Alejandro Moratinos created JCR-5248:
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Summary: Support "indexHint" field in AuthorizableQueryManager
JSON query format
Key: JCR-5248
URL: https://issues.apache.org/jira/browse/JCR-5248
Project: Jackrabbit Content Repository
Issue Type: Improvement
Components: jackrabbit-jcr-commons
Reporter: Alejandro Moratinos
AuthorizableQueryManager translates a JSON query into calls on jacrabkit api
QueryBuilder, which UserManager#findAuthorizables(Query) then turns into the
actual repository query.
The JSON format currently supports \{{selector}}, \{{scope}}, \{{condition}},
\{{order}}/\{{sort}} and \{{limit}}, but offers no way to influence which index
is used to evaluate the query.
Proposed change
Add support for a new optional top-level string field \{{indexHint}} in the
JSON query format. When present, its value is passed to
\{{QueryBuilder#setIndexTag(String)}}, which forces the underlying query to use
an index marked with that tag (translated to an \{{option(index tag
<indexHint>)}} clause by the query engine).
Example:
\{code:json}
{
"selector": "user",
"indexHint": "myTag",
"condition": [ \{ "eq": { "property": "@prop", "value": "x" } } ]
}
\{code}
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