I have an entity bean X similar to the following:
| @Entity
| @SequenceGenerator(name = "FRAUD_CASENUMBER_SEQ", sequenceName =
"FRAUD_CASENUMBER_SEQ")
| public class Tblcase implements Serializable {
| // LOBS
| @Lob
| @Basic(fetch=FetchType.LAZY)
| public String fraudfindingnotes;
| .
| .
| //REGULAR FIELDS
| public BigDecimal mgmtrvdother;
| .
| .
| //LOOKUP TABLES
| @OneToOne
| @JoinColumn(name = "CHRFRAUDCODE", referencedColumnName =
"CHRFRAUDCODE", insertable = false, updatable = false)
| public TblmatrixFraudcode tblmatrixFraudcode;
|
| @OneToOne
| @JoinColumn(name = "NAME", referencedColumnName = "NAME",
insertable = false, updatable = false)
| public Tbluser tbluser;
|
| @OneToOne
| @JoinColumn(name = "CASETYPECD", referencedColumnName =
"CASETYPECD", insertable = false, updatable = false)
| public Tblcasetyperef tblcasetyperef;
| .
| .
| .
| .
| }
|
|
|
|
|
What I want to do is return a list of the above entity bean BUT I want it to only hold the
PK, AND a few one-to-one fields instead of the all the fields in the entity bean - I dont
need complete entities up front; The issue is that a select * statement for the entity
takes way to long when I have many rows. When I remove the lobs from the select statement,
the execution time is reduced measurably - and no, there is no table scanning going on.
Does someone have an example of syntax for a jpql statment that will allow me to select
specific fields - some fields being one-to-one relationships, using an outer join. The
statement will run and load the above entity bean with those selected fields so that I
have a list of entity beans. Later on, when a row is selected by the user, I can load the
full entity bean for the PK he selected
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4100471#...
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...