path.equals(this.path)
             && mod.versionNum == this.versionNum;
   }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(type, path, versionNum);
+  }
 }