Examples with AstSelectList com.developmentontheedge.sql.model.AstSelectList used on opensource projects

Example 11 with AstSelectList

use of com.developmentontheedge.sql.model.AstSelectList in project be5 by DevelopmentOnTheEdge.

the class ColumnsApplier method keepOnlyOutColumns.

public void keepOnlyOutColumns(AstBeSqlSubQuery subQuery) {
    List<String> outColumns = Arrays.asList(subQuery.getOutColumns().split(","));
    AstSelect select = (AstSelect) subQuery.getQuery().child(0);
    AstSelectList selectList = select.getSelectList();
    if (selectList.isAllColumns()) {
        throw new IllegalStateException("All columns not support " + selectList.getNodeContent());
    } else {
        for (int i = selectList.jjtGetNumChildren() - 1; i >= 0; i--) {
            AstDerivedColumn derivedColumn = (AstDerivedColumn) selectList.jjtGetChild(i);
            if (!outColumns.contains(derivedColumn.getAlias().replace("\"", ""))) {
                derivedColumn.remove();
            }
        }
    }
}