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https://issues.apache.org/jira/browse/TINKERPOP-2087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stephen mallette updated TINKERPOP-2087:
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Labels: (was: features)
> 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
> Priority: Minor
>
> 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.
>
>
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