[jira] [Created] (CALCITE-4884) Provide a new constructor for RelJsonWriter to allow customized JsonBuilder

["Chunwei Lei (Jira)" <ji...@apache.org>]

Chunwei Lei created CALCITE-4884:
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             Summary: Provide a new constructor for RelJsonWriter to allow customized JsonBuilder
                 Key: CALCITE-4884
                 URL: https://issues.apache.org/jira/browse/CALCITE-4884
             Project: Calcite
          Issue Type: Improvement
            Reporter: Chunwei Lei


Currently JsonBuilder in RelJsonWriter cannot be customized due to it being created in the constructor.  We can provide a new constructor for RelJsonWriter to allow customized JsonBuilder.
{code:java}
// code placeholder
public RelJsonWriter() {
  jsonBuilder = new JsonBuilder();
  relList = jsonBuilder.list();
  relJson = new RelJson(jsonBuilder);
}

// the new constrctor suggested.
public RelJsonWriter(JsonBuilder jsonBuilder) {
  this.jsonBuilder = jsonBuilder;
  relList = jsonBuilder.list();
  relJson = new RelJson(jsonBuilder);
}
{code}



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