Package diva.util

Class IteratorUtilities

  • public class IteratorUtilities
extends java.lang.Object
    A collection of utilities dealing with iterators.
    Version:
    $Id$
    Author:
    John Reekie, Michael Shilman

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.lang.Object firstMatch​(java.util.Iterator i, Filter f)
      Return the first element in an iterator that matches the given filter, or null if there isn't one.
      static java.lang.Object firstNotMatch​(java.util.Iterator i, Filter f)
      Return the first element in an iterator that doesn't match the given filter, or null if there isn't one.
      static void printElements​(java.lang.String prefix, java.lang.String desc, java.util.Iterator i)
      Print every element of an iterator to stdout.
      static void printElements​(java.lang.String desc, java.util.Iterator i)
      Print every element of an iterator to stdout.

      • Methods inherited from class java.lang.Object

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

    • Method Detail

      • firstMatch

        public static java.lang.Object firstMatch​(java.util.Iterator i,
                                          Filter f)
        Return the first element in an iterator that matches the given filter, or null if there isn't one.

      • firstNotMatch

        public static java.lang.Object firstNotMatch​(java.util.Iterator i,
                                             Filter f)
        Return the first element in an iterator that doesn't match the given filter, or null if there isn't one.

      • printElements

        public static void printElements​(java.lang.String desc,
                                 java.util.Iterator i)
        Print every element of an iterator to stdout. The string argument is printed first, and then each element is printed on a new line but indented.

      • printElements

        public static void printElements​(java.lang.String prefix,
                                 java.lang.String desc,
                                 java.util.Iterator i)
        Print every element of an iterator to stdout. The string argument is printed first with the prefix argument leading it; then each element is printed on a new line with additional indentation.