Uses of Package
org.apache.giraph.utils

Packages that use org.apache.giraph.utils

Package	Description
org.apache.giraph.comm	Package of communication related objects, IPC service.
org.apache.giraph.comm.aggregators	Package for classes which are used to handle aggregators.
org.apache.giraph.comm.messages	Package of classes for storing messages.
org.apache.giraph.comm.messages.primitives	Package of message stores specialized for a certain type of vertex ids, messages and combiner.
org.apache.giraph.comm.messages.primitives.long_id	Message store based off of primitives when I = LongWritable
org.apache.giraph.comm.messages.queue	Package for message store queue, that decouples netty threads from threads processing messages.
org.apache.giraph.comm.requests	Package for requests.
org.apache.giraph.conf	Package of Giraph configuration related things.
org.apache.giraph.edge	Package of Vertex implementations.
org.apache.giraph.edge.primitives	Package of edge stores specialized for certain type of vertex ids.
org.apache.giraph.graph	Package of all the graph related objects, built on the org.apache.bsp package.
org.apache.giraph.io.formats	Package of reusable library Giraph objects.
org.apache.giraph.metrics	Package of all the Giraph metrics related data.
org.apache.giraph.ooc.data	Package of classes related to data structures used for an out-of-core mechanism
org.apache.giraph.partition	Package of partitioning related objects.
org.apache.giraph.utils	Package of all generic utility classes.
org.apache.giraph.utils.io	Package of utility classes which add the functionality to the ones from java.io package.
org.apache.giraph.worker	Package of all the worker related things

Classes in org.apache.giraph.utils used by org.apache.giraph.comm

Class and Description
PairList Collection to keep pairs in, without creating a wrapper object around each pair of objects.
VertexIdData Stores vertex ids and data associated with a vertex
VertexIdEdges Stores vertex id and out-edges of a vertex
VertexIdMessages VertexIdMessages

Classes in org.apache.giraph.utils used by org.apache.giraph.comm.aggregators

Class and Description
ExtendedDataOutput Add a few features to data output

Classes in org.apache.giraph.utils used by org.apache.giraph.comm.messages

Class and Description
ByteStructIterable This iterable is designed to deserialize a byte array on the fly to provide new copies of writable objects when desired.
ExtendedByteArrayOutputBuffer Wraps a list of byte array outputs and provides convenient utilities on top of it
ExtendedDataInput Add some functionality to data input
Factory Factory for any kind of objects
RepresentativeByteStructIterable The objects provided by the iterators generated from this object have lifetimes only until next() is called.
VertexIdIterator Common implementation for VertexIdEdgeIterator, VertexIdMessageIterator and VertexIdMessageBytesIterator.
VertexIdMessages VertexIdMessages

Classes in org.apache.giraph.utils used by org.apache.giraph.comm.messages.primitives

Class and Description
VertexIdMessages VertexIdMessages

Classes in org.apache.giraph.utils used by org.apache.giraph.comm.messages.primitives.long_id

Class and Description
VertexIdMessages VertexIdMessages

Classes in org.apache.giraph.utils used by org.apache.giraph.comm.messages.queue

Class and Description
VertexIdMessages VertexIdMessages

Classes in org.apache.giraph.utils used by org.apache.giraph.comm.requests

Class and Description
ByteArrayOneMessageToManyIds Stores a message and a list of target vertex ids.
ByteArrayVertexIdMessages Stores vertex id and message pairs in a single byte array.
ExtendedDataOutput Add a few features to data output
PairList Collection to keep pairs in, without creating a wrapper object around each pair of objects.
UnsafeByteArrayInputStream UnsafeByteArrayInputStream This stream now extends com.esotericsoftware.kryo.io.Input so that kryo serialization can directly read from this stream without using an additional buffer, providing a faster serialization.
VertexIdData Stores vertex ids and data associated with a vertex
VertexIdEdges Stores vertex id and out-edges of a vertex
VertexIdMessages VertexIdMessages

Classes in org.apache.giraph.utils used by org.apache.giraph.conf

Class and Description
ExtendedDataInput Add some functionality to data input
ExtendedDataOutput Add a few features to data output
GcObserver Observer for when GCs occur

Classes in org.apache.giraph.utils used by org.apache.giraph.edge

Class and Description
ThreadLocalProgressCounter Makes a list of ProgressCounter accessible through a ThreadLocal.
Trimmable Interface for OutEdges and Vertex implementations capable to optimize in-memory data representation.
VertexIdEdgeIterator Special iterator that reuses vertex ids and edge objects so that the lifetime of the object is only until next() is called.
VertexIdEdges Stores vertex id and out-edges of a vertex

Classes in org.apache.giraph.utils used by org.apache.giraph.edge.primitives

Class and Description
VertexIdEdgeIterator Special iterator that reuses vertex ids and edge objects so that the lifetime of the object is only until next() is called.

