afs commented on issue #1557:
URL: https://github.com/apache/jena/issues/1557#issuecomment-1260836451
DynamicDataset work looks reversible.
1. It is a specific DatasetGraph implementation and you can get the original.
2. Changes are recorded.
```
// Record what we've done.
// c.f. "ARQConstants.sysDatasetDescription" which is used to pass
in a DatasetDescription
dsg2.getContext().set(ARQConstants.symDatasetDefaultGraphs,
defaultGraphs) ;
dsg2.getContext().set(ARQConstants.symDatasetNamedGraphs,
namedGraphs) ;
```
But it is still the case that some day you will want to intercept Fuseki
query processing - working with a collection of ARQ tweaks is restricting.
Changing things one-by-one is more work overall, and isn't guaranteed to be
possible.
Put the extension in and have a single place to alter the system behaviour
and make life easier for your group.
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