Marko A. Rodriguez created TINKERPOP-1162:
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Summary: Add VertexProgram.getTransientComputeKeys() for removing
scratch-data.
Key: TINKERPOP-1162
URL: https://issues.apache.org/jira/browse/TINKERPOP-1162
Project: TinkerPop
Issue Type: Improvement
Components: process
Affects Versions: 3.1.0-incubating
Reporter: Marko A. Rodriguez
Assignee: Marko A. Rodriguez
Fix For: 3.2.0-incubating
When you run a PageRankVertexProgram or a PeerPressureVertexProgram, you have
an {{edgeCount}} property which is used for determining the weight
distribution. This is just some "scratch pad data." We need a way to tell the
GraphComputer which properties are "scratch pad" and thus, delete them before
outputting the `ComputerResult`.
I propose:
{code}
Set<String> VertexProgram.getTransientComputeKeys()
{code}
We can have a default that returns {{Collections.emptySet()}}. This would be
breaking as the GraphComputer provider will need to handle dropping such
properties. This, of course, will be verified in a
{{GraphComputerTest.shouldSupportTransientProperties()}}.
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