Hi, Yes, you can use placeholders. Even dynamically created queries can use placeholders.
As for SQL-2, you need to use single quotes, not double quotes. Example: SELECT * FROM [cq:PageContent] WHERE [aProperty] <> 'Joe''s Taxi' You only need to escape single quotes, using a single quote escape character: String aValue = "Joe's Taxi"; String sql2Query = "SELECT * FROM [cq:PageContent] " + "WHERE [aProperty] <> '" + aValue.replaceAll("'", "''") + "'"; If you want to use XPath, you can use single quotes or double quotes, but usually single quotes are used as well (the same as in SQL-2). XPath queries don't support placeholders currently. Regards, Thomas On 02/12/14 01:39, "Behrang Saeedzadeh" <behran...@gmail.com> wrote: >Let's pretend I have a JCR 2 query string that is made like this: > >String sql2Query = "SELECT * FROM [cq:PageContent] " + > "WHERE [aProperty] <> \" + aValue + "\""; > >Are there any helper methods using which I can escape aValue? > >By the way, I already know that in SQL2 we can use placeholders in queries >and let the framework take care of escaping of values for us, but if I >were >to create this query dynamically like this, how can I escape aValueto >prevent SQL injection as well as construction of broken queries? > >Thanks in advance. > > >Best regards, >Behrang >http://www.behrang.org