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Bundle rebind transformers with blueprints#738
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neykov wants to merge 6 commits intoapache:masterfrom
neykov:rebind-transformers
Open
Bundle rebind transformers with blueprints#738neykov wants to merge 6 commits intoapache:masterfrom neykov:rebind-transformers
neykov wants to merge 6 commits intoapache:masterfrom
neykov:rebind-transformers
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incubator-brooklyn-pull-requests #1439 FAILURE |
Prepare for applying transforms before generating the manifest - need catalog bundles to load transforms.
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Resolved merge conflicts. |
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incubator-brooklyn-pull-requests #1442 SUCCESS |
neykov
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in sjcorbett/incubator-brooklyn
Jul 31, 2015
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Add means for blueprints to register persistence state transformers, applied on rebind. This will shift the responsibility of creating the transforms from the Brooklyn operators to the blueprints developers.
Very useful when managing brooklyn of brooklyns or lots of instances (transparent for the upgrade effector). Works with partial rebind which allows upgrading of entities needing state transforms without restarting the instance.
As a next step I would like to be able to declare the version of the blueprint for which a transform is written, so it is executed only against those versions. I still don't see how to introduce versions in the blueprint classes though - probably best is to link them to the bundle version, needs further investigation.