Andy Seaborne created JENA-976:
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Summary: Provide machinery for syntax manipulation
Key: JENA-976
URL: https://issues.apache.org/jira/browse/JENA-976
Project: Apache Jena
Issue Type: Improvement
Components: ARQ
Reporter: Andy Seaborne
Assignee: Andy Seaborne
Fix For: Jena 3.0.0
Jena ARQ does a lot of algebra manipulation (for example, the high level
optimizer is a collection of algebra transformation rules).
Sometimes, manipulation of query syntax is needed. Examples include rewriting a
query with a specific variable replaced by a constant term, or simplying syntax
after applying {{OpAsQuery}} (for safety, it adds some additonal "{ }" around
query parts and these can only be removed in-context; that means a pass over a
built query to detect and improve the syntax tree.
This task is to add a framework for query syntax manipulation.
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