WencongLiu commented on code in PR #23026:
URL: https://github.com/apache/flink/pull/23026#discussion_r1283910488


##########
flink-examples/flink-examples-batch/pom.xml:
##########
@@ -48,25 +48,6 @@ under the License.
        
        <build>
                <plugins>
-                       <!-- Fail compilation on deprecation warnings to 
prevent from showing users outdated examples. -->
-                       <plugin>
-                               <groupId>org.apache.maven.plugins</groupId>
-                               <artifactId>maven-compiler-plugin</artifactId>
-                               <executions>
-                                       <execution>
-                                               <id>compile</id>
-                                               <phase>process-sources</phase>
-                                               <goals>
-                                                       <goal>compile</goal>
-                                               </goals>
-                                               <configuration>
-                                                       
<compilerArgument>-Xlint:deprecation</compilerArgument>
-                                                       
<failOnWarning>true</failOnWarning>
-                                               </configuration>
-                                       </execution>
-                               </executions>
-                       </plugin>
-                       

Review Comment:
   1. The classes in `flink-examples-batch` module is still utilized for 
testing purpose. I have added the warning log in all batch example classes to 
remind the developer that the DataSet API is deprecated. I also have added the 
note to `bin.xml` in `flink-disk` module to explain the batch examples in 
example package is only for tests.
   
   2. I have created an issue 
[FLINK-32741](https://issues.apache.org/jira/browse/FLINK-32741) to track the 
removal of DataSet related documentations. Currently the issue is assigned to 
@pegasas .
   



##########
flink-core/src/main/java/org/apache/flink/api/common/ExecutionConfig.java:
##########
@@ -556,7 +556,14 @@ public void setExecutionMode(ExecutionMode executionMode) {
      * <p>The default execution mode is {@link ExecutionMode#PIPELINED}.
      *
      * @return The execution mode for the program.
+     * @deprecated All Flink DataSet APIs are deprecated since Flink 1.18 and 
will be removed in a
+     *     future Flink major version. You can still build your application in 
DataSet, but you
+     *     should move to either the DataStream and/or Table API.
+     * @see <a 
href="https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=158866741";>
+     *     FLIP-131: Consolidate the user-facing Dataflow SDKs/APIs (and 
deprecate the DataSet
+     *     API</a>
      */
+    @Deprecated

Review Comment:
   1. `ExecutionMode` and `setExecutionMode ` are both deprecated.
   2. The class JavaDoc of execution mode is updated.



##########
flink-core/src/main/java/org/apache/flink/api/common/ExecutionConfig.java:
##########
@@ -913,6 +920,18 @@ public LinkedHashSet<Class<?>> getRegisteredPojoTypes() {
         return registeredPojoTypes;
     }
 
+    /**
+     * Get if the auto type registration is disabled.
+     *
+     * @return if the auto type registration is disabled.
+     * @deprecated All Flink DataSet APIs are deprecated since Flink 1.18 and 
will be removed in a
+     *     future Flink major version. You can still build your application in 
DataSet, but you
+     *     should move to either the DataStream and/or Table API.
+     * @see <a 
href="https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=158866741";>
+     *     FLIP-131: Consolidate the user-facing Dataflow SDKs/APIs (and 
deprecate the DataSet
+     *     API</a>
+     */
+    @Deprecated

Review Comment:
   Both `disableAutoTypeRegistration ` and `AUTO_TYPE_REGISTRATION ` are 
deprecated.



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