 23 | ) The following method retrieves a Country object from the database by its name:
public Country ... method. The setParameter method supports method chaining (by returning the same TypedQuery instance ... . Named parameters can be easily identified in a query string by their special form, which is a colon |
23 | to start by running a live sample application in your IDE, you should be able to follow this tutorial |
23 | update collisions resulting from simultaneous updates to the same data by two concurrent users. Locking ... by another transaction. When using ObjectDB, optimistic locking is enabled by default and fully ... is automatically increased by one. Version numbers are managed internally but can be exposed by defining a version |
21 | ObjectDB Enhancer is a post compilation tool that improves performance by modifying the byte code ... (and actually required by JPA but not enforced by ObjectDB) to avoid accessing persistent fields ... . by using the get and set methods). If you follow this practice only user defined persistable |
21 | and served by ObjectDB Software Ltd and governs the privacy of its users who choose to use it. The policy ... by Google Analytics which uses cookies to track visitor usage. The software will save a cookie to your computers hard drive in order to track and monitor your engagement and usage of the website |
20 | New entity objects can be stored in the database either explicitly by invoking the persist method ... is committed. An IllegalArgumentException is thrown by persist if the argument is not an instance ... is thrown. The exception is thrown either by persist (if that existing entity object is currently |
20 | , having, count, sum, avg, min, max, ...). ORDER BY clause (orderBy, Order, asc, desc). The links ... , are defined by instantiation of Java objects that represent query elements. A major advantage of using ... factory of criteria queries and criteria query elements. It can be obtained either by |
20 | classes) are represented in JPQL by the following types of expressions: Variables - FROM ... and functions (e.g. for strings and for numbers), they can be compared by all six comparison operators, and they can be used in ordering. Navigation through Path Expressions A path expression always starts |
19 | will affect the way strings are sorted in queries (with ORDER BY). Currently strings are always ordered by Unicode order, and a workaround that enables controlling the order is to use normalizing, as discussed ... , DMS and other systems requires correct collation when using order by clause. +1 for this ... lwalkowski dmarko Arne |
19 | definition or the ORDER BY clause, so the sort uses the correct collation per defined locale. Thank ... (we are Czech company). How the sort order works for international (for us 'czech') letters? Does the ordering respects the national requirements? Thank you for clarification ... ObjectDB uses |