ai.grakn.graql.analytics

Interface SumQuery

All Superinterfaces:

ComputeQuery<Optional<Number>>, Query<Optional<Number>>

public interface SumQuery
extends ComputeQuery<Optional<Number>>

Compute the sum of the selected resource-type.

Method Summary

Modifier and Type	Method and Description
Optional<Number>	execute() Execute the query.
SumQuery	in(Collection<String> subTypeNames)
SumQuery	in(String... subTypeNames)
SumQuery	of(Collection<String> resourceTypeNames)
SumQuery	of(String... resourceTypeNames)
SumQuery	withGraph(GraknGraph graph)

Methods inherited from interface ai.grakn.graql.Query

isReadOnly, resultsString

Method Detail

of

SumQuery of(String... resourceTypeNames)

Parameters:

resourceTypeNames - an array of types of resources to execute the query on

Returns:

a SumQuery with the subTypeNames set

of

SumQuery of(Collection<String> resourceTypeNames)

Parameters:

resourceTypeNames - a collection of types of resources to execute the query on

Returns:

a SumQuery with the subTypeNames set

in

SumQuery in(String... subTypeNames)

Specified by:

in in interface ComputeQuery<Optional<Number>>

Parameters:

subTypeNames - an array of types to include in the subgraph

Returns:

a SumQuery with the subTypeNames set

in

SumQuery in(Collection<String> subTypeNames)

Specified by:

in in interface ComputeQuery<Optional<Number>>

Parameters:

subTypeNames - a collection of types to include in the subgraph

Returns:

a SumQuery with the subTypeNames set

execute

Optional<Number> execute()

Execute the query.

Specified by:

execute in interface Query<Optional<Number>>

Returns:

the sum if the given resource types have instances, otherwise an empty Optional instance

withGraph

SumQuery withGraph(GraknGraph graph)

Specified by:

withGraph in interface ComputeQuery<Optional<Number>>

Specified by:

withGraph in interface Query<Optional<Number>>

Parameters:

graph - the graph to execute the query on

Returns:

a SumQuery with the graph set