StyleAttributeExtractorTruncated (Geotools modules 31-SNAPSHOT API)

Object
- DefaultFilterVisitor
- - FilterAttributeExtractor
  - - StyleAttributeExtractor
    - - StyleAttributeExtractorTruncated

All Implemented Interfaces:

ExpressionVisitor, FilterVisitor, StyleVisitor
```
public class StyleAttributeExtractorTruncated
extends StyleAttributeExtractor
implements StyleVisitor
```
A simple visitor whose purpose is to extract the set of attributes used by a Style, that is, those that the Style expects to find in order to work properly
This is very similiar to StyleAttributeExtractor, but with these differences: a) it doesnt the count the tag in the b) it doesnt count anything in the 's tag c) it doesnt count anything in the 's tag
The reasons for this are because these fields are ALWAYS taken directly from the feature, not from the style.
So, for making queries (knowing any property that might be possibily be used in the SLD), use StyleAttributeExtractor. If you want to know what a symbolizer actually needs to cache, then use this (StyleAttributeExtractorTruncated).

Author:

dblasby

Field Summary
- Fields inherited from class FilterAttributeExtractor
  attributeNames, featureType, propertyNames, usingDynamicProperties

Constructor Summary

Constructors
Constructor Description

StyleAttributeExtractorTruncated()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`	Resets the attributes found so that a new attribute search can be performed
`boolean`	`isUsingVolatileFunctions()`
`Object`	`visit(Function expression, Object data)`
`void`	`visit(TextSymbolizer text)`	Called when accept is called on a textsymbolizer

Methods inherited from class StyleAttributeExtractor
getAttributes, getDefaultGeometryUsed, isSymbolizerGeometriesVisitEnabled, setSymbolizerGeometriesVisitEnabled, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class FilterAttributeExtractor
getAttributeNames, getAttributeNameSet, getPropertyNameSet, isConstantExpression, isUsingDynamincProperties, visit

Methods inherited from class DefaultFilterVisitor
visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visitNullFilter

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

Methods inherited from interface StyleVisitor
visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

- Constructor Detail
  - StyleAttributeExtractorTruncated
```
public StyleAttributeExtractorTruncated()
```
- Method Detail
  - clear
```
public void clear()
```
    Description copied from class: FilterAttributeExtractor
    
    Resets the attributes found so that a new attribute search can be performed
    
    Overrides:
    
    clear in class FilterAttributeExtractor
  - isUsingVolatileFunctions
```
public boolean isUsingVolatileFunctions()
```
  - visit
```
public Object visit(Function expression,
                    Object data)
```
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class FilterAttributeExtractor
  - visit
```
public void visit(TextSymbolizer text)
```
    Description copied from interface: StyleVisitor
    
    Called when accept is called on a textsymbolizer
    
    Specified by:
    
    visit in interface StyleVisitor
    
    Overrides:
    
    visit in class StyleAttributeExtractor
    
    Parameters:
    
    text - the text symbolizer to visit
    
    See Also:
    
    StyleVisitor.visit(org.geotools.api.style.TextSymbolizer)