org.apache.avalon.cornerstone.services.store
Interface Store
- All Superinterfaces:
- ServiceSelector
- All Known Implementing Classes:
- RepositoryManager
- public interface Store
- extends ServiceSelector
Allows selection from a number of configured Repositories.
Selection criterion is passed in as a Configuration
object.
- Author:
- Federico Barbieri
- See Also:
Repository
,
ObjectRepository
,
StreamRepository
Field Summary |
static java.lang.String |
ROLE
|
Method Summary |
java.lang.Object |
select(java.lang.Object policy)
Selects a Repository configured for the given policy. |
ROLE
public static final java.lang.String ROLE
select
public java.lang.Object select(java.lang.Object policy)
throws ServiceException
- Selects a Repository configured for the given policy.
The policy must be an instance of
Configuration
.
The following attributes are used by the Store and thus are mandatory
in the policy parameter:
<repository destinationURL="[URL of this repository]"
type="[repository type e.g. OBJECT, STREAM or MAIL]"
model="[repository model e.g. PERSISTENT, CACHE]">
[additional configuration]
</repository>
The policy is used both to select the appropriate
Repository and to configure it.
- Specified by:
select
in interface ServiceSelector
- Parameters:
policy
- a Configuration
object identifying the sought Repository
- Returns:
- requested
Repository
- Throws:
ServiceException
- if no repository matches policy
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