Class IteratorHelpers

java.lang.Object
com.ibm.j9ddr.util.IteratorHelpers

public class IteratorHelpers extends Object
Utility functions for working with iterators
  • Constructor Details

    • IteratorHelpers

      public IteratorHelpers()
  • Method Details

    • combineIterators

      public static <T> Iterator<T> combineIterators(Iterator<T>... iterators)
      Takes a list of iterators and returns one iterator that iterates over each iterator in turn.
    • toList

      public static <T> List<T> toList(Iterator<T> it)
    • filterIterator

      public static <T> Iterator<T> filterIterator(Iterator<T> it, IteratorHelpers.IteratorFilter<T> filter)
      Filters an iterator
      Type Parameters:
      T - Generic type of iterator
      Parameters:
      it - Iterator to be filtered
      filter - Filter object to select which objects to be passed through
      Returns:
      Filtered iterator