Package se.liu.ida.hefquin.engine.wrappers.graphql.utils

Class GraphQLQueryRootForStarPattern

java.lang.Object

se.liu.ida.hefquin.engine.wrappers.graphql.utils.GraphQLQueryRootForStarPattern

public class GraphQLQueryRootForStarPattern
extends Object

An class for objects that wrap a StarPattern and provide functionality for creating the root field of a GraphQL query based on the star pattern.

Field Summary

Fields

Modifier and Type	Field	Description
protected final GraphQL2RDFConfiguration	config
protected final GraphQLSchema	schema
protected final StarPattern	sp

Constructor Summary

Constructors

Constructor	Description
GraphQLQueryRootForStarPattern(StarPattern sp, GraphQL2RDFConfiguration config, GraphQLSchema schema)

Method Summary

Modifier and Type	Method	Description
protected Map<String,org.apache.jena.graph.impl.LiteralLabel>	determineGraphQLArguments()
protected GraphQLEntrypoint	determineGraphQLEntryPoint()
protected String	determineGraphQLObjectType()
boolean	equals(Object o)
final Map<String,org.apache.jena.graph.impl.LiteralLabel>	getGraphQLArguments()	Returns a map representing the arguments that can be used from the given star pattern.
final GraphQLEntrypoint	getGraphQLEntryPoint()	Returns the relevant entry point with regards to if the corresponding star pattern has the required arguments.
final String	getGraphQLObjectType()	Returns the GraphQL object type that corresponds to the star pattern or null if the type cannot be determined.
StarPattern	getStarPattern()
int	hashCode()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Details

sp

protected final StarPattern sp

config

protected final GraphQL2RDFConfiguration config

schema

protected final GraphQLSchema schema

Constructor Details

GraphQLQueryRootForStarPattern

public GraphQLQueryRootForStarPattern(StarPattern sp,
 GraphQL2RDFConfiguration config,
 GraphQLSchema schema)

Method Details

getStarPattern

public StarPattern getStarPattern()

getGraphQLObjectType

public final String getGraphQLObjectType()

Returns the GraphQL object type that corresponds to the star pattern or null if the type cannot be determined.

getGraphQLArguments

public final Map<String,org.apache.jena.graph.impl.LiteralLabel> getGraphQLArguments()

Returns a map representing the arguments that can be used from the given star pattern. The predicate from a TP needs to be a property URI and the object needs to be a literal

getGraphQLEntryPoint

public final GraphQLEntrypoint getGraphQLEntryPoint()
                                             throws QueryTranslatingException

Returns the relevant entry point with regards to if the corresponding star pattern has the required arguments.

Throws:

QueryTranslatingException - if no valid entrypoint was found.

determineGraphQLObjectType

protected String determineGraphQLObjectType()

determineGraphQLArguments

protected Map<String,org.apache.jena.graph.impl.LiteralLabel> determineGraphQLArguments()

determineGraphQLEntryPoint

protected GraphQLEntrypoint determineGraphQLEntryPoint()
                                                throws QueryTranslatingException

Throws:

QueryTranslatingException

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object