java.lang.Object
- org.jdom.filter2.AbstractFilter<T>

Type Parameters:

T - The Generic type of content returned by this Filter

All Implemented Interfaces:

Serializable, Filter<T>

Direct Known Subclasses:

AttributeFilter, ContentFilter, ElementFilter
```
public abstract class AbstractFilter<T>
extends Object
implements Filter<T>
```
Partial implementation of Filter.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

AbstractFilter()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Filter<T>`	`and(Filter<?> filter)`	Creates an ANDing filter.
`List<T>`	`filter(List<?> content)`	Filter the input list keeping only the items that match the Filter.
`boolean`	`matches(Object content)`	Check to see if the object matches a predefined set of rules.
`Filter<?>`	`negate()`	Creates an 'inverse' filter
`Filter<? extends Content>`	`or(Filter<?> filter)`	Creates an ORing filter
`<R> Filter<R>`	`refine(Filter<R> filter)`	This is similar to the and(Filter) method except the generic type is different.
`static <E extends Content> Filter<E>`	`toFilter(Filter<E> filter)`

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

Methods inherited from interface org.jdom.filter2.Filter
filter

- Constructor Detail
  - AbstractFilter
```
public AbstractFilter()
```
- Method Detail
  - matches
```
public final boolean matches(Object content)
```
    Description copied from interface: Filter
    
    Check to see if the object matches a predefined set of rules.
    
    Specified by:
    
    matches in interface Filter<T>
    
    Parameters:
    
    content - The object to verify.
    
    Returns:
    
    true if the object matches a predfined set of rules.
  - filter
```
public List<T> filter(List<?> content)
```
    Description copied from interface: Filter
    
    Filter the input list keeping only the items that match the Filter.
    
    Specified by:
    
    filter in interface Filter<T>
    
    Parameters:
    
    content - The content to filter.
    
    Returns:
    
    a new read-only RandomAccess list of the filtered input content.
  - negate
```
public final Filter<?> negate()
```
    Description copied from interface: Filter
    
    Creates an 'inverse' filter
    
    Specified by:
    
    negate in interface Filter<T>
    
    Returns:
    
    a Filter that returns all content except what this Filter instance would.
  - or
```
public final Filter<? extends Content> or(Filter<?> filter)
```
    Description copied from interface: Filter
    
    Creates an ORing filter
    
    Specified by:
    
    or in interface Filter<T>
    
    Parameters:
    
    filter - a second Filter to OR with.
    
    Returns:
    
    a new Filter instance that returns the 'union' of this filter and the specified filter.
  - and
```
public final Filter<T> and(Filter<?> filter)
```
    Description copied from interface: Filter
    
    Creates an ANDing filter. The generic type of the result is the same as this Filter.
    
    Specified by:
    
    and in interface Filter<T>
    
    Parameters:
    
    filter - a second Filter to AND with.
    
    Returns:
    
    a new Filter instance that returns the 'intersection' of this filter and the specified filter.
  - refine
```
public <R> Filter<R> refine(Filter<R> filter)
```
    Description copied from interface: Filter
    
    This is similar to the and(Filter) method except the generic type is different.
    
    Specified by:
    
    refine in interface Filter<T>
    
    Type Parameters:
    
    R - The Generic type of the returned data is taken from the input instance.
    
    Parameters:
    
    filter - The filter to refine our results with.
    
    Returns:
    
    A Filter that requires content to both match our instance and the refining instance, but the generic type of the retuned data is based on the refining instance, not this instance.
  - toFilter
```
public static <E extends Content> Filter<E> toFilter(Filter<E> filter)
```

Class AbstractFilter<T>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface org.jdom.filter2.Filter

Constructor Detail

AbstractFilter

Method Detail

matches

filter

negate

or

and

refine

toFilter