- Changed Flink version to
1.9.3
- Temporal Pattern Matching using Temporal-GDL added
- Temporal verify operator added
- More Gelly-based algorithms are available for
TemporalGraph
- Min and Max aggregations can now be applied on date and datetime types
- Duration aggregations have now an optional
unit parameter to define a time unit (e.g., Minutes)
- Indexed CSV Source/Sink added (also for temporal graphs)
- Some bugfixes in MinimalCSVImporter
- Improved testing and stability
- improved gdl error handling
- added basic vertex deduplication
- implemented distributed graph layouting
- moved capf into new repository gradoop-capf
- improved temporal graph handling
gradoop-temporal module added
- Temporal Property Graph Model (TPGM) implementation
diff and snapshot operators for TPGM- some commonly used temporal predicates
- examples for temporal operator usages
equals and print support- support for generified operators
- Fixed bug in cypher constructor patterns
- Reorganized
hbase dependency
- Remove
hbase dependencies from gradoop-flink
- Fixed incorrectly escaped chars in DOT output
- Added overwrite parameter for CSV output
- Added new grouping operator using key functions (
KeyedGrouping)
- Added key functions for grouping on temporal infos
- API Changes - Interfaces
EPGMEdge, EPGMVertex, EPGMGraphHead renamed to Edge, Vertex and GraphHead
- API Changes - Instance classes
Edge, Vertex and GraphHead renamed to EPGMEdge, EPGMVertex, EPGMGraphHead
- Logical Graph Operators generalized
- Graph Collection operators generalized
- VerifyGraph(s)Containment operator added
gradoop-examples module is refactored- ElementFactories are now part of the BaseFactory (not part of config)
- Enhanced comparison of property values
- Deprecated JSON source and sink removed
- Support for Maven 3.6
- Upgrade Flink dependency from
1.7.0 to 1.7.2
- Integration of Cypher on Apache Flink (CAPF) to support OpenCypher queries
- Improvement of CSVDataSource
- Added Graph ETL operators to module
gradoop-data-integration
- Added Degree Centrality operator
- Added Random Walk operator
- Added Verify operator to remove dangling edges
- Refactored PropertyValue class according to strategy pattern
- Added overwrite support for HBaseDataSink
- Upgrade Flink dependency from
1.6.0 to 1.7.0
- Generalized Subgraph, Transformation and Property Transformation operators
- Generalized MetaData construct
- Refactored GradoopId to no longer use MongoDB
- Added RollUp example
- Added support to construct GraphCollection from mutliple LogicalGraphs
- Added simple importers for CSV and JSON files
- Upgrade Flink dependency from
1.5.0 to 1.6.0
gradoop-data-integration module added- Fixed bugs in
IndexedCSVDataSink
- Sampling Benchmarks added
- Datagen-package removed from Gradoop
- Clustering coefficient computation addded
- Triangle counting added
- Rollup-Operator added
- Unified aggregate functions now applicable to both aggregate and grouping operator
- PageRank sampling added
- Mockito added for testing support
- Multiple aggregation functions in a single aggregation operator
- GraphCollection support for CSV Source/Sink
- LGTM code quality badge
- PropertyTransformation operator added
- Weakly Connected Components runner added
- CSV delimiter escaping
- Cypher, Subgraph and SNA Benchmarks added
- Predicate pushdown for HBase available
- Split property type and value in HBase table layout
NULL and Set support in PropertyValues- Code coverage report
- Support graphs without edges
.print() added for LogicalGraph and GraphCollection- Aggregation example added
- Sampling algorithms extended incl. Graph density computation
- Upgrade Flink from
1.3.1 to 1.5.0
- JSONDataSource and JSONDataSink are now marked as deprecated
- CSVDataSource and CSVDataSink supporting all available property value types
- IndexedCSVDataSink added
- Added Gradoop-Store module with Apache Accumulo and HBase support
- Added Store Api with manual predicate pushdown (for Accumulo DataSource)
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