org.mozilla.mentat

Class RelResult

java.lang.Object

org.mozilla.mentat.RelResult

All Implemented Interfaces:

Closeable, AutoCloseable, Iterable<TupleResult>

public class RelResult
extends Object
implements Iterable<TupleResult>

Wraps a `Rel` result from a Mentat query. A `Rel` result is a list of rows of `TypedValues`. Individual rows can be fetched or the set can be iterated.

To fetch individual rows from a `RelResult` use `row(Int32)`.

 mentat.query(query).run(new RelResultHandler() {

Constructor Summary

Constructors

Constructor and Description
RelResult(com.sun.jna.Pointer pointer)

Method Summary

Modifier and Type	Method and Description
void	close()
com.sun.jna.Pointer	getPointerForUUID(UUID uuid)
UUID	getUUIDFromPointer(com.sun.jna.Pointer uuidPtr)
RelResultIterator	iterator()
TupleResult	rowAtIndex(int index) Fetch the row at the requested index.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

RelResult

public RelResult(com.sun.jna.Pointer pointer)

Method Detail

rowAtIndex

public TupleResult rowAtIndex(int index)

Fetch the row at the requested index. TODO: Throw an exception if the result set has already been iterated.

Parameters:

index - the index of the row to be fetched

Returns:

The row at the requested index as a `TupleResult`, if present, or nil if there is no row at that index.

iterator

public RelResultIterator iterator()

Specified by:

iterator in interface Iterable<TupleResult>

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

getPointerForUUID

public com.sun.jna.Pointer getPointerForUUID(UUID uuid)

getUUIDFromPointer

public UUID getUUIDFromPointer(com.sun.jna.Pointer uuidPtr)