Class IteratorItemReader<T>

  • All Implemented Interfaces:
    ItemReader<T>

    public class IteratorItemReader<T>
    extends java.lang.Object
    implements ItemReader<T>
    An ItemReader that pulls data from a Iterator or Iterable using the constructors.
    Author:
    Juliusz Brzostek, Dave Syer
    • Constructor Summary

      Constructors 
      ConstructorDescription
      IteratorItemReader​(java.lang.Iterable<T> iterable)
      Construct a new reader from this iterable (could be a collection), by extracting an instance of Iterator from it.
      IteratorItemReader​(java.util.Iterator<T> iterator)
      Construct a new reader from this iterator directly.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and TypeMethodDescription
      Tread()
      Implementation of ItemReader.read() that just iterates over the iterator provided.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • IteratorItemReader

        public IteratorItemReader​(java.lang.Iterable<T> iterable)
        Construct a new reader from this iterable (could be a collection), by extracting an instance of Iterator from it.
        Parameters:
        iterable - in instance of Iterable
        See Also:
        Iterable.iterator()
      • IteratorItemReader

        public IteratorItemReader​(java.util.Iterator<T> iterator)
        Construct a new reader from this iterator directly.
        Parameters:
        iterator - an instance of Iterator
    • Method Detail

      • read

        public T read()
        Implementation of ItemReader.read() that just iterates over the iterator provided.
        Specified by:
        read in interface ItemReader<T>
        Returns:
        T the item to be processed or null if the data source is exhausted