java.lang.Object
- org.apache.commons.collections.collection.AbstractCollectionDecorator
- - org.apache.commons.collections.collection.AbstractSerializableCollectionDecorator
  - - org.apache.commons.collections.collection.PredicatedCollection
    - - org.apache.commons.collections.set.PredicatedSet
      - org.apache.commons.collections.set.PredicatedSortedSet

All Implemented Interfaces:

Serializable, Iterable, Collection, Set, SortedSet
```
public class PredicatedSortedSet
extends PredicatedSet
implements SortedSet
```
Decorates another 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.
Since:

Commons Collections 3.0

Version:

$Revision: 646777 $ $Date: 2008-04-10 14:33:15 +0200 (Thu, 10 Apr 2008) $

Author:

Stephen Colebourne, Paul Jack

See Also:

Serialized Form

Field Summary
- Fields inherited from class org.apache.commons.collections.collection.PredicatedCollection
  predicate
- Fields inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator
  collection

Constructor Summary

Constructors
Modifier Constructor Description

protected PredicatedSortedSet(SortedSet set, Predicate predicate)
Constructor that wraps (not copies).

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Comparator`	`comparator()`
`static SortedSet`	`decorate(SortedSet set, Predicate predicate)`	Factory method to create a predicated (validating) sorted set.
`Object`	`first()`
`SortedSet`	`headSet(Object toElement)`
`Object`	`last()`
`SortedSet`	`subSet(Object fromElement, Object toElement)`
`SortedSet`	`tailSet(Object fromElement)`

Methods inherited from class org.apache.commons.collections.set.PredicatedSet
decorate, getSet

Methods inherited from class org.apache.commons.collections.collection.PredicatedCollection
add, addAll, decorate, validate

Methods inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator
clear, contains, containsAll, equals, getCollection, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection
parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable
forEach

Methods inherited from interface java.util.Set
add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray

Methods inherited from interface java.util.SortedSet
spliterator

- Constructor Detail
  - PredicatedSortedSet
```
protected PredicatedSortedSet(SortedSet set,
                              Predicate predicate)
```
    Constructor that wraps (not copies).
    If there are any elements already in the set being decorated, they are validated.
    
    Parameters:
    
    set - the set to decorate, must not be null
    
    predicate - the predicate to use for validation, must not be null
    
    Throws:
    
    IllegalArgumentException - if set or predicate is null
    
    IllegalArgumentException - if the set contains invalid elements
- Method Detail
  - decorate
```
public static SortedSet decorate(SortedSet set,
                                 Predicate predicate)
```
    Factory method to create a predicated (validating) sorted set.
    If there are any elements already in the set being decorated, they are validated.
    
    Parameters:
    
    set - the set to decorate, must not be null
    
    predicate - the predicate to use for validation, must not be null
    
    Throws:
    
    IllegalArgumentException - if set or predicate is null
    
    IllegalArgumentException - if the set contains invalid elements
  - subSet
```
public SortedSet subSet(Object fromElement,
                        Object toElement)
```
    Specified by:
    
    subSet in interface SortedSet
  - headSet
```
public SortedSet headSet(Object toElement)
```
    Specified by:
    
    headSet in interface SortedSet
  - tailSet
```
public SortedSet tailSet(Object fromElement)
```
    Specified by:
    
    tailSet in interface SortedSet
  - first
```
public Object first()
```
    Specified by:
    
    first in interface SortedSet
  - last
```
public Object last()
```
    Specified by:
    
    last in interface SortedSet
  - comparator
```
public Comparator comparator()
```
    Specified by:
    
    comparator in interface SortedSet

Class PredicatedSortedSet

Field Summary

Fields inherited from class org.apache.commons.collections.collection.PredicatedCollection

Fields inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator

Constructor Summary

Method Summary

Methods inherited from class org.apache.commons.collections.set.PredicatedSet

Methods inherited from class org.apache.commons.collections.collection.PredicatedCollection

Methods inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Collection

Methods inherited from interface java.lang.Iterable

Methods inherited from interface java.util.Set

Methods inherited from interface java.util.SortedSet

Constructor Detail

PredicatedSortedSet

Method Detail

decorate

subSet

headSet

tailSet

first

last

comparator