uniqueness of ComponentID

Hi,

I am downloading/exporting components from one sitepublisher to another.

the components can be imported to the new sitepublisher environment, (after running "/u01/iw/app/TeamSite/bin/iwextattr -s TeamSite/LiveSite/Type=component //vpathtocomponent".

The issue comes up for uniqueness of componentID, how can I make sure that the componentID that imported from other system won't be duplicated in the new system?

by looking at the forum, it seems that the uniqueID is generated by:
com.interwoven.livesite.common.util.UniqueIDGenerator.UniqueIDGenerator.getInstance().newID();

Are there backend database table to store those componentID? How Livesite knows that the getId() method will return a unique ID in the system?

I tried to copy an existing component to a new name, import it to sitepublisher, both these 2 components have the same componentID (since I copied it), it seems that these 2 components can both be saved to the system without complaint.

I'd appreciate it if anyone can shed some lights on this issue.

Thanks very much.

Best Regards

Martin

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Comments

tec_iwov

the unique id generator is based on a timestamp so it should be unique within the system

martinxue

Hi,

If that's the case, how to maintain the uniqueness in the following senario:

- if several users happen to open the "create new component" at the same time? (maybe synchronization of that getId() method can handle that?)

- if the system reset the time (i.e. winter/summer time in some areas)?

- when the components were imported from other system (which may have different timestamp).

Still not quite sure...

Thanks in advance.

Regards

Martin

martinxue

Hi,

the reason that I am keen on this issue is that I was importing components from one TeamSite/sitepublisher server to another, I want to make sure that those components and the ones that will be created later won't have duplicate componentID.

Any suggestions will be greatly appreciated.

Thanks in advance.

Martin