public class PredicatedSortedSet extends PredicatedSet implements java.util.SortedSet
SortedSet
to validate that all additions
match a specified predicate.
This set exists to provide validation for the decorated set. It is normally created to decorate an empty set. If an object cannot be added to the set, an IllegalArgumentException is thrown.
One usage would be to ensure that no null entries are added to the set.
SortedSet set = PredicatedSortedSet.decorate(new TreeSet(), NotNullPredicate.INSTANCE);
This class is Serializable from Commons Collections 3.1.
Modifier and Type | Method and Description |
---|---|
java.util.Comparator |
comparator() |
static java.util.SortedSet |
decorate(java.util.SortedSet set,
Predicate predicate)
Factory method to create a predicated (validating) sorted set.
|
java.lang.Object |
first() |
java.util.SortedSet |
headSet(java.lang.Object toElement) |
java.lang.Object |
last() |
java.util.SortedSet |
subSet(java.lang.Object fromElement,
java.lang.Object toElement) |
java.util.SortedSet |
tailSet(java.lang.Object fromElement) |
decorate
add, addAll, decorate
clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray, toString
public static java.util.SortedSet decorate(java.util.SortedSet set, Predicate predicate)
If there are any elements already in the set being decorated, they are validated.
set
- the set to decorate, must not be nullpredicate
- the predicate to use for validation, must not be nulljava.lang.IllegalArgumentException
- if set or predicate is nulljava.lang.IllegalArgumentException
- if the set contains invalid elementspublic java.util.SortedSet subSet(java.lang.Object fromElement, java.lang.Object toElement)
subSet
in interface java.util.SortedSet
public java.util.SortedSet headSet(java.lang.Object toElement)
headSet
in interface java.util.SortedSet
public java.util.SortedSet tailSet(java.lang.Object fromElement)
tailSet
in interface java.util.SortedSet
public java.lang.Object first()
first
in interface java.util.SortedSet
public java.lang.Object last()
last
in interface java.util.SortedSet
public java.util.Comparator comparator()
comparator
in interface java.util.SortedSet
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