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ASF GitHub Bot commented on TINKERPOP-1791: ------------------------------------------- Github user robertdale commented on the issue: https://github.com/apache/tinkerpop/pull/736 VOTE +1 > GremlinDsl custom step with generic end type produces invalid code in __.java > ----------------------------------------------------------------------------- > > Key: TINKERPOP-1791 > URL: https://issues.apache.org/jira/browse/TINKERPOP-1791 > Project: TinkerPop > Issue Type: Bug > Components: process > Affects Versions: 3.2.5 > Reporter: Severin Stampler > > I'm trying the create a custom step to perform a full-text search in an > external index and return the matching vertices or edges, like this: > {code:java} > @GremlinDsl(traversalSource = > "com.saillabs.mediaminer.mmgraphdsl.MMGraphTraversalSourceDsl") > public interface MMGraphTraversalDsl<S, E> extends GraphTraversal.Admin<S, E> > { > public default GraphTraversal<S, E> search(String field, String query) { > //TODO: > // Find vertex ids matching the search query in external index > > Set<String> vids = new HashSet<>(); > // for now add some hardcoded vertex ids > vids.add("vertex1"); > vids.add("vertex2"); > > return hasId(P.within(vids)); > } > > } > {code} > The code seems correct in my point of view, but the generated code in the > __.java is not compilable. It produces this error: > {noformat} > [ERROR] > /C:/svn/start/mm/mmserver/server/mvn/mmgraphdsl/target/generated-sources/annotations/com/saillabs/mediaminer/mmgraphdsl/__.java:[41,41] > cannot find symbol > [ERROR] symbol: class E > [ERROR] location: class com.saillabs.mediaminer.mmgraphdsl.__ > {noformat} > The generated code is this: > {code:java} > public static <S> MMGraphTraversal<S, E> search(String field, String query) { > return __.<S>start().search(field,query); > } > {code} > I think the correct generated code should look like this: > {code:java} > public static <S> MMGraphTraversal<S, S> search(String field, String query) { > return __.<S>start().search(field,query); > } > {code} > I think it's a bug in the GremlinDsl code generator, however, I may be wrong. > Any help is appreciated. > Thanks, br > Severin -- This message was sent by Atlassian JIRA (v6.4.14#64029)