dawidwys commented on a change in pull request #9937: [FLINK-14416][table] Add 
Module interface and ModuleManager
URL: https://github.com/apache/flink/pull/9937#discussion_r338446056
 
 

 ##########
 File path: 
flink-table/flink-table-api-java-bridge/src/main/java/org/apache/flink/table/api/java/internal/StreamTableEnvironmentImpl.java
 ##########
 @@ -104,7 +106,9 @@ public static StreamTableEnvironment create(
                        settings.getBuiltInCatalogName(),
                        new 
GenericInMemoryCatalog(settings.getBuiltInCatalogName(), 
settings.getBuiltInDatabaseName()));
 
-               FunctionCatalog functionCatalog = new 
FunctionCatalog(catalogManager);
+               ModuleManager moduleManager = new ModuleManager();
+
+               FunctionCatalog functionCatalog = new 
FunctionCatalog(catalogManager, moduleManager);
 
 Review comment:
   Comment to the original comment.
   
   Yes this is a repeated pattern, because this is the good coding guideline 
approved by the Flink community: 
https://flink.apache.org/contributing/code-style-and-quality-common.html#design-for-testability.
   
   Creating objects within constructors is an anti-pattern that the Flink 
community highly discourages.

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