# Request to remove readonly contraint from TermBindingItem

**Category:** [Reference Implementation: Java (archive)](https://discourse.openehr.org/c/reference-implementation-java-archive/154)
**Created:** 2012-09-28 00:19 UTC
**Views:** 6
**Replies:** 2
**URL:** https://discourse.openehr.org/t/request-to-remove-readonly-contraint-from-termbindingitem/15208

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## Post #1 by @pablo

Hi,

I'm trying to rewrite the code property in TermBindingItem but I'm getting this exception:

groovy.lang.ReadOnlyPropertyException: Cannot set readonly property: code for class: org.openehr.am.archetype.ontology.TermBindingItem

Is it possible to remove that contraint?

Thanks a lot.

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## Post #2 by @system

Yes, I can remove that\. In general, we are leaving immutable object
pattern in AOM\.
Cheers,
Rong

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## Post #3 by @pablo

Thank you Rong.

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**Canonical:** https://discourse.openehr.org/t/request-to-remove-readonly-contraint-from-termbindingitem/15208
**Original content:** https://discourse.openehr.org/t/request-to-remove-readonly-contraint-from-termbindingitem/15208