MultiviewSet

java.lang.Object
- org.ojalgo.concurrent.MultiviewSet<T>

```
public final class MultiviewSet<T>
extends java.lang.Object
```
Multiple prioritised Queue:s backed by a common Set. Typical usage:
1. Create a MultiviewSet instance
2. Call newView(Comparator) (multiple times) to create the necessary views
3. add(Object), or MultiviewSet.PrioritisedView.offer(Object) to any of the views, will have the same effect.
4. MultiviewSet.PrioritisedView.poll() from each of the views as needed.
Polling skips stale entries that no longer exist in the backing set.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

class MultiviewSet.PrioritisedView

Field Summary

Fields
Modifier and Type Field Description

private java.util.Set<T> myCommonSet

private java.util.Collection<MultiviewSet.PrioritisedView> myViews

Constructor Summary

Constructors
Constructor Description

MultiviewSet()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`add(T entry)`	Add an entry to the common `Set` and all `Queue`:s.
`void`	`clear()`
`boolean`	`isAnyContents()`
`boolean`	`isEmpty()`
`MultiviewSet.PrioritisedView`	`newView(java.util.Comparator<? super T> comparator)`
`boolean`	`remove(T entry)`	Remove an entry from the common `Set`.
`int`	`size()`

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

Field Detail

myCommonSet

private final java.util.Set<T> myCommonSet

myViews

private final java.util.Collection<MultiviewSet.PrioritisedView> myViews

Constructor Detail
- MultiviewSet
```
public MultiviewSet()
```

Method Detail
- add
```
public boolean add(T entry)
```
  Add an entry to the common Set and all Queue:s.
- clear
```
public void clear()
```
- isAnyContents
```
public boolean isAnyContents()
```
  Returns:
  
  true if the main set or any of the priority queues have any contents
- isEmpty
```
public boolean isEmpty()
```
- newView
```
public MultiviewSet.PrioritisedView newView(java.util.Comparator<? super T> comparator)
```
- remove
```
public boolean remove(T entry)
```
  Remove an entry from the common Set. Entries already present in view queues are considered stale and will be skipped during MultiviewSet.PrioritisedView.poll().
- size
```
public int size()
```