Classes in org.apache.giraph.utils used by org.apache.giraph.graph

Class and Description
Trimmable Interface for OutEdges and Vertex implementations capable to optimize in-memory data representation.

Classes in org.apache.giraph.utils used by org.apache.giraph.io.formats

Class and Description
IntPair A pair of integers.
TestGraph TestGraph class for in-memory testing.

Classes in org.apache.giraph.utils used by org.apache.giraph.metrics

Class and Description
GcTracker Tracks last k GC pauses and is able to tell how much time was spent doing GC since some point in time.

Classes in org.apache.giraph.utils used by org.apache.giraph.ooc.data

Class and Description
ExtendedDataOutput Add a few features to data output
VertexIdEdges Stores vertex id and out-edges of a vertex
VertexIdMessages VertexIdMessages

Classes in org.apache.giraph.utils used by org.apache.giraph.partition

Class and Description
ExtendedDataOutput Add a few features to data output
VertexIterator Iterates over vertices stored in an ExtendedDataOutput such that the ownership of the vertex id can be transferred to another object.

Classes in org.apache.giraph.utils used by org.apache.giraph.utils

Class and Description
AbstractVertexIdData Partial implementation of vertexIdData
ArrayListWritable A Writable for ListArray containing instances of a class.
ByteArrayOneMessageToManyIds Stores a message and a list of target vertex ids.
ByteArrayVertexIdData Stores pairs of vertex id and generic data in a single byte array
ByteStructIterable This iterable is designed to deserialize a byte array on the fly to provide new copies of writable objects when desired.
ByteStructIterator This iterator is designed to deserialize a byte array on the fly to provide new copies of writable objects when desired.
ByteStructVertexIdDataIterator Special iterator that reuses vertex ids and data objects so that the lifetime of the object is only until next() is called.
ByteStructVertexIdEdgeIterator Special iterator that reuses vertex ids and edge objects so that the lifetime of the object is only until next() is called.
ByteStructVertexIdIterator Common implementation for VertexIdEdgeIterator, VertexIdMessageIterator and VertexIdMessageBytesIterator.
ByteStructVertexIdMessageBytesIterator Special iterator that reuses vertex ids and messages bytes so that the lifetime of the object is only until next() is called.
ByteStructVertexIdMessageIterator Special iterator that reuses vertex ids and message objects so that the lifetime of the object is only until next() is called.
CallableFactory Factory for creating Callables
ExtendedByteArrayOutputBuffer.IndexAndDataOut Holder for index & DataOutput objects
ExtendedDataInput Add some functionality to data input
ExtendedDataOutput Add a few features to data output
Factory Factory for any kind of objects
GiraphDepVersions Versions of Giraph dependencies.
PairList.Iterator Special iterator class which we'll use to iterate through elements of PairList, without having to create new object as wrapper for each pair.
ProgressCounter Used to keep track of a metric.
TestGraph TestGraph class for in-memory testing.
UnsafeArrayReads Byte array input stream that uses Unsafe methods to deserialize much faster
UnsafeByteArrayOutputStream Byte array output stream that uses Unsafe methods to serialize/deserialize much faster.
UnsafeReads Byte array input stream that uses Unsafe methods to deserialize much faster
UnsafeReusableByteArrayInput UnsafeReusableByteArrayInput is a data structure to read from a byte buffer with a read pointer that can be moved to desired location
VertexIdData Stores vertex ids and data associated with a vertex
VertexIdDataIterator Special iterator that reuses vertex ids and data objects so that the lifetime of the object is only until next() is called.
VertexIdEdgeIterator Special iterator that reuses vertex ids and edge objects so that the lifetime of the object is only until next() is called.
VertexIdEdges Stores vertex id and out-edges of a vertex
VertexIdIterator Common implementation for VertexIdEdgeIterator, VertexIdMessageIterator and VertexIdMessageBytesIterator.
VertexIdMessageBytesIterator Special iterator that reuses vertex ids and messages bytes so that the lifetime of the object is only until next() is called.
VertexIdMessageIterator Special iterator that reuses vertex ids and message objects so that the lifetime of the object is only until next() is called.
VertexIdMessages VertexIdMessages
YourKitContext Convenience context for profiling.

Classes in org.apache.giraph.utils used by org.apache.giraph.utils.io

Class and Description
ExtendedDataInput Add some functionality to data input
ExtendedDataOutput Add a few features to data output
Factory Factory for any kind of objects

Classes in org.apache.giraph.utils used by org.apache.giraph.worker

Class and Description
CallableFactory Factory for creating Callables