[jira] [Assigned] (TINKERPOP-1554) has(propertyKey) should have a corresponding step in Gremlin-Java.

["Marko A. Rodriguez (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TINKERPOP-1554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marko A. Rodriguez reassigned TINKERPOP-1554:
---------------------------------------------

    Assignee: Marko A. Rodriguez

> has(propertyKey) should have a corresponding step in Gremlin-Java.
> ------------------------------------------------------------------
>
>                 Key: TINKERPOP-1554
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-1554
>             Project: TinkerPop
>          Issue Type: Improvement
>          Components: process
>    Affects Versions: 3.2.3
>            Reporter: Marko A. Rodriguez
>            Assignee: Marko A. Rodriguez
>
> Currently {{has('name')}} compiles to {{filter(values('name'))}}. This is bad for a few reasons:
> 1. Its slower than a direct step.
> 2. Its nested traversals which increases reasoning time of strategies.
> 3. Its not clear from bytecode what it going on.
> I propose:
> {code}
> public class HasPropertyStep<S extends Element> implements FilterStep<S> {
>   private String propertyKey;
>   public boolean filter(final Traverser.Admin<S> traverser) {
>     return traverser.get().properties(propertyKey).hasNext();
>   }
> }
> {code}



--
This message was sent by Atlassian JIRA
(v6.3.15#6346)