Package org.datanucleus.store.types

Class SCOCollectionIterator<E>

  • Type Parameters:
    E - Element type for the collection
    All Implemented Interfaces:
    java.util.Iterator<E>
    public class SCOCollectionIterator<E>
extends java.lang.Object
implements java.util.Iterator<E>
    An iterator for a SCO Collection object. Works from either the delegate or a backing store, and provides iteration through the objects.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private java.util.Iterator<E> iter  
      private E last  
      private java.util.Collection<E> ownerSCO  

    • Constructor Summary

      Constructors 
      Constructor Description
      SCOCollectionIterator​(java.util.Collection<E> sco, DNStateManager sm, java.util.Collection<E> theDelegate, CollectionStore<E> backingStore, boolean useDelegate)
      Constructor taking the delegate or backing store.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean hasNext()  
      E next()  
      void remove()  

      • 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

    • Field Detail

      • iter

        private final java.util.Iterator<E> iter

      • last

        private E last

      • ownerSCO

        private java.util.Collection<E> ownerSCO

    • Constructor Detail

      • SCOCollectionIterator

        public SCOCollectionIterator​(java.util.Collection<E> sco,
                             DNStateManager sm,
                             java.util.Collection<E> theDelegate,
                             CollectionStore<E> backingStore,
                             boolean useDelegate)
        Constructor taking the delegate or backing store.
        Parameters:
        sco - The owner sco
        sm - StateManager of SCO Collection to iterate
        theDelegate - The delegate collection
        backingStore - The backing store (connected to the DB)
        useDelegate - Whether to use the delegate

    • Method Detail

      • hasNext

        public boolean hasNext()
        Specified by:
        hasNext in interface java.util.Iterator<E>

      • next

        public E next()
        Specified by:
        next in interface java.util.Iterator<E>

      • remove

        public void remove()
        Specified by:
        remove in interface java.util.Iterator<E>