Disable automatic recovery for XA capable DataSources

[mmusgrov]

Description

When XA recovery is enabled then by default all XA capable datasources are registered with the transaction recovery system. The recent Agroal upgrade to version 2.6 (see Issue #47067 ) adds support for a config property to selectively disable adding such XA datasources for recovery and this proposal is to add a similar config property to the datasources extension config which will enable this feature. The javadoc for the property will be:

 * Whether to enable recover for this datasource.
 * <p>
 * Normally a transaction manager will call xa_recover () on an XA connection during recovery to obtain
 * a list of transaction branches that are currently in a prepared or heuristically completed state.
 * However, it can happen that multiple XA connections connect to the same database which would all
 * return the same set of branches and for reasons of improved performance only one should be used
 * for recover() calls. The default value for this configuration property is true because when there
 * is only one connection it is vital for data consistency that the connection is able to report its list of
 * prepared or heuristically completed branches.

Implementation ideas

No response