[iotdb] branch master updated: Add the method size() to Row in UDF (#2897)

[qi...@apache.org]

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qiaojialin pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/iotdb.git


The following commit(s) were added to refs/heads/master by this push:
     new 952a180  Add the method size() to Row in UDF (#2897)
952a180 is described below

commit 952a180c6cebfc88dd72e4462ab37212b8b2b9f9
Author: Haoyu Wang <37...@users.noreply.github.com>
AuthorDate: Thu Mar 25 19:26:18 2021 +0800

    Add the method size() to Row in UDF (#2897)
---
 .gitignore                                                         | 2 +-
 .../main/java/org/apache/iotdb/db/query/udf/api/access/Row.java    | 7 +++++++
 .../java/org/apache/iotdb/db/query/udf/core/access/RowImpl.java    | 5 +++++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index a136207..f6ad96b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -99,4 +99,4 @@ classes/
 ### Cmake files ###
 *.cmake
 Makefile
-**/CMakeFiles/
+**/CMakeFiles/
\ No newline at end of file
diff --git a/server/src/main/java/org/apache/iotdb/db/query/udf/api/access/Row.java b/server/src/main/java/org/apache/iotdb/db/query/udf/api/access/Row.java
index 0eefdc5..5939a5d 100644
--- a/server/src/main/java/org/apache/iotdb/db/query/udf/api/access/Row.java
+++ b/server/src/main/java/org/apache/iotdb/db/query/udf/api/access/Row.java
@@ -118,4 +118,11 @@ public interface Row {
    * @return {@code true} if the value of the specified column is null
    */
   boolean isNull(int columnIndex);
+
+  /**
+   * Returns the number of columns
+   *
+   * @return the number of columns
+   */
+  int size();
 }
diff --git a/server/src/main/java/org/apache/iotdb/db/query/udf/core/access/RowImpl.java b/server/src/main/java/org/apache/iotdb/db/query/udf/core/access/RowImpl.java
index 39f38eb..e186200 100644
--- a/server/src/main/java/org/apache/iotdb/db/query/udf/core/access/RowImpl.java
+++ b/server/src/main/java/org/apache/iotdb/db/query/udf/core/access/RowImpl.java
@@ -89,4 +89,9 @@ public class RowImpl implements Row {
     this.rowRecord = rowRecord;
     return this;
   }
+
+  @Override
+  public int size() {
+    return this.columnIndexes.length;
+  }
 }