| Name | Description | Type | Package | Framework |
| Basic2ObjectMap | Basic2ObjectMap with only basic set of operations. | Class | org.apache.giraph.types.ops.collections | Giraph |
| Basic2ObjectMap .BasicInt2ObjectOpenHashMap | Class | org.apache.giraph.types.ops.collections.Basic2ObjectMap | Giraph | |
| Basic2ObjectMap .BasicLong2ObjectOpenHashMap | Class | org.apache.giraph.types.ops.collections.Basic2ObjectMap | Giraph | |