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From spmalle...@apache.org
Subject [13/17] tinkerpop git commit: Added some additional examples to appendix recipes.
Date Tue, 17 Jan 2017 17:23:26 GMT
Added some additional examples to appendix recipes.


Project: http://git-wip-us.apache.org/repos/asf/tinkerpop/repo
Commit: http://git-wip-us.apache.org/repos/asf/tinkerpop/commit/4be8a1b2
Tree: http://git-wip-us.apache.org/repos/asf/tinkerpop/tree/4be8a1b2
Diff: http://git-wip-us.apache.org/repos/asf/tinkerpop/diff/4be8a1b2

Branch: refs/heads/tp32
Commit: 4be8a1b2ec8c15aee1c84199e560687a1e3fdf39
Parents: 0fbfd75
Author: Stephen Mallette <spmva@genoprime.com>
Authored: Thu Jan 12 08:06:07 2017 -0500
Committer: Stephen Mallette <spmva@genoprime.com>
Committed: Thu Jan 12 08:06:07 2017 -0500

----------------------------------------------------------------------
 docs/src/recipes/appendix.asciidoc       | 23 +++++++++++++++++++++++
 docs/src/recipes/duplicate-edge.asciidoc | 18 ++++++++++++++++++
 2 files changed, 41 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/tinkerpop/blob/4be8a1b2/docs/src/recipes/appendix.asciidoc
----------------------------------------------------------------------
diff --git a/docs/src/recipes/appendix.asciidoc b/docs/src/recipes/appendix.asciidoc
index 9038cea..9d0ea7b 100644
--- a/docs/src/recipes/appendix.asciidoc
+++ b/docs/src/recipes/appendix.asciidoc
@@ -43,6 +43,29 @@ g.V().as('p').
                by(count(local)).by()).next()
 ----
 
+It might also be alternatively written as:
+
+[gremlin-groovy,existing]
+----
+g.V().group().
+        by('name').
+        by(project('numFollowers','followers').
+             by(__.in('follows').count()).
+             by(__.in('follows').values('name').fold())).next()
+----
+
+or even:
+
+[gremlin-groovy,existing]
+----
+g.V().group().
+        by('name').
+        by(__.in('follows').values('name').fold().
+            project('numFollowers','followers').
+              by(count(local)).
+              by()).next()
+----
+
 [[appendix-b]]
 _In the "modern" graph, show each person, the software they worked on and the co-worker count
for the software and
 the names of those co-workers._

http://git-wip-us.apache.org/repos/asf/tinkerpop/blob/4be8a1b2/docs/src/recipes/duplicate-edge.asciidoc
----------------------------------------------------------------------
diff --git a/docs/src/recipes/duplicate-edge.asciidoc b/docs/src/recipes/duplicate-edge.asciidoc
index ed56106..a62716e 100644
--- a/docs/src/recipes/duplicate-edge.asciidoc
+++ b/docs/src/recipes/duplicate-edge.asciidoc
@@ -86,6 +86,24 @@ the outgoing vertex, the edge label, and the incoming vertex as the key,
with th
 value.
 <4> The rest of the traversal is the same as the previous one.
 
+Note that the above traversal could also be written using `match` step:
+
+[gremlin-groovy,existing]
+----
+g.V().match(
+    __.as("ov").outE().as("e"),
+    __.as("e").inV().as("iv"),
+    __.as("iv").inE().as("ie"),
+    __.as("ie").outV().as("ov")).
+      where("ie",neq("e")).
+      where("ie",eq("e")).by(label).
+    select("ie").
+    group().
+      by(select("ov","e","iv").by().by(label)).
+    unfold().select(values).
+      where(count(local).is(gt(1)))
+----
+
 A third way to approach this problem would be to force a link:https://en.wikipedia.org/wiki/Depth-first_search[depth-first
search].
 The previous examples invoke traversal strategies that force a link:https://en.wikipedia.org/wiki/Breadth-first_search[breadth
first search]
 as a performance optimization.


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