FilterAbstract (Geotools modules 31-SNAPSHOT API)

Object
- FilterAbstract

All Implemented Interfaces:

Filter

Direct Known Subclasses:

AbstractFilter
```
public abstract class FilterAbstract
extends Object
implements Filter
```
Abstract implementation for Filter.

Author:

Jody Garnett

Field Summary
- Fields inherited from interface Filter
  EXCLUDE, INCLUDE

Constructor Summary

Constructors
Modifier Constructor Description

protected FilterAbstract()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`accepts(SimpleFeature feature)`	Straight call throught to: evaulate( feature )
`protected Object`	`eval(Expression expression, Object object)`	Helper method for subclasses to reduce null checks and automatically unpack values from attributes and collections
`protected Object`	`eval(Expression expression, Object object, Class<?> context)`	Helper method for subclasses to reduce null checks

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

Methods inherited from interface Filter
accept, evaluate

Constructor Detail
- FilterAbstract
```
protected FilterAbstract()
```

Method Detail

accepts

public boolean accepts(SimpleFeature feature)

Straight call throught to: evaulate( feature )

eval
```
protected Object eval(Expression expression,
                      Object object)
```
Helper method for subclasses to reduce null checks and automatically unpack values from attributes and collections

Returns:

value or null

eval

protected Object eval(Expression expression,
                      Object object,
                      Class<?> context)

Helper method for subclasses to reduce null checks

Returns:: value or null