| Package | Description | 
|---|---|
| org.apache.giraph.conf | Package of Giraph configuration related things. | 
| org.apache.giraph.mapping | Package contains definition and implementations of MappingStore and
 related concepts | 
| org.apache.giraph.worker | Package of all the worker related things | 
| Modifier and Type | Field and Description | 
|---|---|
| static ClassConfOption<MappingStore> | GiraphConstants. MAPPING_STORE_CLASSMapping related information | 
| Modifier and Type | Method and Description | 
|---|---|
| MappingStore<I,? extends org.apache.hadoop.io.Writable> | ImmutableClassesGiraphConfiguration. createMappingStore()Create a  MappingStoreinstance | 
| Modifier and Type | Method and Description | 
|---|---|
| Class<? extends MappingStore> | ImmutableClassesGiraphConfiguration. getMappingStoreClass()Get MappingStore class to be used | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | LongByteMappingStoreAn implementation of MappingStore<LongWritable, ByteWritable>
 Methods implemented here are thread safe by default because it is guaranteed
 that each entry is written to only once. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | MappingStoreOps. initialize(MappingStore<I,B> mappingStore)Must be called before anything else can be done
 on this instance | 
| void | AbstractLongByteOps. initialize(MappingStore<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.ByteWritable> mappingStore) | 
| Modifier and Type | Method and Description | 
|---|---|
| MappingStore<I,B> | LocalData. getMappingStore() | 
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