Auto Index Transient fields

tfecw · **Joined:** Tue Jul 22, 2008 11:30 am **Posts:** 13

Hi,

I have a case where i need to index data in my entity via methods that are marked @Transient. Indexing them is no problem, but i'm hoping to get some ideas on how to maintain them in the index. Basically i want to tie a @Transient method to something being persisted to the database.

For example:

Code:

... 
@column(name="foo") 
public Foo getFoo()
{
return foo;
}
public void setFoo(Foo foo)
{
this.foo = foo;
}

@Transient
@Field(name="isFooFoo")
public boolean isFooFoo()
{
  return (foo == bar);
}
...

When i manually index, isFooFoo gets set. What i would like to do is auto index isFooFoo when the foo column is updated.
What are some of my options here?

Thanks!

sanne.grinovero · **Posted:** Wed Oct 28, 2009 6:59 pm

This should work without changes. Did you try it?

tfecw · **Joined:** Tue Jul 22, 2008 11:30 am **Posts:** 13

i thought i had tried it, but i can double check tomorrow morning. I guess i'm not too clear why the @transient method would be called for auto indexing.

Just to make sure there is no confusion, indexing isFooFoo is zero problem. I'm pretty sure i'm having issues when the foo column is updated and isFooFoo is not being redone.

Does Hibernate Search just go through and reindex all the @Fields/@indexembedded for a particular Enity when that entity has an update/insert/etc performed on it? Or does it know that column xzy was udpated and it was marked with @Field so update the index for that particular field?

sanne.grinovero · **Posted:** Thu Oct 29, 2009 6:12 am

Quote:

Does Hibernate Search just go through and reindex all the @Fields/@indexembedded for a particular Enity when that entity has an update/insert/etc performed on it?

exactly

tfecw · **Joined:** Tue Jul 22, 2008 11:30 am **Posts:** 13

Thanks for the information on some of the inner workings of Hibernate Search!

I double checked my code and sure enough it works! It wasn't being indexed because the data was being updated directly via a query instead of through the entity (the joys of old code)

Thanks again!