5 | Shared (L2) Entity Cache - every entity class which is not marked with @Cacheable inherits cacheability setting from its super ... automatically: On retrieval - shared cache is used for entity objects that are not in the persistence context. If an entity object is not available also in the shared cache - it is retrieved from |
5 | Literals in JPQL and Criteria Queries), a feature that is not currently supported by all JPA implementations. String Literals JPQL follows ... ", "abcd\n1234") but this is not supported by all the JPA implementations. Unlike most other JPQL components, String literals (which represent data) are case sensitive, so 'abc' and 'ABC' are not |
5 | javax.persistence.EntityManager entities to become detached. Changes made to entities that have not been flushed to the database will not ... - if not an entity Since: JPA 1.0 Query createNamedQuery(String name) Create an instance of Query ... : IllegalArgumentException - if a query has not been defined with the given name or if the query |
5 | Schema Update. The default configuration file contains an empty <schema> element. If the <schema> element is not empty ... to the new package name. In addition, whether or not a new-name attribute is specified, a <package> element ... . The com.example.old3 package is not renamed, but rename operations are specified for some of its classes |
5 | Deleting JPA Entity Objects back and not committed the object is not deleted. An IllegalArgumentException is thrown by remove if the argument is not an instance of an entity class or if it is a detached entity ... up dependent objects (e.g. Address) that should not exist without a reference from an owner object (e |
5 | Strings in JPQL and Criteria Queries Pattern Matching with Wildcards The [NOT] LIKE operator checks if a specified string matches ... '%' is always TRUE (for any c.name value). c.name NOT LIKE '%' is always FALSE (for any c.name value ... character is 1. Zero (0) is returned if the substring is not found. The third argument |
5 | javax.persistence.TypedQuery. Returns 0 if setFirstResult was not applied to the query object. Returns: position of the first ... . Get the flush mode in effect for the query execution. If a flush mode has not been set for the query ... Throws: IllegalStateException - if the query is found not to be a Java Persistence query language |
4 | GROUP BY and HAVING clauses the query. Note that the query above might not be supported by some JPA implementations ... (which does not use aggregates) is equivalent to the following query: SELECT DISTINCT SUBSTRING(c ... Aggregates (no GROUP BY) JPQL supports a special form of aggregate queries that do not have a GROUP BY |
4 | Updating JPA Entity Objects. If the transaction is rolled back and not committed the update is discarded. On commit the persist operation ... . If global cascade persist is enabled all the reachable entity objects that are not managed ... ); em.getTransaction().begin(); employee.projects[0] = new Project(); // not detected |
4 | Database Doctor, and if the file is not valid (it is corrupted), produces a detailed diagnosis report of all the errors. Repair ... engine (not using one server process), thus bypassing ObjectDB internal file lock protection. Modifying the database file externally not through ObjectDB (e.g. by malicious software such as |
