Depending on the type of indexes you want to build, WebSphere® eXtreme Scale provides
built-in plug-ins that you can add to the BackingMap to build an index.
HashIndex
The built-in HashIndex, the com.ibm.websphere.objectgrid.plugins.index.HashIndex class,
is a MapIndexPlugin plug-in that you can add into
BackingMap to build static or dynamic indexes.
This class supports both the MapIndex and MapRangeIndex interfaces.
Defining and implementing indexes can significantly improve query
performance.
InverseRangeIndex
The
built-in InverseRangeIndex, the
com.ibm.websphere.objectgrid.plugins.index.InverseRangeIndex class,
is a
MapIndexPlugin plug-in that you can add into
BackingMap to build static indexes. This class supports the
MapIndex interface.
Defining and implementing this index lets you retrieve range data
from the grid.