Examples with SQLExprImpl com.alibaba.druid.sql.ast.SQLExprImpl used on opensource projects

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Example 6 with SQLExprImpl

use of com.alibaba.druid.sql.ast.SQLExprImpl in project Mycat-Server by MyCATApache.

the class SQLQueryResultHandler method dohandler.

@Override
public String dohandler(SQLStatement statement, SQLSelect sqlselect, SQLObject parent, List param) {
    if (parent.getParent() instanceof SQLBinaryOpExpr) {
        SQLBinaryOpExpr pp = (SQLBinaryOpExpr) parent.getParent();
        SQLExprImpl listExpr = null;
        if (null == param || param.isEmpty()) {
            listExpr = new SQLNullExpr();
        } else {
            listExpr = new SQLListExpr();
            ((SQLListExpr) listExpr).getItems().addAll(param);
        }
        if (pp.getLeft().equals(parent)) {
            pp.setLeft(listExpr);
        } else if (pp.getRight().equals(parent)) {
            pp.setRight(listExpr);
        }
    } else if (parent.getParent() instanceof SQLSelectItem) {
        SQLSelectItem pp = (SQLSelectItem) parent.getParent();
        SQLExprImpl listExpr = null;
        if (null == param || param.isEmpty()) {
            listExpr = new SQLNullExpr();
        } else {
            listExpr = new SQLListExpr();
            ((SQLListExpr) listExpr).getItems().addAll(param);
        }
        pp.setExpr(listExpr);
    } else if (parent.getParent() instanceof SQLSelectGroupByClause) {
        SQLSelectGroupByClause pp = (SQLSelectGroupByClause) parent.getParent();
        List<SQLExpr> items = pp.getItems();
        for (int i = 0; i < items.size(); i++) {
            SQLExpr expr = items.get(i);
            if (expr instanceof SQLQueryExpr && ((SQLQueryExpr) expr).getSubQuery().equals(sqlselect)) {
                SQLExprImpl listExpr = null;
                if (null == param || param.isEmpty()) {
                    listExpr = new SQLNullExpr();
                } else {
                    listExpr = new SQLListExpr();
                    ((SQLListExpr) listExpr).getItems().addAll(param);
                }
                items.set(i, listExpr);
            }
        }
    } else if (parent.getParent() instanceof SQLSelectOrderByItem) {
        SQLSelectOrderByItem orderItem = (SQLSelectOrderByItem) parent.getParent();
        SQLExprImpl listExpr = null;
        if (null == param || param.isEmpty()) {
            listExpr = new SQLNullExpr();
        } else {
            listExpr = new SQLListExpr();
            ((SQLListExpr) listExpr).getItems().addAll(param);
        }
        listExpr.setParent(orderItem);
        orderItem.setExpr(listExpr);
    } else if (parent.getParent() instanceof MySqlSelectQueryBlock) {
        MySqlSelectQueryBlock query = (MySqlSelectQueryBlock) parent.getParent();
        // select * from subtest1 a where (select 1 from subtest3); 这种情况会进入到当前分支.
        // 改写为   select * from subtest1 a where (1); 或  select * from subtest1 a where (null);
        SQLExprImpl listExpr = null;
        if (null == param || param.isEmpty()) {
            listExpr = new SQLNullExpr();
        } else {
            listExpr = new SQLListExpr();
            ((SQLListExpr) listExpr).getItems().addAll(param);
        }
        listExpr.setParent(query);
        query.setWhere(listExpr);
    }
    return statement.toString();
}
Also used : SQLSelectGroupByClause(com.alibaba.druid.sql.ast.statement.SQLSelectGroupByClause) SQLSelectItem(com.alibaba.druid.sql.ast.statement.SQLSelectItem) SQLQueryExpr(com.alibaba.druid.sql.ast.expr.SQLQueryExpr) SQLSelectOrderByItem(com.alibaba.druid.sql.ast.statement.SQLSelectOrderByItem) SQLBinaryOpExpr(com.alibaba.druid.sql.ast.expr.SQLBinaryOpExpr) SQLExprImpl(com.alibaba.druid.sql.ast.SQLExprImpl) SQLNullExpr(com.alibaba.druid.sql.ast.expr.SQLNullExpr) SQLListExpr(com.alibaba.druid.sql.ast.expr.SQLListExpr) MySqlSelectQueryBlock(com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlSelectQueryBlock) SQLExpr(com.alibaba.druid.sql.ast.SQLExpr)

