Francesco Mari created OAK-4994:
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Summary: Implement additional record types
Key: OAK-4994
URL: https://issues.apache.org/jira/browse/OAK-4994
Project: Jackrabbit Oak
Issue Type: Improvement
Components: segment-tar
Reporter: Francesco Mari
The records written in the segment store should be augmented with additional
types. In OAK-2498 the following additional types were identified:
- List of property names. A list of strings, where every string is a property
name, is referenced by the template record.
- List of list of values. This list is pointed to by the node record and
contains the values for single\- and multi\- value properties of that node. The
double indirection is needed to support multi-value properties.
- Map from string to node. This map is referenced by the template and
represents the child relationship between nodes.
- Super root. This is a marker type identifying top-level records for the
repository super-roots.
Just adding these types doesn't improve the situation for the segment store,
though. Bucket and block records are not easily parseable because they have a
variable length and their size is not specified in the record value itself. For
record types to be used effectively, the way we serialize certain kind of data
has to be reviewed for further improvements.
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