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GeezerVison is showing github.com — support custom DeParser by redkale · Pull Request #2013 · JSQLParser/JSqlParser

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@redkale

@redkale redkale commented May 27, 2024

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My requirement scenario is :
sql template "SELECT * FROM user WHERE name = :param_name AND status = :param_status"
where param_name and param_status both is null, need generated sql: "SELECT * FROM user"
where param_name is not null, param_status is null, need generated sql: "SELECT * FROM user WHERE name = ? "
so deParse where expression maybe is empty

deparseDistinctClause、deparseSelectItemsClause、deparseOrderByElementsClause requires two parameters ,
Parameter plainSelect mainly used to determine the current selection. like:

  @Override
  protected void deparseDistinctClause(PlainSelect plainSelect, Distinct distinct) {
    if (this.countSelect != plainSelect) {
        super.deparseDistinctClause(plainSelect, distinct);
    } else {
        super.deparseDistinctClause(plainSelect, this.countDistinct);
    }
}

protected void deparseSelectItemsClause(PlainSelect plainSelect, List<SelectItem<?>> selectItems) {
    if (this.countSelect != plainSelect) {
        super.deparseSelectItemsClause(plainSelect, selectItems);
    } else {
        super.deparseSelectItemsClause(plainSelect, this.countRootSelectItems);
    }
}

protected void deparseOrderByElementsClause(PlainSelect plainSelect, List<OrderByElement> orderByElements) {
    if (this.countSelect != plainSelect) {
        super.deparseOrderByElementsClause(plainSelect, orderByElements);
    } else {
        super.deparseOrderByElementsClause(plainSelect, null);
    }
}

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@redkale
support custom DeParser
27b1326
@redkale

redkale commented May 28, 2024

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@manticore-projects thanks, I resubmitted a request.

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@manticore-projects
manticore-projects merged commit 7479342 into JSQLParser:master May 29, 2024
@redkale redkale mentioned this pull request Jul 2, 2024
Support custom SelectDeParser #2029
Closed
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2 participants

@redkale @manticore-projects
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