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From "Craig L Russell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (JDO-678) Ability to set properties on PersistenceManager
Date Fri, 19 Oct 2012 15:18:12 GMT

    [ https://issues.apache.org/jira/browse/JDO-678?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13480074#comment-13480074

Craig L Russell commented on JDO-678:

Specification update:

12.19 Property Management
The operation of a PersistenceManager is partly governed by the settings of various properties,
which have been documented in earler sections. These properties are inherited from the PersistenceManagerFactory
whence the PersistenceManager was obtained. The properties can be set by methods such as setNontransactionalRead.
Some properties are not standardized but are implementation-defined. These non-standard properties
can only be set via the setProperty method.
void setProperty(String name, Object value);
Set the property named name to the value value. If a vendor-specific property is not recognized,
it is silently ignored. If the value for the property is not supported by the implementation,
a JDOUserException is thrown.
Map<String, Object> getProperties();
Return a map of String, Object with the properties and values currently in effect. Changing
the values in the map will not affect the properties in the PersistenceManager.
Set<String> getSupportedProperties();
Return a set of properties supported by this PersistenceManager.
> Ability to set properties on PersistenceManager
> -----------------------------------------------
>                 Key: JDO-678
>                 URL: https://issues.apache.org/jira/browse/JDO-678
>             Project: JDO
>          Issue Type: Improvement
>          Components: api, specification, tck
>    Affects Versions: JDO 3 (3.0)
>            Reporter: Andy Jefferson
>            Assignee: Craig L Russell
>             Fix For: JDO 3 maintenance release 1 (3.1)
>         Attachments: jdo-678.patch
> It would be desirable to be able to set properties on the PersistenceManager, so as to
be able to configure/change behaviour for a PM. Currently the PM is generated with particular
configuration (from the PMF) and allows specific options to be set. But what about vendor
extensions ? Having a general setProperty/getProperty/getSupportedProperties would be useful,
and could also encompass the existing detachAllOnCommit, IgnoreCache, etc settings.

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