25 | getParameterValue(position)Method javax.persistence.Query Object getParameterValue( int position ) Return the value bound to the positional parameter. Parameters: position - position Returns: parameter value Throws: IllegalStateException - if the parameter has not been been bound IllegalArgumentException - if the parameter with the specified position does not exist Since: JPA 2.0 |
25 | getParameterValue(name)Method javax.persistence.Query Object getParameterValue( String name ) Return the value bound to the named parameter. Parameters: name - parameter name Returns: parameter value Throws: IllegalStateException - if the parameter has not been been bound IllegalArgumentException - if the parameter of the specified name does not exist Since: JPA 2.0 |
25 | Paths and Types in JPQL and Criteria API, string, date). Simple type values are more useful in queries. They have special operators ... through a NULL value The following query retrieves country names with their capital city names: SELECT ... . It might be easier to understand exactly how this works by considering the equivalent JOIN query. Entity |
23 | ObjectDB Object Database Features attributes, grouping queries and aggregate queries) which are usually missing from Object Oriented ... cache (per EntityManagerFactory). Database file page cache. Query program cache (for repeating queries with different arguments). Query result cache (for repeating queries with the same arguments |
21 | Logical Operators in JPQL and Criteria APILogical operators in JPQL and in JPA criteria queries enable composition of complex JPQL boolean ... , the JDO Query Language). ObjectDB supports both forms. Binary AND (&&) Operator The following query ... The following query retrieves countries whose population or area exceeds a specified limit: SELECT c FROM |
21 | Comparison in JPQL and Criteria APIMost JPQL queries use at least one comparison operator in their WHERE clause. Comparison Operators ... , the JDO Query Language). ObjectDB supports both forms. Besides the different notation ... can be compared by using any comparison operator. Equality operators (=, <>, ==, !=) on strings in queries |
20 | Is ObjectDB a NoSQL Database? of NoSQL technology, which are weak query capabilities and lack of ACID (atomicity, consistency, isolation, durability). Unlike other NoSQL solutions, ObjectDB provides full support of rich complex queries, using two standard Java query languages: JPQL (Java Persistence Query Language) and JDOQL (JDO |
2 | setExtensions(extensions)Method javax.jdo.Query void setExtensions( Map extensions ) Set multiple extensions, or use null to clear all extensions. Map keys and values are not standard. An implementation must ignore entries that are not recognized. Parameters: extensions - the map of extensions Since: JDO 2.0 See Also: addExtension |
2 | getIgnoreCache()Method javax.jdo.Query boolean getIgnoreCache() Get the ignoreCache option setting. Returns: the ignoreCache option setting. Since: JDO 1.0 See Also: setIgnoreCache |
2 | [ODB1] Chapter 9 - ObjectDB Explorer to browse databases, execute JDOQL queries, create new databases and edit the content of existing ... database objects visually, navigate among them and execute queries is very valuable during development ... contains (root objects are discussed in chapter 6). The "Query" window enables a user to execute JDOQL |
