Apache Commons Collections 4.4 · org.apache.commons.collections4.EnumerationUtils

Access	Constructor and Description
private	EnumerationUtils() EnumerationUtils is not normally instantiated.

Method Summary

Modifier and Type	Method and Description
public static < the type of object in the `Enumeration` T> T	Returns: the object at the specified index get(final Enumeration<T> the enumeration to get a value from e, final int the index to get index) Returns the `index`-th value in the `Enumeration`, throwing `IndexOutOfBoundsException` if there is no such element.
public static < the element type E> List<E>	Returns: a list containing all elements of the given enumeration toList(final Enumeration<? extends E> the enumeration to traverse, which should not be `null`. enumeration) Creates a list based on an enumeration.
public static List<String>	Returns: a list containing all tokens of the given StringTokenizer toList(final StringTokenizer the tokenizer to convert to a `List`<`String`> stringTokenizer) Override toList(Enumeration) for StringTokenizer as it implements Enumeration<Object> for the sake of backward compatibility.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

EnumerationUtils	back to summary
private EnumerationUtils() EnumerationUtils is not normally instantiated.

get back to summary

get	back to summary
public static <T> T get(final Enumeration<T> e, final int index) Returns the `index`-th value in the `Enumeration`, throwing `IndexOutOfBoundsException` if there is no such element. The Enumeration is advanced to `index` (or to the end, if `index` exceeds the number of entries) as a side effect of this method. Parameters <T> the type of object in the `Enumeration` e:Enumeration<T> the enumeration to get a value from index:int the index to get Returns:T the object at the specified index Exceptions IndexOutOfBoundsException: if the index is invalid IllegalArgumentException: if the object type is invalid Since 4.1

public static <T> T get(final Enumeration<T> e, final int index)

Returns the index-th value in the Enumeration, throwing IndexOutOfBoundsException if there is no such element.

The Enumeration is advanced to index (or to the end, if index exceeds the number of entries) as a side effect of this method.

Parameters

Returns:T

the object at the specified index

Exceptions

Since

4.1

toList back to summary

toList	back to summary
public static <E> List<E> toList(final Enumeration<? extends E> enumeration) Creates a list based on an enumeration. As the enumeration is traversed, an ArrayList of its values is created. The new list is returned. Parameters <E> the element type enumeration:Enumeration<? extends E> the enumeration to traverse, which should not be `null`. Returns:List<E> a list containing all elements of the given enumeration Exceptions NullPointerException: if the enumeration parameter is `null`.

public static <E> List<E> toList(final Enumeration<? extends E> enumeration)

Creates a list based on an enumeration.

As the enumeration is traversed, an ArrayList of its values is created. The new list is returned.

Parameters

<E>: the element type
enumeration:Enumeration<? extends E>: the enumeration to traverse, which should not be null.

Returns:List<E>

a list containing all elements of the given enumeration

Exceptions

toList back to summary

toList	back to summary
public static List<String> toList(final StringTokenizer stringTokenizer) Override toList(Enumeration) for StringTokenizer as it implements Enumeration<Object> for the sake of backward compatibility. Parameters stringTokenizer:StringTokenizer the tokenizer to convert to a `List`<`String`> Returns:List<String> a list containing all tokens of the given StringTokenizer

public static List<String> toList(final StringTokenizer stringTokenizer)

Override toList(Enumeration) for StringTokenizer as it implements Enumeration<Object> for the sake of backward compatibility.

Parameters

stringTokenizer:StringTokenizer: the tokenizer to convert to a List<String>

a list containing all tokens of the given StringTokenizer