GetElementsWithinSet

See javadoc - uk.gov.gchq.gaffer.accumulostore.operation.impl.GetElementsWithinSet

Available since Gaffer version 1.0.0

Gets edges with both vertices in a given set and entities with vertices in a given set

Required fields

No required fields

Examples

Get elements within set of vertices 1 and 2 and 3

Java
JSON
Full JSON
Python
final GetElementsWithinSet operation = new GetElementsWithinSet.Builder()
        .input(new EntitySeed(1), new EntitySeed(2), new EntitySeed(3))
        .build();
{
  "class" : "GetElementsWithinSet",
  "input" : [ {
    "class" : "EntitySeed",
    "vertex" : 1
  }, {
    "class" : "EntitySeed",
    "vertex" : 2
  }, {
    "class" : "EntitySeed",
    "vertex" : 3
  } ]
}
{
  "class" : "uk.gov.gchq.gaffer.accumulostore.operation.impl.GetElementsWithinSet",
  "input" : [ {
    "class" : "uk.gov.gchq.gaffer.operation.data.EntitySeed",
    "vertex" : 1
  }, {
    "class" : "uk.gov.gchq.gaffer.operation.data.EntitySeed",
    "vertex" : 2
  }, {
    "class" : "uk.gov.gchq.gaffer.operation.data.EntitySeed",
    "vertex" : 3
  } ]
}
g.GetElementsWithinSet( 
  input=[ 
    g.EntitySeed( 
      vertex=1 
    ), 
    g.EntitySeed( 
      vertex=2 
    ), 
    g.EntitySeed( 
      vertex=3 
    ) 
  ] 
)

The results are:

Entity[vertex=1,group=entity,properties=Properties[count=<java.lang.Integer>3]]
Edge[source=1,destination=2,directed=true,matchedVertex=SOURCE,group=edge,properties=Properties[count=<java.lang.Integer>3]]
Entity[vertex=2,group=entity,properties=Properties[count=<java.lang.Integer>1]]
Edge[source=2,destination=3,directed=true,matchedVertex=SOURCE,group=edge,properties=Properties[count=<java.lang.Integer>2]]
Entity[vertex=3,group=entity,properties=Properties[count=<java.lang.Integer>2]]

Get elements within set of vertices 1 and 2 and 3 with count greater than 2

Java
JSON
Full JSON
Python
final GetElementsWithinSet operation = new GetElementsWithinSet.Builder()
        .input(new EntitySeed(1), new EntitySeed(2), new EntitySeed(3))
        .view(new View.Builder()
                .entity("entity", new ViewElementDefinition.Builder()
                        .preAggregationFilter(new ElementFilter.Builder()
                                .select("count")
                                .execute(new IsMoreThan(2))
                                .build())
                        .build())
                .edge("edge", new ViewElementDefinition.Builder()
                        .preAggregationFilter(new ElementFilter.Builder()
                                .select("count")
                                .execute(new IsMoreThan(2))
                                .build())
                        .build())
                .build())
        .build();
{
  "class" : "GetElementsWithinSet",
  "input" : [ {
    "class" : "EntitySeed",
    "vertex" : 1
  }, {
    "class" : "EntitySeed",
    "vertex" : 2
  }, {
    "class" : "EntitySeed",
    "vertex" : 3
  } ],
  "view" : {
    "edges" : {
      "edge" : {
        "preAggregationFilterFunctions" : [ {
          "selection" : [ "count" ],
          "predicate" : {
            "class" : "IsMoreThan",
            "orEqualTo" : false,
            "value" : 2
          }
        } ]
      }
    },
    "entities" : {
      "entity" : {
        "preAggregationFilterFunctions" : [ {
          "selection" : [ "count" ],
          "predicate" : {
            "class" : "IsMoreThan",
            "orEqualTo" : false,
            "value" : 2
          }
        } ]
      }
    }
  }
}
{
  "class" : "uk.gov.gchq.gaffer.accumulostore.operation.impl.GetElementsWithinSet",
  "input" : [ {
    "class" : "uk.gov.gchq.gaffer.operation.data.EntitySeed",
    "vertex" : 1
  }, {
    "class" : "uk.gov.gchq.gaffer.operation.data.EntitySeed",
    "vertex" : 2
  }, {
    "class" : "uk.gov.gchq.gaffer.operation.data.EntitySeed",
    "vertex" : 3
  } ],
  "view" : {
    "edges" : {
      "edge" : {
        "preAggregationFilterFunctions" : [ {
          "selection" : [ "count" ],
          "predicate" : {
            "class" : "uk.gov.gchq.koryphe.impl.predicate.IsMoreThan",
            "orEqualTo" : false,
            "value" : 2
          }
        } ]
      }
    },
    "entities" : {
      "entity" : {
        "preAggregationFilterFunctions" : [ {
          "selection" : [ "count" ],
          "predicate" : {
            "class" : "uk.gov.gchq.koryphe.impl.predicate.IsMoreThan",
            "orEqualTo" : false,
            "value" : 2
          }
        } ]
      }
    }
  }
}
g.GetElementsWithinSet( 
  view=g.View( 
    entities=[ 
      g.ElementDefinition( 
        group="entity", 
        pre_aggregation_filter_functions=[ 
          g.PredicateContext( 
            selection=[ 
              "count" 
            ], 
            predicate=g.IsMoreThan( 
              value=2, 
              or_equal_to=False 
            ) 
          ) 
        ] 
      ) 
    ], 
    edges=[ 
      g.ElementDefinition( 
        group="edge", 
        pre_aggregation_filter_functions=[ 
          g.PredicateContext( 
            selection=[ 
              "count" 
            ], 
            predicate=g.IsMoreThan( 
              value=2, 
              or_equal_to=False 
            ) 
          ) 
        ] 
      ) 
    ], 
    all_edges=False, 
    all_entities=False 
  ), 
  input=[ 
    g.EntitySeed( 
      vertex=1 
    ), 
    g.EntitySeed( 
      vertex=2 
    ), 
    g.EntitySeed( 
      vertex=3 
    ) 
  ] 
)

The results are:

Entity[vertex=1,group=entity,properties=Properties[count=<java.lang.Integer>3]]
Edge[source=1,destination=2,directed=true,matchedVertex=SOURCE,group=edge,properties=Properties[count=<java.lang.Integer>3]]

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