Package com.alibaba.druid.sql.ast.expr

Examples of com.alibaba.druid.sql.ast.expr.SQLAllColumnExpr

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        return visit(visitor, (SQLSelectQueryBlock) x);
    }

    public static boolean visit(MappingVisitor visitor, SQLSelectQueryBlock x) {
        if (x.getSelectList().size() == 0) {
            SQLAllColumnExpr expr = new SQLAllColumnExpr();
            SQLSelectItem selectItem = new SQLSelectItem(expr);
            x.getSelectList().add(selectItem);

            expr.setParent(selectItem);
        }

        if (x.getFrom() == null) {
            Entity firstEntity = visitor.getEngine().getFirstEntity(visitor.getContext());
            SQLExprTableSource from = new SQLExprTableSource(new SQLIdentifierExpr(firstEntity.getName()));
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    public SQLExpr expr() throws ParserException {
        if (lexer.token() == Token.STAR) {
            lexer.nextToken();

            return new SQLAllColumnExpr();
        }

        SQLExpr expr = primary();

        if (lexer.token() == Token.COMMA) {
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    public SQLExpr expr() throws ParserException {
        if (lexer.token() == Token.STAR) {
            lexer.nextToken();

            return new SQLAllColumnExpr();
        }

        SQLExpr expr = primary();

        if (lexer.token() == Token.COMMA) {
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    public SQLExpr expr() {
        if (lexer.token() == Token.STAR) {
            lexer.nextToken();

            SQLExpr expr = new SQLAllColumnExpr();

            if (lexer.token() == Token.DOT) {
                lexer.nextToken();
                accept(Token.STAR);
                return new SQLPropertyExpr(expr, "*");
 
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    public SQLExpr expr() {
        if (lexer.token() == Token.STAR) {
            lexer.nextToken();

            SQLExpr expr = new SQLAllColumnExpr();

            if (lexer.token() == Token.DOT) {
                lexer.nextToken();
                accept(Token.STAR);
                return new SQLPropertyExpr(expr, "*");
 
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    public SQLExpr expr() {
        if (lexer.token() == Token.STAR) {
            lexer.nextToken();

            SQLExpr expr = new SQLAllColumnExpr();

            if (lexer.token() == Token.DOT) {
                lexer.nextToken();
                accept(Token.STAR);
                return new SQLPropertyExpr(expr, "*");
 
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            select.setOrderBy(null);

            queryBlock.getSelectList().add(new SQLSelectItem(aggregateExpr, "ROWNUM"));

            DB2SelectQueryBlock countQueryBlock = new DB2SelectQueryBlock();
            countQueryBlock.getSelectList().add(new SQLSelectItem(new SQLAllColumnExpr()));

            countQueryBlock.setFrom(new SQLSubqueryTableSource(select, "XX"));

            countQueryBlock.setWhere(pageCondition);

            return SQLUtils.toSQLString(countQueryBlock, dbType);
        }

        DB2SelectQueryBlock countQueryBlock = new DB2SelectQueryBlock();
        countQueryBlock.getSelectList().add(new SQLSelectItem(new SQLPropertyExpr(new SQLIdentifierExpr("XX"), "*")));
        SQLAggregateExpr aggregateExpr = new SQLAggregateExpr("ROW_NUMBER");
        SQLOrderBy orderBy = select.getOrderBy();
        aggregateExpr.setOver(new SQLOver(orderBy));
        select.setOrderBy(null);
        countQueryBlock.getSelectList().add(new SQLSelectItem(aggregateExpr, "ROWNUM"));

        countQueryBlock.setFrom(new SQLSubqueryTableSource(select, "XX"));

        if (offset <= 0) {
            return SQLUtils.toSQLString(countQueryBlock, dbType);
        }

        DB2SelectQueryBlock offsetQueryBlock = new DB2SelectQueryBlock();
        offsetQueryBlock.getSelectList().add(new SQLSelectItem(new SQLAllColumnExpr()));
        offsetQueryBlock.setFrom(new SQLSubqueryTableSource(new SQLSelect(countQueryBlock), "XXX"));
        offsetQueryBlock.setWhere(pageCondition);

        return SQLUtils.toSQLString(offsetQueryBlock, dbType);
    }
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            select.setOrderBy(null);

            queryBlock.getSelectList().add(new SQLSelectItem(aggregateExpr, "ROWNUM"));

            SQLServerSelectQueryBlock countQueryBlock = new SQLServerSelectQueryBlock();
            countQueryBlock.getSelectList().add(new SQLSelectItem(new SQLAllColumnExpr()));

            countQueryBlock.setFrom(new SQLSubqueryTableSource(select, "XX"));

            countQueryBlock.setWhere(pageCondition);

            return SQLUtils.toSQLString(countQueryBlock, dbType);
        }
       

        SQLServerSelectQueryBlock countQueryBlock = new SQLServerSelectQueryBlock();
        countQueryBlock.getSelectList().add(new SQLSelectItem(new SQLPropertyExpr(new SQLIdentifierExpr("XX"), "*")));

        countQueryBlock.setFrom(new SQLSubqueryTableSource(select, "XX"));
       
        if (offset <= 0) {
            countQueryBlock.setTop(new SQLServerTop(new SQLNumberExpr(count)));
            return SQLUtils.toSQLString(countQueryBlock, dbType);
        }
       
        SQLAggregateExpr aggregateExpr = new SQLAggregateExpr("ROW_NUMBER");
        SQLOrderBy orderBy = select.getOrderBy();
        aggregateExpr.setOver(new SQLOver(orderBy));
        select.setOrderBy(null);
        countQueryBlock.getSelectList().add(new SQLSelectItem(aggregateExpr, "ROWNUM"));

        SQLServerSelectQueryBlock offsetQueryBlock = new SQLServerSelectQueryBlock();
        offsetQueryBlock.getSelectList().add(new SQLSelectItem(new SQLAllColumnExpr()));
        offsetQueryBlock.setFrom(new SQLSubqueryTableSource(new SQLSelect(countQueryBlock), "XXX"));
        offsetQueryBlock.setWhere(pageCondition);

        return SQLUtils.toSQLString(offsetQueryBlock, dbType);
    }
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        if (offset <= 0) {
            return SQLUtils.toSQLString(countQueryBlock, dbType);
        }

        OracleSelectQueryBlock offsetQueryBlock = new OracleSelectQueryBlock();
        offsetQueryBlock.getSelectList().add(new SQLSelectItem(new SQLAllColumnExpr()));
        offsetQueryBlock.setFrom(new SQLSubqueryTableSource(new SQLSelect(countQueryBlock), "XXX"));
        offsetQueryBlock.setWhere(new SQLBinaryOpExpr(new SQLIdentifierExpr("RN"), //
                                                      SQLBinaryOperator.GreaterThan, //
                                                      new SQLNumberExpr(offset)));
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    }

    private static SQLSelectItem createCountItem(String dbType) {
        SQLAggregateExpr countExpr = new SQLAggregateExpr("COUNT");

        countExpr.getArguments().add(new SQLAllColumnExpr());

        SQLSelectItem countItem = new SQLSelectItem(countExpr);
        return countItem;
    }
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Related Classes of com.alibaba.druid.sql.ast.expr.SQLAllColumnExpr

  • com.alibaba.druid.mapping.spi.MappingVisitorUtils
  • com.alibaba.druid.sql.PagerUtils
  • com.alibaba.druid.sql.parser.SQLExprParser
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