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Where is my data?
Implementing GraphDB capabilities
in XPages
Oliver Busse
We4IT GmbH, Germany
April 13, 2016
Oliver Busse
• „Bleeding Yellow“ since R4.5
• Software Architect at We4IT
• Member of the development team of
Aveedo® Application Framework
• IBM Champion for ICS in 2015 + 2016
• OpenNTF Member Director
• XPages Advocate
• IBM Bluemix curious
@zeromancer1972
www.oliverbusse.com
„Graphs“
http://whatis.techtarget.com/definition/graph-database
Graph DB
A graph database, also called a graph-oriented database, is a type of NoSQL database
that uses graph theory to store, map and query relationships.
A graph database is essentially a collection of nodes and edges. Each node represents
an entity (such as a person or business) and each edge represents a connection or
relationship between two nodes.
http://whatis.techtarget.com/definition/graph-database
Some Graph DBs & Frameworks
• Neo4J
• OrientDB
• DEX
• Tinkerpop
• Apache Lucene / Solr
Who is using Graph DBs?
• Amazon
• Google
• Facebook
• …almost every application that offers something like
• „related posts“ (blogs)
• „others also bought this“ (shops)
• collect relations and „likes“
• …
Graphs – terminology
• Vertices (Nodes)
• Properties (Key-Value pairs)
• Edges
• Connections, Relations between Vertices
• ElementStores
• for us: NSF databases
• MetaverseIDs
• Replica + UNID (hashed)
• internal use only (don‘t care about them)
Graph DB – in Domino?
• Vertices and Edges are stored as Documents
• The data container is a NSF
• The ElementStore defines the filepath to the NSF
• An ElementStore can hold different types of Vertices
• Usually you create one ElementStore for each Vertice type
Data Modelling & Implementation
• Nodes are defined as Interfaces
• Fields are defined as properties with Getter and Setter
• Methods define how the Node can build Edges to other Vertices
• Methods also return all Edges to a certain Vertice
Init the Graph
• Define the Element Store(s)
• Add Element Store(s) to the Graph Configuration
• Define the DFramedTransactionalGraph object with the Graph
Configuration
• Work with the Graph object
Create an Edge
• Parameterize Object 1
• Get Object 2 by a unique key
• Call one of the „add“ methods of your Node class
• Commit your changes
Let‘s see the demo &
some code
Resources
• The XPages demo application
• https://bitbucket.org/zeromancer1972/sutol-2015-oda-graph-demo
• http://notesx.net:8090/obusse/ec16
• A nice glossary
• http://www.intec.co.uk/from-xpages-to-web-app-glossary/
• OpenNTF Domino API
• http://www.openntf.org/main.nsf/project.xsp?r=project/OpenNTF%20Domino%20API
• http://www.openntf.org/main.nsf/project.xsp?r=project/OpenNTF%20Domino%20API%20Demo%20Database
• Xots
• http://www.intec.co.uk/xots-background-and-multithreaded-tasks-the-openntf-domino-api-way-part-one/
• http://www.intec.co.uk/xots-background-and-multithreaded-tasks-the-openntf-domino-api-way-part-two/
• http://www.intec.co.uk/xots-background-and-multithreaded-tasks-the-openntf-domino-api-way-part-three/
• Graphs
• http://de.slideshare.net/ktree19/the-graph-revolution
Q & A
GraphDb in XPages

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GraphDb in XPages

  • 1. Where is my data? Implementing GraphDB capabilities in XPages Oliver Busse We4IT GmbH, Germany April 13, 2016
  • 2. Oliver Busse • „Bleeding Yellow“ since R4.5 • Software Architect at We4IT • Member of the development team of Aveedo® Application Framework • IBM Champion for ICS in 2015 + 2016 • OpenNTF Member Director • XPages Advocate • IBM Bluemix curious @zeromancer1972 www.oliverbusse.com
  • 4. Graph DB A graph database, also called a graph-oriented database, is a type of NoSQL database that uses graph theory to store, map and query relationships. A graph database is essentially a collection of nodes and edges. Each node represents an entity (such as a person or business) and each edge represents a connection or relationship between two nodes. http://whatis.techtarget.com/definition/graph-database
  • 5. Some Graph DBs & Frameworks • Neo4J • OrientDB • DEX • Tinkerpop • Apache Lucene / Solr
  • 6. Who is using Graph DBs? • Amazon • Google • Facebook • …almost every application that offers something like • „related posts“ (blogs) • „others also bought this“ (shops) • collect relations and „likes“ • …
  • 7. Graphs – terminology • Vertices (Nodes) • Properties (Key-Value pairs) • Edges • Connections, Relations between Vertices • ElementStores • for us: NSF databases • MetaverseIDs • Replica + UNID (hashed) • internal use only (don‘t care about them)
  • 8. Graph DB – in Domino? • Vertices and Edges are stored as Documents • The data container is a NSF • The ElementStore defines the filepath to the NSF • An ElementStore can hold different types of Vertices • Usually you create one ElementStore for each Vertice type
  • 9. Data Modelling & Implementation • Nodes are defined as Interfaces • Fields are defined as properties with Getter and Setter • Methods define how the Node can build Edges to other Vertices • Methods also return all Edges to a certain Vertice
  • 10. Init the Graph • Define the Element Store(s) • Add Element Store(s) to the Graph Configuration • Define the DFramedTransactionalGraph object with the Graph Configuration • Work with the Graph object
  • 11. Create an Edge • Parameterize Object 1 • Get Object 2 by a unique key • Call one of the „add“ methods of your Node class • Commit your changes
  • 12. Let‘s see the demo & some code
  • 13. Resources • The XPages demo application • https://bitbucket.org/zeromancer1972/sutol-2015-oda-graph-demo • http://notesx.net:8090/obusse/ec16 • A nice glossary • http://www.intec.co.uk/from-xpages-to-web-app-glossary/ • OpenNTF Domino API • http://www.openntf.org/main.nsf/project.xsp?r=project/OpenNTF%20Domino%20API • http://www.openntf.org/main.nsf/project.xsp?r=project/OpenNTF%20Domino%20API%20Demo%20Database • Xots • http://www.intec.co.uk/xots-background-and-multithreaded-tasks-the-openntf-domino-api-way-part-one/ • http://www.intec.co.uk/xots-background-and-multithreaded-tasks-the-openntf-domino-api-way-part-two/ • http://www.intec.co.uk/xots-background-and-multithreaded-tasks-the-openntf-domino-api-way-part-three/ • Graphs • http://de.slideshare.net/ktree19/the-graph-revolution
  • 14. Q & A