Fabian Gärtner created TINKERPOP-2087:
-----------------------------------------
Summary: It is not possible to add more then one edge property at
the same time
Key: TINKERPOP-2087
URL: https://issues.apache.org/jira/browse/TINKERPOP-2087
Project: TinkerPop
Issue Type: Bug
Components: process
Affects Versions: 3.3.4
Environment: Java with maven
Reporter: Fabian Gärtner
In java doing a property step on a edge with more then one key-value pair
creates an error
Minimal error example:
{code:java}
public static void main( String[] args ) throws Exception {
TinkerGraph g = TinkerGraph.open();
g.traversal().addV("v").as("a")
.addV("v").addE("e").to("a")
.property("key","val", "key2","val2")
.iterate();
}
{code}
The resulting error is
{code:java}
org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerEdge cannot be cast to
org.apache.tinkerpop.gremlin.structure.Vertex
{code}
In
org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.AddPropertyStep
in line 122 and 124 the element where the property should be added is casted in
a Vertex.
It looks like that the reason for this ist that the functionality to add more
than one property in one step is given in the interface
org.apache.tinkerpop.gremlin.structure.Vertex. It would be more consistent if
this functionality is given in the interface
org.apache.tinkerpop.gremlin.structure.Element.
A simple workaround is to do two property steps:
{code:java}
public static void main( String[] args ) throws Exception {
TinkerGraph g = TinkerGraph.open();
g.traversal().addV("v").as("a")
.addV("v").addE("e").to("a")
.property("key","val")
.property("key2","val2")
.iterate();
}{code}
However, at least a more meaningful error message is needed to prevent
confusion.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
