Re: [aspectj-users] A way to change annotation declaration by aspect or

[Andy Clement <andrew.clement@xxxxxxxxx>]

Hi,

On 14 August 2012 00:08, Jean-Jacques Peyronel
<jjpeyronel@xxxxxxxxxxxxxx> wrote:
> Are there a way to use dynamic construction with declare @field
>
> I'm afraid not.  This could be feasible for fixed elements at a
> joinpoint that are known at compile/weave time (so those encapsulated
> in thisJoinPointStaticPart), but not for the more dynamic features in
> thisJoinPoint which aren't known until runtime.  Feel free to raise an
> enhancement request for this.
>
> Have you an exemple that would be feasible ?

Just to be clear, I wasn't saying you could do anything right now, I
was just saying it could be implemented for the static parts of a
joinpoint object (like the method signature, line number, declaring
type, etc - those elements that are fixed at a joinpoint).

You couldn't use it with args/this/target because those are likely to
change dynamically at runtime.  In your case this would mean these
kinds of things would work:

@Column(name=thisJoinPointStaticPart+"_uuid", nullable=false,
columnDefinition="uuid NOT NULL")
@Column(name=thisJoinPointStaticPart.getSignature()+"_uuid",
nullable=false, columnDefinition="uuid NOT NULL")
@Column(name=thisJoinPointStaticPart.getDeclaringType()+"_uuid",
nullable=false, columnDefinition="uuid NOT NULL")

cheers,
Andy


> On 13 August 2012 02:53, Jean-Jacques Peyronel
> <jjpeyronel@xxxxxxxxxxxxxx> wrote:
>
> Hi all,
>
> I have this :
>
> @Column(name="account_category_uuid", nullable=false)
> @Id
> private java.util.UUID account_category_uuid;
>
> I want an aspect who change :
> @Column(name="account_category_uuid", nullable=false)
> to
> @Column(name="account_category_uuid", nullable=false,
> columnDefinition="uuid NOT NULL")
>
> I've a lot of class with this sort of declaration.
>
> I've tried :
> declare @field : * *uuid : @Column(columnDefinition="uuid NOT NULL");
> but this seems not change the first declaration.
>
> Are there a way to use dynamic construction with declare @field like :
> @Column(name=thisjointpoint+"_uuid", nullable=false,
> columnDefinition="uuid NOT NULL")
>
> Thanks in advance.
>
> Jean-Jacques.
>
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