libenchao commented on code in PR #2932:
URL: https://github.com/apache/calcite/pull/2932#discussion_r1070270379
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core/src/main/java/org/apache/calcite/rel/externalize/RelJson.java:
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@@ -122,10 +127,32 @@ public RelJson withInputTranslator(InputTranslator
inputTranslator) {
return new RelJson(jsonBuilder, inputTranslator);
}
+ /** Returns a RelJson with a given RelJsonReader. */
+ @SuppressWarnings("initialization.invalid.field.write.initialized")
+ public RelJson withRelJsonReader(@UnknownInitialization RelJsonReader
relJsonReader) {
+ this.relJsonReader = relJsonReader;
+ return this;
+ }
+
+ /** Returns a RelJson with a given RelJsonWriter. */
+ @SuppressWarnings("initialization.invalid.field.write.initialized")
+ public RelJson withRelJsonWriter(@UnknownInitialization RelJsonWriter
relJsonWriter) {
+ this.relJsonWriter = relJsonWriter;
+ return this;
+ }
+
private JsonBuilder jsonBuilder() {
return requireNonNull(jsonBuilder, "jsonBuilder");
}
+ private RelJsonWriter relJsonWriter() {
+ return requireNonNull(relJsonWriter, "relJsonWriter");
+ }
+
+ private RelJsonReader relJsonReader() {
Review Comment:
Because there is a `RelNode` in `RexSubQuery`, to serialize/deserialize a
`RelNode`, we need to use `RelJsonWriter` and `RelJsonReader`.
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