Example 7 with SQLExprImpl

use of com.alibaba.druid.sql.ast.SQLExprImpl in project Mycat_plus by coderczp.

the class SQLQueryResultHandler method dohandler.

@Override
public String dohandler(SQLStatement statement, SQLSelect sqlselect, SQLObject parent, List param) {
    if (parent.getParent() instanceof SQLBinaryOpExpr) {
        SQLBinaryOpExpr pp = (SQLBinaryOpExpr) parent.getParent();
        SQLExprImpl listExpr = null;
        if (null == param || param.isEmpty()) {
            listExpr = new SQLNullExpr();
        } else {
            listExpr = new SQLListExpr();
            ((SQLListExpr) listExpr).getItems().addAll(param);
        }
        if (pp.getLeft().equals(parent)) {
            pp.setLeft(listExpr);
        } else if (pp.getRight().equals(parent)) {
            pp.setRight(listExpr);
        }
    } else if (parent.getParent() instanceof SQLSelectItem) {
        SQLSelectItem pp = (SQLSelectItem) parent.getParent();
        SQLExprImpl listExpr = null;
        if (null == param || param.isEmpty()) {
            listExpr = new SQLNullExpr();
        } else {
            listExpr = new SQLListExpr();
            ((SQLListExpr) listExpr).getItems().addAll(param);
        }
        pp.setExpr(listExpr);
    } else if (parent.getParent() instanceof SQLSelectGroupByClause) {
        SQLSelectGroupByClause pp = (SQLSelectGroupByClause) parent.getParent();
        List<SQLExpr> items = pp.getItems();
        for (int i = 0; i < items.size(); i++) {
            SQLExpr expr = items.get(i);
            if (expr instanceof SQLQueryExpr && ((SQLQueryExpr) expr).getSubQuery().equals(sqlselect)) {
                SQLExprImpl listExpr = null;
                if (null == param || param.isEmpty()) {
                    listExpr = new SQLNullExpr();
                } else {
                    listExpr = new SQLListExpr();
                    ((SQLListExpr) listExpr).getItems().addAll(param);
                }
                items.set(i, listExpr);
            }
        }
    } else if (parent.getParent() instanceof SQLSelectOrderByItem) {
        SQLSelectOrderByItem orderItem = (SQLSelectOrderByItem) parent.getParent();
        SQLExprImpl listExpr = null;
        if (null == param || param.isEmpty()) {
            listExpr = new SQLNullExpr();
        } else {
            listExpr = new SQLListExpr();
            ((SQLListExpr) listExpr).getItems().addAll(param);
        }
        listExpr.setParent(orderItem);
        orderItem.setExpr(listExpr);
    } else if (parent.getParent() instanceof MySqlSelectQueryBlock) {
        MySqlSelectQueryBlock query = (MySqlSelectQueryBlock) parent.getParent();
        // select * from subtest1 a where (select 1 from subtest3); 这种情况会进入到当前分支.
        // 改写为   select * from subtest1 a where (1); 或  select * from subtest1 a where (null);
        SQLExprImpl listExpr = null;
        if (null == param || param.isEmpty()) {
            listExpr = new SQLNullExpr();
        } else {
            listExpr = new SQLListExpr();
            ((SQLListExpr) listExpr).getItems().addAll(param);
        }
        listExpr.setParent(query);
        query.setWhere(listExpr);
    }
    return statement.toString();
}
Also used : SQLSelectGroupByClause(com.alibaba.druid.sql.ast.statement.SQLSelectGroupByClause) SQLSelectItem(com.alibaba.druid.sql.ast.statement.SQLSelectItem) SQLQueryExpr(com.alibaba.druid.sql.ast.expr.SQLQueryExpr) SQLSelectOrderByItem(com.alibaba.druid.sql.ast.statement.SQLSelectOrderByItem) SQLBinaryOpExpr(com.alibaba.druid.sql.ast.expr.SQLBinaryOpExpr) SQLExprImpl(com.alibaba.druid.sql.ast.SQLExprImpl) SQLNullExpr(com.alibaba.druid.sql.ast.expr.SQLNullExpr) SQLListExpr(com.alibaba.druid.sql.ast.expr.SQLListExpr) MySqlSelectQueryBlock(com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlSelectQueryBlock) SQLExpr(com.alibaba.druid.sql.ast.SQLExpr)

