# com.bea.p13n.common
ObjectFilter Interface

public interface ObjectFilter

This interface is used to filter objects. The caller passes an implementing class to a method and receives callbacks that allow the caller to filter the output objects as desired. Filters can either build up state within themselves or can merely block or pass objects based on a filtering algorithm.

All Known Implementing Classes
  `RuleResultClassFilter`,

## Method Summary

`public `Object`` | `filter`(`Object` obj) The main filtering method on the interface.
`public void` | `reset`() Stateful filters should implement this interface to allow them to be reset to an intial state.

## Method Detail

### filter(Object) Method

    public Object filter(Object obj)

The main filtering method on the interface.

#### Parameters

obj
  the object to be filtered.

#### Returns

the result of the filtering or `null`.

### reset() Method

    public void reset()

Stateful filters should implement this interface to allow them to be reset to an intial state.