Package dev.vortex.api

Class Scan

java.lang.Object

dev.vortex.api.Scan

All Implemented Interfaces:

Iterator<Partition>

public final class Scan
extends Object
implements Iterator<Partition>

A lazy handle to a set of partitions.

Once a scan has produced its last partition it is effectively exhausted; native resources are released automatically via VortexCleaner when the scan becomes unreachable.

Method Summary

Modifier and Type	Method	Description
org.apache.arrow.vector.types.pojo.Schema	arrowSchema(org.apache.arrow.memory.BufferAllocator allocator)	Arrow schema produced by this scan.
boolean	hasNext()
Partition	next()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Method Details

arrowSchema

public org.apache.arrow.vector.types.pojo.Schema arrowSchema(org.apache.arrow.memory.BufferAllocator allocator)

Arrow schema produced by this scan. Must be called before the first call to hasNext()/next().

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<Partition>

next

public Partition next()

Specified by:

next in interface Iterator<Partition>