SQL
// make SQL query
QueryManager queryManager = workspace.getQueryManager();
String sqlStatement = "SELECT * FROM mix:title WHERE CONTAINS(*,'break')";
// create query
Query query = queryManager.createQuery(sqlStatement, Query.SQL);
// execute query and fetch result
QueryResult result = query.execute();
XPath
// make SQL query
QueryManager queryManager = workspace.getQueryManager();
// we want find 'document1'
String xpathStatement = "//element(*,mix:title)[jcr:contains(.,'break')]";
// create query
Query query = queryManager.createQuery(xpathStatement, Query.XPATH);
// execute query and fetch result
QueryResult result = query.execute();