java - columnDefinition="DATE DEFAULT SYSDATE", don't work -

i using code:

@column(name = "fecha_creacion_timestamp",columndefinition="date default sysdate", insertable=false) @temporal(temporaltype.timestamp) private date fechacreaciontimestamp;  

but when insert data table, doesn't have date have date null.

updated answer: (now know using oracle)

what need make sure column doesn't included in insert statements. that, need update @column annoation like:

@column(..other properties.., insertable = false) 

see here more details.

now, need make sure generated value available in domain object after perform insert. if using hibernate, , not mind using hibernate annotations, can put following annotation on field.

@org.hibernate.annotations.generated(org.hibernate.annotations.generationtime.insert) 

hibernate automatically perform required select query you.

if not using hibernate, need select fetch generated value after performing insert. jpa doesn't have specify should done automatically.