9 | Performance problem due to a massive EAGER fetch that follows the query execution. That eager fetch doesn't happen for example ... the database. You may find out that by a recursive EAGER fetch you enforce loading of the entire ... Emil Perić The answer to your question is that the Explorer doesn't apply EAGER fetch. You wrote |
8 | Possible issue with LAZY Loading and 2.4.3_01 the db is always returning everything, including the data marked as Fetch.LAZY. I wrote ... EntityManager, but it is fetched lazily when needed. You do see a difference (in addition to performance ... be available and will not be fetched either. support Support Ok, so then I believe Lazy loading |
8 | can't get HashMap out of the database the map with @OneToMany(fetch=FetchType.EAGER). Outside the DAO method only fields ... Date signingDate; @OneToMany(fetch=FetchType.EAGER, cascade=CascadeType.ALL) private ... Long id; @OneToMany(fetch=FetchType.EAGER, cascade=CascadeType.ALL) private ArrayList |
8 | Entity with java.util.Date column gives ClassCastException in BIRT.eclipse.birt.data.engine.odaconsumer.ResultSet.fetch(ResultSet.java:189) at org.eclipse.birt.data.engine.executor.cache.OdiAdapter.fetch(OdiAdapter.java:214) at org.eclipse.birt.data.engine.executor.cache.RowResultSet.fetch(RowResultSet.java:145) at org.eclipse.birt.data.engine.executor.cache |
8 | EM.find() is suddenly slower (AccessType.FIELD) @Column (name = "uid") private String uid; @OneToOne (fetch ... element; @OneToMany (fetch = FetchType.EAGER, cascade = {CascadeType.REFRESH, CascadeType.DETACH ... eager fetch that affects the performance of further operations. Could you please check build 2.8.6 |
8 | Annotate a Map field with @ElementCollection or @Basic. It could be due to the different default fetch value (LAZY for ElementCollection, EAGER for Basic). You may try using an @ElementCollection(fetch=FetchType.EAGER) and see if it is fast as @Basic support Support I tested it already with @ElementCollection(fetch=FetchType.EAGER). It is little bit faster as before |
8 | How to Remove records from many to many relationship tables in JPA TransportationEvent { ... @ManyToMany(fetch = FetchType.EAGER, cascade = CascadeType.PERSIST) private List ... { .... @ManyToMany( fetch = FetchType.LAZY, cascade = CascadeType.PERSIST) private List ... ) and i applied that as @ManyToMany(fetch = FetchType.EAGER, cascade = {CascadeType.PERSIST |
1 | Tracking changes to new collections (in enhancement mode) after flush.FIELD) @Column (name = "uid") private String uid; @OneToOne (fetch = FetchType.EAGER ... ; @OneToMany (fetch = FetchType.EAGER, cascade = {CascadeType.REFRESH, CascadeType.DETACH }) private ... MappingImpl { @Id private String uid; @OneToOne (fetch = FetchType.EAGER |
1 | JQL-Update Queries fails with activated L2-Cache and fetching Entities afterwards from database. Expected result: Getting changed Entities from ... UPDATE-Query, calling entityManger.clear() and fetching Entities afterwards from database. Expected ... -Query and fetching Entities afterwards from database. Expected result: Getting changed Entities from |
1 | @FetchGroup in JPA similar to JDO JDO. It works like this. First you specify attributes to fetch from database: @FetchGroup(name ... ); query.setHint(QueryHints.FETCH_GROUP_NAME, "names"); This will be equivalent to query using tuples ... .class); But with fetch group you don't have to convert tuples to objects. I know that you can add many |
