Package org.aksw.jenax.graphql.sparql.v2.exec.api.high

Class GraphQlExec<K>

java.lang.Object

org.aksw.jenax.graphql.sparql.v2.exec.api.high.GraphQlExec<K>

All Implemented Interfaces:

AutoCloseable, GraphQlExecCore

public class GraphQlExec<K>
extends Object
implements GraphQlExecCore

Adapter to wrap the execution's intended for individual nodes as one for an overall document. (Perhaps this interface should be renamed to GraphQlDocumentExec or maybe it can even be removed?)

Field Summary

Fields

Modifier and Type	Field	Description
protected GraphQlFieldExec<K>	delegate

Constructor Summary

Constructors

Constructor	Description
GraphQlExec(GraphQlFieldExec<K> delegate)

Method Summary

Modifier and Type	Method	Description
void	abort()
void	close()
GraphQlFieldExec<K>	getDelegate()
boolean	isSingle()	Whether this provider is expected to yield at most 1 result.
boolean	sendNextItemToWriter(ObjectNotationWriter<K,org.apache.jena.graph.Node> writer)
long	sendRemainingItemsToWriter(ObjectNotationWriter<K,org.apache.jena.graph.Node> writer)
void	writeExtensions(ObjectNotationWriter<K,org.apache.jena.graph.Node> writer, Function<String,K> stringToKey)

Methods inherited from class java.lang.Object

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

Field Details

delegate

protected GraphQlFieldExec<K> delegate

Constructor Details

GraphQlExec

public GraphQlExec(GraphQlFieldExec<K> delegate)

Method Details

getDelegate

public GraphQlFieldExec<K> getDelegate()

sendRemainingItemsToWriter

public long sendRemainingItemsToWriter(ObjectNotationWriter<K,org.apache.jena.graph.Node> writer)
                                throws IOException

Throws:

IOException

sendNextItemToWriter

public boolean sendNextItemToWriter(ObjectNotationWriter<K,org.apache.jena.graph.Node> writer)
                             throws IOException

Throws:

IOException

writeExtensions

public void writeExtensions(ObjectNotationWriter<K,org.apache.jena.graph.Node> writer,
 Function<String,K> stringToKey)
                     throws IOException

Throws:

IOException

isSingle

public boolean isSingle()

Description copied from interface: GraphQlExecCore

Whether this provider is expected to yield at most 1 result. The client can use this information to e.g. omit starting an array in the output. However, the data provider may not necessarily know whether this information is truthful, because it may rely on user provided mapping information: For example, a field might be tagged with &#064one but during execution bindings amounting to multiple values are encountered; If a violation is encountered during runtime then an exception should be raised.

Specified by:

isSingle in interface GraphQlExecCore

abort

public void abort()

Specified by:

abort in interface GraphQlExecCore

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface GraphQlExecCore