AbstractIndexFilter (Macrofocus TreeMap API for Swing SpecificationA good and efficient starting point is the use of the SwingTreeMap component. It contains all the information to get started within minutes!To use this API, please make sure you have at least (this is the absolute minimum) the macrofocus-treemap-swing.jar, macrofocus-treemap.jar, macrofocus-common.jar, macrofocus-visualization.jar, and macrofocus-slider.jar libraries in your class path.)

java.lang.Object
- com.macrofocus.filter.AbstractFilter<E>
- - com.macrofocus.filter.AbstractIndexFilter<E>

All Implemented Interfaces:

Filter<E>, IndexFilter<E>

Direct Known Subclasses:

AbstractMutableIndexFilter
```
public abstract class AbstractIndexFilter<E>
extends AbstractFilter<E>
implements IndexFilter<E>
```
Created by luc on 24.04.17.

Field Summary

Fields
Modifier and Type Field Description

int filteredCount

protected Index<E> index

Constructor Summary

Constructors
Constructor Description

AbstractIndexFilter()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`getFilteredCount()`	Returns the number of elements currently filtered.
`boolean`	`isActive()`	Indicates whether at least one element is currently filtered.
`boolean`	`isFiltered(E element)`	Indicates whether a given element is filtered or not.

Methods inherited from class com.macrofocus.filter.AbstractFilter
addFilterListener, addWeakFilterListener, isEnabled, notifyFilteredChanged, removeFilterListener, removeFilterListeners, setEnabled

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

Methods inherited from interface com.macrofocus.filter.Filter
addFilterListener, addWeakFilterListener, isEnabled, isFiltered, removeFilterListener, removeFilterListeners

- Field Detail
  - filteredCount
```
public int filteredCount
```
  - index
```
protected Index<E> index
```
- Constructor Detail
  - AbstractIndexFilter
```
public AbstractIndexFilter()
```
- Method Detail
  - isActive
```
public boolean isActive()
```
    Description copied from interface: Filter
    
    Indicates whether at least one element is currently filtered.
    
    Specified by:
    
    isActive in interface Filter<E>
    
    Returns:
    
    true if at least one element is filtered, false otherwise.
  - getFilteredCount
```
public int getFilteredCount()
```
    Description copied from interface: Filter
    
    Returns the number of elements currently filtered.
    
    Specified by:
    
    getFilteredCount in interface Filter<E>
    
    Returns:
    
    the number of filtered elements.
  - isFiltered
```
public boolean isFiltered(E element)
```
    Description copied from interface: Filter
    
    Indicates whether a given element is filtered or not.
    
    Specified by:
    
    isFiltered in interface Filter<E>
    
    Parameters:
    
    element - the element to be tested
    
    Returns:
    
    true if the element is filtered, false otherwise