| Package | Description | 
|---|---|
| org.apache.giraph.conf | Package of Giraph configuration related things. | 
| org.apache.giraph.io.formats | Package of reusable library Giraph objects. | 
| org.apache.giraph.io.internal | Input/Output classes for internal use only. | 
| Modifier and Type | Field and Description | 
|---|---|
| static ClassConfOption<VertexOutputFormat> | GiraphConstants. VERTEX_OUTPUT_FORMAT_CLASSVertexOutputFormat class | 
| protected Class<? extends VertexOutputFormat<I,V,E>> | GiraphClasses. vertexOutputFormatClassVertex output format class - cached for fast access | 
| Modifier and Type | Method and Description | 
|---|---|
| Class<? extends VertexOutputFormat<I,V,E>> | GiraphClasses. getVertexOutputFormatClass()Get VertexOutputFormat set | 
| Class<? extends VertexOutputFormat<I,V,E>> | ImmutableClassesGiraphConfiguration. getVertexOutputFormatClass()Get the user's subclassed
  VertexOutputFormat. | 
| Modifier and Type | Method and Description | 
|---|---|
| GiraphClasses | GiraphClasses. setVertexOutputFormatClass(Class<? extends VertexOutputFormat<I,V,E>> vertexOutputFormatClass)Set VertexOutputFormat held | 
| void | GiraphConfiguration. setVertexOutputFormatClass(Class<? extends VertexOutputFormat> vertexOutputFormatClass)Set the vertex output format class (optional) | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | AdjacencyListTextVertexOutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>OutputFormat to write out the graph nodes as text, value-separated (by
 tabs, by default). | 
| class  | GraphvizOutputFormatWrites graph to a dot file (graphviz format). | 
| class  | IdWithValueTextOutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>Write out Vertices' IDs and values, but not their edges nor edges' values. | 
| class  | InMemoryVertexOutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>VertexOutputFormat which stores all vertices in memory | 
| class  | JsonBase64VertexOutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>Simple way to represent the structure of the graph with a JSON object. | 
| class  | JsonLongDoubleFloatDoubleVertexOutputFormatVertexOutputFormat that supports JSON encoded vertices featuring
  doublevalues andfloatout-edge weights | 
| class  | SequenceFileVertexOutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable,OK extends org.apache.hadoop.io.Writable,OV extends org.apache.hadoop.io.Writable>Sequence file vertex output format. | 
| class  | TextVertexOutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>Abstract class that users should subclass to use their own text based
 vertex output format. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | WrappedVertexOutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>For internal use only. | 
| Constructor and Description | 
|---|
| WrappedVertexOutputFormat(VertexOutputFormat<I,V,E> vertexOutputFormat)Constructor | 
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