Package fr.inria.atlanmod.neoemf.data.hbase.option

Provides utility classes to define specific behaviors of HBase data persistence.

See: Description

Interface Summary

Interface	Description
HBaseResourceOptions	PersistentResourceOptions that hold HBase related resource-level features.

Class Summary

Class	Description
HBaseOptions	A PersistenceOptions that holds HBase specific options.
HBaseOptionsBuilder	A AbstractPersistenceOptionsBuilder subclass that creates HBase specific options.

Package fr.inria.atlanmod.neoemf.data.hbase.option Description

Provides utility classes to define specific behaviors of HBase data persistence.

This package defines two APIs extending PersistentResourceOptions and PersistenceOptionsBuilder:

• HBaseResourceOptions: defines HBase specific options, such as the access policy of the HBase store (read-write / read-only). HBase specific options can be combined with generic options defined in PersistentResourceOptions.
• HBaseOptionsBuilder: a fluent API allowing to easily set HBase specific options in client applications. Since the builder implements PersistenceOptionsBuilder it can be used to combine HBase specific and generic options.

These classes are used to create option maps used in EMF save and load methods. For example, the following code creates a map that tells the framework to use a HBase backend in read-only mode, and a cache the accessed features to retrieve them efficiently. The read-only nature is a HBase specific option, while the caching behavior is defined at the core level.

 // Create the option map
 Map<String, Object> options = HBaseOptionsBuilder.newBuilder()
     .readOnly()
     .cacheFeatures()
     .asMap();

 // Load the resource with the specified options
 myResource.load(options);

 // Manipulate the resource with a read-only HBase backend and feature cache enabled
 myResource.getContents() [...]