arina-ielchiieva commented on a change in pull request #1988: DRILL-7590:
Refactor plugin registry
URL: https://github.com/apache/drill/pull/1988#discussion_r383950429
##########
File path:
logical/src/main/java/org/apache/drill/common/logical/data/LogicalOperatorBase.java
##########
@@ -20,21 +20,18 @@
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
-import java.util.Set;
import org.apache.drill.common.graph.GraphVisitor;
import org.apache.drill.common.logical.ValidationError;
-import org.apache.drill.common.scanner.persistence.ScanResult;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.annotation.JsonProperty;
public abstract class LogicalOperatorBase implements LogicalOperator{
- static final org.slf4j.Logger logger =
org.slf4j.LoggerFactory.getLogger(LogicalOperatorBase.class);
- private List<LogicalOperator> children = new ArrayList<LogicalOperator>();
+ private final List<LogicalOperator> children = new
ArrayList<LogicalOperator>();
Review comment:
```suggestion
private final List<LogicalOperator> children = new ArrayList<>();
```
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