jerryshao commented on code in PR #4090:
URL: https://github.com/apache/gravitino/pull/4090#discussion_r1666763848
##########
core/src/main/java/com/datastrato/gravitino/catalog/SchemaDispatcher.java:
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@@ -26,4 +26,26 @@
* to dispatching or handling schema-related events or actions that are not
covered by the standard
* {@code SupportsSchemas} operations.
*/
-public interface SchemaDispatcher extends SupportsSchemas {}
+public interface SchemaDispatcher extends SupportsSchemas {
+
+ /**
+ * Wraps the given {@link SchemaOperationDispatcher} with additional
behaviors or operations. This
+ * method returns the same {@link SchemaOperationDispatcher} passed as a
parameter to allow for
+ * chainable method calls. For example:
dispatcherA.wrap(dispatcherB).wrap(dispatcherC)
+ *
+ * @param operationDispatcher The {@link SchemaOperationDispatcher} to wrap.
This is the object
+ * that additional behaviors are applied to. It should not be {@code
null}.
+ * @return The same {@link SchemaOperationDispatcher} instance passed in as
the parameter.
+ */
+ default SchemaDispatcher wrap(SchemaDispatcher operationDispatcher) {
+ return operationDispatcher;
+ }
+
+ /**
+ * Returns a {@link SchemaDispatcher} that delegates the schema operations
to the previously
+ * wrapped {@link SchemaOperationDispatcher}.
+ *
+ * @return The {@link SchemaDispatcher} to delegate the schema operations to.
+ */
+ SchemaDispatcher delegate();
Review Comment:
Can you give me an example to how to use it, to extend to add more methods
that are not defined in `SupportsScheams`？
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