Hi Robert,
Robert Giddings wrote:
Hi Armin,
UserType is a complex object that is used as a property in other
objects. AccessRight is an enum.
The XDoclet I currently have is:
/**
* @ojb.field jdbc-type="LONGVARCHAR"
conversion="org.apache.ojb.broker.accesslayer.conversions.Object2Base64S
tringFieldConversion"
*/
private EnumMap<AccessRight, Boolean> accessRights =
new EnumMap<AccessRight, Boolean>(AccessRight.class);
I was just wondering if there is a better way of converting this
property?
hmm, you can write your own FieldConversion to optimize conversion
performance (java --> sql and vice versa).
E.g. persist key-value string ("read=true,write=true,delete=false") or
only the values ("110") instead of the whole object.
An alternative would be a nested object
http://db.apache.org/ojb/docu/guides/advanced-technique.html#Nested+Objects
with a Boolean field for each AccessRight. But a 'nested object' need a
default constructor and it will be tricky to realize it with
EnumMap<AccessRight, Boolean>. The advantage of a nested object is that
you can search for each field (of a nested object) in queries.
regards,
Armin
Thanks,
Robert Giddings
-----Original Message-----
From: Armin Waibel [mailto:[EMAIL PROTECTED]
Sent: 28 September 2007 16:40
To: OJB Users List
Subject: Re: Maps
Robert Giddings wrote:
Also forgot to mention, what I really want is the XDoclet code that
can
be used with Maps.
Sorry, I don't get it. How are UserType and AccessRight associated
(1:n?)?
Armin
Robert
-----Original Message-----
From: Robert Giddings [mailto:[EMAIL PROTECTED]
Sent: 28 September 2007 14:28
To: 'OJB Users List'
Subject: RE: Maps
Hi Armin,
This is the Map in question:
private EnumMap<AccessRight, Boolean> accessRights =
new EnumMap<AccessRight, Boolean>(AccessRight.class);
It is just a data member field in an object called UserType.
Thanks,
Robert
-----Original Message-----
From: Armin Waibel [mailto:[EMAIL PROTECTED]
Sent: 28 September 2007 14:00
To: OJB Users List
Subject: Re: Maps
Hi Robert,
Robert Giddings wrote:
Hi,
Does anyone know if and how OJB can handle Maps?
can you describe more detailed what you want to do - using maps in 1:n
or m:n references, direct persist maps, ...
regards,
Armin
Thanks,
Rob
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