com.thinkaurelius.titan.hadoop.formats.util

Class LoaderScriptWrapper

java.lang.Object

com.thinkaurelius.titan.hadoop.formats.util.LoaderScriptWrapper

public class LoaderScriptWrapper
extends Object

Encapsulates a user-provided Gremlin-Groovy incremental loading script. Checks which methods the script provides (if any), compiles each method, and prepares context variable bindings when executing the compiled method(s).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LoaderScriptWrapper.Counters

Constructor Summary

Constructors

Constructor and Description
LoaderScriptWrapper(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path scriptPath)

Method Summary

Modifier and Type	Method and Description
TitanEdge	getEdge(FaunusEdge faunusEdge, TitanVertex in, TitanVertex out, TitanGraph graph, org.apache.hadoop.mapreduce.Mapper.Context context)
TitanVertex	getVertex(FaunusVertex faunusVertex, TitanGraph graph, org.apache.hadoop.mapreduce.Mapper.Context context)
void	getVProp(TitanProperty titanProperty, TitanVertex vertex, TitanGraph graph, org.apache.hadoop.mapreduce.Mapper.Context context)
boolean	hasEdgeMethod()
boolean	hasVertexMethod()
boolean	hasVPropMethod()

Methods inherited from class java.lang.Object

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

Constructor Detail

LoaderScriptWrapper

public LoaderScriptWrapper(org.apache.hadoop.fs.FileSystem fs,
                           org.apache.hadoop.fs.Path scriptPath)
                    throws IOException

Throws:

IOException

Method Detail

hasVertexMethod

public boolean hasVertexMethod()

hasVPropMethod

public boolean hasVPropMethod()

hasEdgeMethod

public boolean hasEdgeMethod()

getVertex

public TitanVertex getVertex(FaunusVertex faunusVertex,
                             TitanGraph graph,
                             org.apache.hadoop.mapreduce.Mapper.Context context)

getVProp

public void getVProp(TitanProperty titanProperty,
                     TitanVertex vertex,
                     TitanGraph graph,
                     org.apache.hadoop.mapreduce.Mapper.Context context)

getEdge

public TitanEdge getEdge(FaunusEdge faunusEdge,
                         TitanVertex in,
                         TitanVertex out,
                         TitanGraph graph,
                         org.apache.hadoop.mapreduce.Mapper.Context context)