public final class GraphMLReader extends Object implements GraphReader
Modifier and Type | Class and Description |
---|---|
static class |
GraphMLReader.Builder
Allows configuration and construction of the GraphMLReader instance.
|
GraphReader.ReaderBuilder<T extends GraphReader>
Modifier and Type | Method and Description |
---|---|
static GraphMLReader.Builder |
build() |
Edge |
readEdge(InputStream inputStream,
Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Edge>,Edge> edgeAttachMethod)
This method is not supported for this reader.
|
void |
readGraph(InputStream graphInputStream,
Graph graphToWriteTo)
Reads an entire graph from an
InputStream . |
<C> C |
readObject(InputStream inputStream,
Class<? extends C> clazz)
This method is not supported for this reader.
|
Property |
readProperty(InputStream inputStream,
Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Property>,Property> propertyAttachMethod)
This method is not supported for this reader.
|
Vertex |
readVertex(InputStream inputStream,
Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Vertex>,Vertex> vertexAttachMethod)
This method is not supported for this reader.
|
Vertex |
readVertex(InputStream inputStream,
Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Vertex>,Vertex> vertexAttachMethod,
Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Edge>,Edge> edgeAttachMethod,
Direction attachEdgesOfThisDirection)
This method is not supported for this reader.
|
VertexProperty |
readVertexProperty(InputStream inputStream,
Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<VertexProperty>,VertexProperty> vertexPropertyAttachMethod)
This method is not supported for this reader.
|
Iterator<Vertex> |
readVertices(InputStream inputStream,
Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Vertex>,Vertex> vertexAttachMethod,
Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Edge>,Edge> edgeAttachMethod,
Direction attachEdgesOfThisDirection)
This method is not supported for this reader.
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
readVertex
public void readGraph(InputStream graphInputStream, Graph graphToWriteTo) throws IOException
GraphReader
InputStream
. This method is mean to load an empty Graph
.
It is up to individual implementations to manage transactions, but it is not required or enforced. Consult
the documentation of an implementation to understand the approach it takes.readGraph
in interface GraphReader
graphInputStream
- a stream containing an entire graph of vertices and edges as defined by the accompanying
GraphWriter.writeGraph(OutputStream, Graph)
.graphToWriteTo
- the graph to write to when reading from the stream.IOException
public Iterator<Vertex> readVertices(InputStream inputStream, Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Vertex>,Vertex> vertexAttachMethod, Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Edge>,Edge> edgeAttachMethod, Direction attachEdgesOfThisDirection) throws IOException
readVertices
in interface GraphReader
inputStream
- a stream containing at least one Vertex
as defined by the accompanying
GraphWriter.writeVertices(OutputStream, Iterator, Direction)
or
GraphWriter.writeVertices(OutputStream, Iterator)
methods.vertexAttachMethod
- a function that creates re-attaches a Vertex
to a Host
object.edgeAttachMethod
- a function that creates re-attaches a Edge
to a Host
object.attachEdgesOfThisDirection
- only edges of this direction are passed to the edgeMaker
.UnsupportedOperationException
- when called.IOException
public Vertex readVertex(InputStream inputStream, Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Vertex>,Vertex> vertexAttachMethod) throws IOException
readVertex
in interface GraphReader
inputStream
- a stream containing at least a single vertex as defined by the accompanying
GraphWriter.writeVertex(OutputStream, Vertex)
.vertexAttachMethod
- a function that creates re-attaches a Vertex
to a Host
object.UnsupportedOperationException
- when called.IOException
public Vertex readVertex(InputStream inputStream, Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Vertex>,Vertex> vertexAttachMethod, Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Edge>,Edge> edgeAttachMethod, Direction attachEdgesOfThisDirection) throws IOException
readVertex
in interface GraphReader
inputStream
- a stream containing at least one Vertex
as defined by the accompanying
GraphWriter.writeVertices(OutputStream, Iterator, Direction)
method.vertexAttachMethod
- a function that creates re-attaches a Vertex
to a Host
object.edgeAttachMethod
- a function that creates re-attaches a Edge
to a Host
object.attachEdgesOfThisDirection
- only edges of this direction are passed to the edgeMaker
.UnsupportedOperationException
- when called.IOException
public Edge readEdge(InputStream inputStream, Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Edge>,Edge> edgeAttachMethod) throws IOException
readEdge
in interface GraphReader
inputStream
- a stream containing at least one Edge
as defined by the accompanying
GraphWriter.writeEdge(OutputStream, Edge)
method.edgeAttachMethod
- a function that creates re-attaches a Edge
to a Host
object.UnsupportedOperationException
- when called.IOException
public VertexProperty readVertexProperty(InputStream inputStream, Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<VertexProperty>,VertexProperty> vertexPropertyAttachMethod) throws IOException
readVertexProperty
in interface GraphReader
inputStream
- a stream containing at least one VertexProperty
as written by the accompanying
GraphWriter.writeVertexProperty(OutputStream, VertexProperty)
method.vertexPropertyAttachMethod
- a function that creates re-attaches a VertexProperty
to a
Host
object.UnsupportedOperationException
- when called.IOException
public Property readProperty(InputStream inputStream, Function<org.apache.tinkerpop.gremlin.structure.util.Attachable<Property>,Property> propertyAttachMethod) throws IOException
readProperty
in interface GraphReader
inputStream
- a stream containing at least one Property
as written by the accompanying
GraphWriter.writeProperty(OutputStream, Property)
method.propertyAttachMethod
- a function that creates re-attaches a Property
to a Host
object.UnsupportedOperationException
- when called.IOException
public <C> C readObject(InputStream inputStream, Class<? extends C> clazz) throws IOException
readObject
in interface GraphReader
inputStream
- a stream containing an object.clazz
- the class expected to be in the stream - may or may not be used by the underlying implementation.UnsupportedOperationException
- when called.IOException
public static GraphMLReader.Builder build()
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