public void setSourceExactlyMetric(SourceExactlyMetric sourceExactlyMetric) {
        this.sourceExactlyMetric = sourceExactlyMetric;
    }
setter for DebeziumSourceFunction to set SourceExactlyMetric
inlong-sort/sort-flink/sort-flink-v1.15/sort-connectors/mongodb-cdc/src/main/java/org/apache/inlong/sort/mongodb/MongoDBConnectorDeserializationSchema.java