Re:sub-databases

[pietermartin]

Hi,

Is it possible to use the sub-database feature using your JNI mapping?
I had a look but not being familiar with c and JNI I can not see how this would work.

Thanks
Pieter

[harningt]

Sub-databases wouldn't work in the current setup for the 'safe' usage in LMDB... in fact it uses an "x" sub-database instead of using null to denote that the "main" database should be used.

See:
org.fusesource.lmdbjni.leveldb.LMDB - open

The underlying JNI interface does support it via:
org.fusesource.lmdbjni.Env - openDatabase

[chirino]

Correct 'org.fusesource.lmdbjni.leveldb.LMDB' does not support it because
that implements the simpler LevelDB api which also does not support sub
databases.

On Thu, May 22, 2014 at 4:43 PM, Thomas Harning Jr <[email protected]

wrote:

Sub-databases wouldn't work in the current setup for the 'safe' usage in
LMDB... in fact it uses an "x" sub-database instead of using null to denote
that the "main" database should be used.

See:
org.fusesource.lmdbjni.leveldb.LMDB - open

The underlying JNI interface does support it via:
org.fusesource.lmdbjni.Env - openDatabase

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Hiram Chirino
Engineering | Red Hat, Inc.
[email protected] | fusesource.com | redhat.com
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