io.kgraph.pregel

Class ComputeFunction.Callback<K,VV,EV,Message>

java.lang.Object

io.kgraph.pregel.ComputeFunction.Callback<K,VV,EV,Message>

All Implemented Interfaces:

ComputeFunction.ReadAggregators, ComputeFunction.ReadWriteAggregators

Enclosing interface:

ComputeFunction<K,VV,EV,Message>

public static final class ComputeFunction.Callback<K,VV,EV,Message>
extends Object
implements ComputeFunction.ReadWriteAggregators

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<String,Map<K,?>>	aggregators
protected org.apache.kafka.streams.processor.ProcessorContext	context
protected org.apache.kafka.streams.state.TimestampedKeyValueStore<K,Map<K,EV>>	edgesStore
protected K	key
protected VV	newVertexValue
protected Map<K,List<Message>>	outgoingMessages
protected Map<String,?>	previousAggregates
protected boolean	voteToHalt

Constructor Summary

Constructors

Constructor and Description
Callback(org.apache.kafka.streams.processor.ProcessorContext context, K key, org.apache.kafka.streams.state.TimestampedKeyValueStore<K,Map<K,EV>> edgesStore, Map<String,?> previousAggregates, Map<String,Map<K,?>> aggregators)

Method Summary

Modifier and Type	Method and Description
void	addEdge(K target, EV value)
<T> void	aggregate(String name, T value)
<T> T	getAggregatedValue(String name)
void	removeEdge(K target)
void	sendMessageTo(K target, Message m)
void	setNewEdgeValue(K target, EV value)
void	setNewVertexValue(VV vertexValue)
void	voteToHalt()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

context

protected final org.apache.kafka.streams.processor.ProcessorContext context

key

protected final K key

edgesStore

protected final org.apache.kafka.streams.state.TimestampedKeyValueStore<K,Map<K,EV>> edgesStore

newVertexValue

protected VV newVertexValue

outgoingMessages

protected final Map<K,List<Message>> outgoingMessages

voteToHalt

protected boolean voteToHalt

previousAggregates

protected final Map<String,?> previousAggregates

aggregators

protected final Map<String,Map<K,?>> aggregators

Constructor Detail

Callback

public Callback(org.apache.kafka.streams.processor.ProcessorContext context,
                K key,
                org.apache.kafka.streams.state.TimestampedKeyValueStore<K,Map<K,EV>> edgesStore,
                Map<String,?> previousAggregates,
                Map<String,Map<K,?>> aggregators)

Method Detail

sendMessageTo

public final void sendMessageTo(K target,
                                Message m)

setNewVertexValue

public final void setNewVertexValue(VV vertexValue)

addEdge

public final void addEdge(K target,
                          EV value)

removeEdge

public final void removeEdge(K target)

setNewEdgeValue

public final void setNewEdgeValue(K target,
                                  EV value)

voteToHalt

public void voteToHalt()

getAggregatedValue

public final <T> T getAggregatedValue(String name)

Specified by:

getAggregatedValue in interface ComputeFunction.ReadAggregators

aggregate

public final <T> void aggregate(String name,
                                T value)

Specified by:

aggregate in interface ComputeFunction.ReadWriteAggregators