Enumerator (Apache Tomcat 7.0.104 API Documentation)

org.apache.catalina.util

## Class Enumerator<T>

- java.lang.Object
- - org.apache.catalina.util.Enumerator<T>

- All Implemented Interfaces:
    Enumeration<T>

  Deprecated.
  Replaced by java.util.Collections#enumeration(..)

      @Deprecated
      public final class Enumerator<T>
      extends Object
      implements Enumeration<T>

  Adapter class that wraps an `Enumeration` around a Java2 collection classes object `Iterator` so that existing APIs returning Enumerations can easily run on top of the new collections. Constructors are provided to easily create such wrappers.
  Author:
    Craig R. McClanahan

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `Enumerator(Collection<T> collection)` Deprecated. Return an Enumeration over the values of the specified Collection.
    `Enumerator(Collection<T> collection, boolean clone)` Deprecated. Return an Enumeration over the values of the specified Collection.
    `Enumerator(Iterator<T> iterator)` Deprecated. Return an Enumeration over the values returned by the specified Iterator.
    `Enumerator(Iterator<T> iterator, boolean clone)` Deprecated. Return an Enumeration over the values returned by the specified Iterator.
    `Enumerator(Map<?,T> map)` Deprecated. Return an Enumeration over the values of the specified Map.
    `Enumerator(Map<?,T> map, boolean clone)` Deprecated. Return an Enumeration over the values of the specified Map.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `hasMoreElements()` Deprecated. Tests if this enumeration contains more elements.
    `T` | `nextElement()` Deprecated. Returns the next element of this enumeration if this enumeration has at least one more element to provide.

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### Enumerator

          public Enumerator(Collection<T> collection)

      Deprecated.
      Return an Enumeration over the values of the specified Collection.
      Parameters:
        `collection` - Collection whose values should be enumerated

    - #### Enumerator

          public Enumerator(Collection<T> collection,
                    boolean clone)

      Deprecated.
      Return an Enumeration over the values of the specified Collection.
      Parameters:
        `collection` - Collection whose values should be enumerated
        `clone` - true to clone iterator

    - #### Enumerator

          public Enumerator(Iterator<T> iterator)

      Deprecated.
      Return an Enumeration over the values returned by the specified Iterator.
      Parameters:
        `iterator` - Iterator to be wrapped

    - #### Enumerator

          public Enumerator(Iterator<T> iterator,
                    boolean clone)

      Deprecated.
      Return an Enumeration over the values returned by the specified Iterator.
      Parameters:
        `iterator` - Iterator to be wrapped
        `clone` - true to clone iterator

    - #### Enumerator

          public Enumerator(Map<?,T> map)

      Deprecated.
      Return an Enumeration over the values of the specified Map.
      Parameters:
        `map` - Map whose values should be enumerated

    - #### Enumerator

          public Enumerator(Map<?,T> map,
                    boolean clone)

      Deprecated.
      Return an Enumeration over the values of the specified Map.
      Parameters:
        `map` - Map whose values should be enumerated
        `clone` - true to clone iterator

  - ### Method Detail

    - #### hasMoreElements

          public boolean hasMoreElements()

      Deprecated.
      Tests if this enumeration contains more elements.
      Specified by:
        `hasMoreElements` in interface `Enumeration<T>`
      Returns:
        `true` if and only if this enumeration object contains at least one more element to provide, `false` otherwise

    - #### nextElement

          public T nextElement()
                        throws NoSuchElementException

      Deprecated.
      Returns the next element of this enumeration if this enumeration has at least one more element to provide.
      Specified by:
        `nextElement` in interface `Enumeration<T>`
      Returns:
        the next element of this enumeration
      Throws:
        `NoSuchElementException` - if no more elements exist

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