salvo.jesus.util
Class Collections
java.lang.Object
salvo.jesus.util.Collections
public class Collections
- extends java.lang.Object
Method Summary |
static java.lang.Object |
contains(java.util.Collection c,
java.lang.Object compareTo,
java.util.Comparator comparator)
Returns true if the specified Collection has an object that matches
the argument object compareTo using the given Comparator. |
static java.util.Set |
subset(java.util.Collection c,
java.lang.Object compareTo,
java.util.Comparator comparator)
Returns a subset of the specified collection whose elements
match a given object using a specified Comparator. |
static java.util.Collection |
twoLevelCopyOfCollectionOfCollectionS(java.util.Collection collOfCollSToBeCopied)
|
static java.util.Map |
twoLevelCopyOfMapOfCollectionS(java.util.Map mapOfCollectionSToBeCopied)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Collections
public Collections()
subset
public static java.util.Set subset(java.util.Collection c,
java.lang.Object compareTo,
java.util.Comparator comparator)
- Returns a subset of the specified collection whose elements
match a given object using a specified Comparator. Only
elements in the collection that match the given object
compareTo using the specified comparator are returned in the
subset.
- Parameters:
c
- Collection object from which a subset will be taken.compareTo
- Object to which elements of the collection
will be compared against.comparator
- Comparator object determining how elements in
the collection will be compared to the compareTo object.
- Returns:
- Collection object that is a subset of the collection
specified in the argument.
contains
public static java.lang.Object contains(java.util.Collection c,
java.lang.Object compareTo,
java.util.Comparator comparator)
- Returns true if the specified Collection has an object that matches
the argument object compareTo using the given Comparator. This therefore
does use obj1.equals( obj2 ) but uses comparator.compare( obj1, obj2 ).
- Parameters:
c
- Collection object from which a subset will be taken.compareTo
- Object to which elements of the collection will be compared against.comparator
- Comparator object determining how elements in the collection will
be compared to the compareTo object.
- Returns:
- boolean True if the Collection has a matching object
twoLevelCopyOfMapOfCollectionS
public static java.util.Map twoLevelCopyOfMapOfCollectionS(java.util.Map mapOfCollectionSToBeCopied)
twoLevelCopyOfCollectionOfCollectionS
public static java.util.Collection twoLevelCopyOfCollectionOfCollectionS(java.util.Collection collOfCollSToBeCopied)