Release Notes

All releases can be accessed through the TinkerPop Maven2 repository identified below.

<repository>
  <id>tinkerpop-repository</id>
  <name>TinkerPop Maven2 Repository</name>
  <url>http://tinkerpop.com/maven2</url>
</repository>

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Version 0.7 (PVC — August 1, 2011)

<dependency>
  <groupId>com.tinkerpop</groupId>
  <artifactId>pipes</artifactId>
  <version>0.7</version>
</dependency>

Pipes 0.7 JavaDocs

• Added support for Vertex.getOutEdges(String...) and Vertex.getInEdges(String...)
• Updated AggregatorPipe to be fully SideEffectPipe compliant and to respect getPath()
• Added PipeClosure to support closure-based pipes
• Migrated all the Gremlin specific pipes to Pipes
• Refactored package names to align with pipe semantics
• Flipped the meaning of Filter, where true means pass, and false means filter
• Added AggregatorPipe PipeClosure to process object prior to insertion into the aggregate collection
• Added temporary fix for AggregatorPipe/LoopPipe phenomena
• IfThenElsePipe now requires an elseClosure

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Version 0.6 (Toilet — June 15, 2011)

<dependency>
  <groupId>com.tinkerpop</groupId>
  <artifactId>pipes</artifactId>
  <version>0.6</version>
</dependency>

Pipes 0.6 JavaDocs

• RangeFilterPipe max value is now inclusive
• Added OptionalPipe which is like BackFilterPipe, but non-filtering.
• Updated AggregatorPipe to support multiple setStarts()

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Version 0.5 (Drain — May 8, 2011)

<dependency>
  <groupId>com.tinkerpop</groupId>
  <artifactId>pipes</artifactId>
  <version>0.5</version>
</dependency>

Pipes 0.5 JavaDocs

• Added OutPipe, InPipe, and BothPipe to allow for vertex-vertex hoping
• Removed VertexEdgeLabelFilterPipe as it is now covered by more efficient pipes
• Added the MetaPipe interface to allow pipes to acknowledge pipe wrapping
• Added CopySplitPipe, ExhaustMergePipe, and FairMergePipe
• Optimized PropertyPipe and UniquePathFilterPipe
• Added support for Pipe.reset() and thus, pipe reuse

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Version 0.4 (Spigot — April 4, 2011)

<dependency>
  <groupId>com.tinkerpop</groupId>
  <artifactId>pipes</artifactId>
  <version>0.4</version>
</dependency>

Pipes 0.4 JavaDocs

• Added StartPipe to aid in creating an Object-to-Pipe converter
• Removed VertexEdge and EdgeVertex pipes for more low-level/faster pipes.
• Supports new Blueprints packaging scheme.

---

Version 0.3.1 (Mario — March 2, 2011)

<dependency>
  <groupId>com.tinkerpop</groupId>
  <artifactId>pipes</artifactId>
  <version>0.3.1</version>
</dependency>

Pipes 0.3.1 JavaDocs

• Added VertexEdgeLabelFilterPipe to reflect Blueprints Vertex API update
• Added UniquePathFilterPipe to filter paths that have visited the same object twice

Version 0.3 (Mario — January 22, 2011)

<dependency>
  <groupId>com.tinkerpop</groupId>
  <artifactId>pipes</artifactId>
  <version>0.3</version>
</dependency>

Pipes 0.3 JavaDocs

• Added a general toString() model to articulate pipe construction
• Redesigned path-model to where enablePaths() no longer required
  • Added HistoryIterator to replace the enablePath() model
• Renamed CountCombine to GroupCount
• Added ExpandableIterator to support pipe looping
• Removed many unused pipes for the sake of clarity and simplicity
• Added GatherPipe as a composite of SideEffectCapPipe and AggregatorPipe
• Removed EndSupportPipe as that is what ScatterPipe now accomplishes

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Version 0.2 (Clogged — December 14, 2010)

<dependency>
  <groupId>com.tinkerpop</groupId>
  <artifactId>pipes</artifactId>
  <version>0.2</version>
</dependency>

Pipes 0.2 JavaDocs

• Added path functionality to get the path pipe traversed
  • Added PathSequence path utility
  • Added PathPipe to support using paths in a computation
• Numerous test cases added

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Version 0.1.1 (Leaky — October 28, 2010)

<dependency>
  <groupId>com.tinkerpop</groupId>
  <artifactId>pipes</artifactId>
  <version>0.1.1</version>
</dependency>

• Fixed ‘reset pipe’ issue in FutureFilterPipe

Version 0.1 (Leaky — September 22, 2010)

<dependency>
  <groupId>com.tinkerpop</groupId>
  <artifactId>pipes</artifactId>
  <version>0.1</version>
</dependency>

Pipes 0.1 JavaDocs

• Initial release as the core engine for Gremlin 0.5