Example 8 with SQLExprImpl

use of com.alibaba.druid.sql.ast.SQLExprImpl in project Mycat-Server by MyCATApache.

the class InSubQueryResultHandler method dohandler.

@Override
public String dohandler(SQLStatement statement, SQLSelect sqlselect, SQLObject parent, List param) {
    SQLExprImpl inlistExpr = null;
    if (null == param || param.isEmpty()) {
        inlistExpr = new SQLNullExpr();
    } else {
        inlistExpr = new SQLInListExpr();
        ((SQLInListExpr) inlistExpr).setTargetList(param);
        ((SQLInListExpr) inlistExpr).setExpr(((SQLInSubQueryExpr) parent).getExpr());
        ((SQLInListExpr) inlistExpr).setNot(((SQLInSubQueryExpr) parent).isNot());
        ((SQLInListExpr) inlistExpr).setParent(sqlselect.getParent());
    }
    if (parent.getParent() instanceof MySqlSelectQueryBlock) {
        ((MySqlSelectQueryBlock) parent.getParent()).setWhere(inlistExpr);
    } else if (parent.getParent() instanceof SQLBinaryOpExpr) {
        SQLBinaryOpExpr pp = ((SQLBinaryOpExpr) parent.getParent());
        if (pp.getLeft().equals(parent)) {
            pp.setLeft(inlistExpr);
        } else if (pp.getRight().equals(parent)) {
            pp.setRight(inlistExpr);
        }
    }
    return statement.toString();
}
Also used : SQLInListExpr(com.alibaba.druid.sql.ast.expr.SQLInListExpr) SQLBinaryOpExpr(com.alibaba.druid.sql.ast.expr.SQLBinaryOpExpr) SQLExprImpl(com.alibaba.druid.sql.ast.SQLExprImpl) SQLNullExpr(com.alibaba.druid.sql.ast.expr.SQLNullExpr) MySqlSelectQueryBlock(com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlSelectQueryBlock)

Aggregations

SQLExprImpl (com.alibaba.druid.sql.ast.SQLExprImpl)8 SQLBinaryOpExpr (com.alibaba.druid.sql.ast.expr.SQLBinaryOpExpr)8 SQLNullExpr (com.alibaba.druid.sql.ast.expr.SQLNullExpr)8 SQLExpr (com.alibaba.druid.sql.ast.SQLExpr)4 SQLInListExpr (com.alibaba.druid.sql.ast.expr.SQLInListExpr)4 SQLListExpr (com.alibaba.druid.sql.ast.expr.SQLListExpr)4 SQLQueryExpr (com.alibaba.druid.sql.ast.expr.SQLQueryExpr)4 MySqlSelectQueryBlock (com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlSelectQueryBlock)4 SQLInSubQueryExpr (com.alibaba.druid.sql.ast.expr.SQLInSubQueryExpr)2 SQLValuableExpr (com.alibaba.druid.sql.ast.expr.SQLValuableExpr)2 SQLSelectGroupByClause (com.alibaba.druid.sql.ast.statement.SQLSelectGroupByClause)2 SQLSelectItem (com.alibaba.druid.sql.ast.statement.SQLSelectItem)2 SQLSelectOrderByItem (com.alibaba.druid.sql.ast.statement.SQLSelectOrderByItem)2
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