Package com.alibaba.druid.sql.ast

Examples of com.alibaba.druid.sql.ast.SQLObject

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        if (x == null) {
            return false;
        }

        for (;;) {
            SQLObject parent = x.getParent();

            if (parent == null) {
                return false;
            }
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        if (x instanceof SQLSelectQueryBlock) {
            return (SQLSelectQueryBlock) x;
        }

        SQLObject parent = x.getParent();

        if (parent instanceof SQLExpr) {
            return getQueryBlock(parent);
        }
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            String owner = ((SQLName) x).getSimleName();
            owner = WallVisitorUtils.form(owner);
            if (isInTableSource(x) && !visitor.getProvider().checkDenySchema(owner)) {

                if (!isTopStatementWithTableSource(x) && !isFirstSelectTableSource(x) && !isFirstInSubQuery(x)) {
                    SQLObject parent = x.getParent();
                    while (parent != null && !(parent instanceof SQLStatement)) {
                        parent = parent.getParent();
                    }

                    boolean sameToTopSelectSchema = false;
                    if (parent instanceof SQLSelectStatement) {
                        SQLSelectStatement selectStmt = (SQLSelectStatement) parent;
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        if (!(x instanceof SQLExprTableSource)) {
            return false;
        }

        SQLSelect sqlSelect = null;
        SQLObject parent = x.getParent();
        while (parent != null) {

            if (parent instanceof SQLSelect) {
                sqlSelect = (SQLSelect) parent;
                break;
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        if (!(x instanceof SQLExprTableSource)) {
            return false;
        }

        SQLSelectQueryBlock queryBlock = null;
        SQLObject parent = x.getParent();
        while (parent != null) {

            // if (parent instanceof SQLJoinTableSource) {
            // SQLJoinTableSource join = (SQLJoinTableSource) parent;
            // if (join.getRight() == x && hasTableSource(join.getLeft())) {
            // return false;
            // }
            // }

            if (parent instanceof SQLSelectQueryBlock) {
                queryBlock = (SQLSelectQueryBlock) parent;
                break;
            }

            x = parent;
            parent = x.getParent();
        }

        if (queryBlock == null) {
            return false;
        }

        boolean isWhereQueryExpr = false;
        do {
            x = parent;
            parent = parent.getParent();
            if (parent instanceof SQLUnionQuery) {
                SQLUnionQuery union = (SQLUnionQuery) parent;
                if (union.getRight() == x && hasTableSource(union.getLeft())) {
                    return false;
                }
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            WallContext context = WallContext.current();
            if (context != null) {
                WallSqlTableStat tableStat = context.getTableStat(tableName);
                if (tableStat != null) {
                    SQLObject parent = x.getParent();

                    while (parent instanceof SQLTableSource) {
                        parent = parent.getParent();
                    }

                    if (parent instanceof SQLSelectQueryBlock) {
                        SQLSelectQueryBlock queryBlock = (SQLSelectQueryBlock) parent;
                        if (x == queryBlock.getInto()) {
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        }

        if (WallVisitorUtils.queryBlockFromIsNull(visitor, x.getRight())) {
            boolean isTopUpdateStatement = false;
            boolean isTopInsertStatement = false;
            SQLObject selectParent = x.getParent();
            while (selectParent instanceof SQLUnionQuery //
                   || selectParent instanceof SQLJoinTableSource //
                   || selectParent instanceof SQLSubqueryTableSource //
                   || selectParent instanceof SQLSelect) {
                selectParent = selectParent.getParent();
            }

            if (selectParent instanceof SQLUpdateStatement) {
                isTopUpdateStatement = true;
            }
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    }

    public boolean visit(SQLPropertyExpr x) {
        if (x.getOwner() instanceof SQLVariantRefExpr) {
            SQLVariantRefExpr varExpr = (SQLVariantRefExpr) x.getOwner();
            SQLObject parent = x.getParent();
            String varName = varExpr.getName();
            if (varName.equalsIgnoreCase("@@session") || varName.equalsIgnoreCase("@@global")) {
                if (!(parent instanceof SQLSelectItem) && !(parent instanceof SQLAssignItem)) {
                    violations.add(new IllegalSQLObjectViolation(ErrorCode.VARIANT_DENY,
                                                                 "variable in condition not allow", toSQL(x)));
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    public boolean visit(SQLIdentifierExpr x) {
        final String name = x.getName();
        boolean computeSharding = isShardingSupport();
        if (computeSharding) {
            SQLObject parent = x.getParent();
            computeSharding = parent instanceof SQLExprTableSource || parent instanceof SQLPropertyExpr;
        }
       
        if (computeSharding) {
            int pos = name.lastIndexOf('_');
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    public static boolean isFirst(SQLObject x) {
        if (x == null) {
            return true;
        }

        SQLObject parent = x.getParent();
        if (!(parent instanceof SQLExpr)) {
            return true;
        }

        if (parent instanceof SQLBinaryOpExpr) {
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Related Classes of com.alibaba.druid.sql.ast.SQLObject

  • com.alibaba.druid.sql.dialect.mysql.visitor.MySqlParameterizedOutputVisitor
  • com.alibaba.druid.sql.dialect.oracle.visitor.OracleSchemaStatVisitor
  • com.alibaba.druid.sql.visitor.ParameterizedOutputVisitorUtils
  • com.alibaba.druid.sql.visitor.SchemaStatVisitor
  • com.alibaba.druid.sql.visitor.SchemaStatVisitor$OrderByStatVisitor
  • com.alibaba.druid.sql.visitor.SQLASTOutputVisitor
  • com.alibaba.druid.wall.spi.MySqlWallVisitor
  • com.alibaba.druid.wall.spi.WallVisitorUtils
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