[dna-issues] [JBoss JIRA] Created: (DNA-250) Creating a path from a parent path and a segment is not fast

[Randall Hauch (JIRA)]

Creating a path from a parent path and a segment is not fast
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                 Key: DNA-250
                 URL: https://jira.jboss.org/jira/browse/DNA-250
             Project: DNA
          Issue Type: Bug
          Components: Graph
    Affects Versions: 0.3
            Reporter: Randall Hauch
            Assignee: Randall Hauch
             Fix For: 0.3


Currently, we only have one implementation of Path, and each instance contains a list of the Path.Segment instances in the path.  Although the actual Path.Segment instances are shared when creating a path using a parent path, the actual list is not shared.  And this means new allocation for each Path.  This could be more efficient, especially since creating a path from a parent path and a name is perhaps one of the most frequently used methods.

We probably need an implementation of Path that contains a name plus a reference to a parent.  This would have a smaller memory footprint as well as be faster to create.

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