All Known Implementing Classes:

Selector.AbstractSelector, Selector.ChildOrParentSelector, Selector.GeneralSelector, Selector.LinkSelector
```
public interface Selector
```
MapCSS selector.
A rule has two parts, a selector and a declaration block e.g.
```
 way[highway=residential]
 { width: 10; color: blue; }
 
```
The selector decides, if the declaration block gets applied or not.
All implementing classes of Selector are immutable.

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static class`	`Selector.AbstractSelector`	Super class of `Selector.GeneralSelector` and `Selector.LinkSelector`.
`static class`	`Selector.ChildOrParentSelector`	Represents a child selector or a parent selector.
`static class`	`Selector.ChildOrParentSelectorType`	The type of child of parent selector.
`static class`	`Selector.GeneralSelector`	General selector.
`static class`	`Selector.LinkSelector`	In a child selector, conditions on the link between a parent and a child object.

Field Summary

Fields
Modifier and Type	Field	Description
`static java.lang.String`	`BASE_ANY`	selector base that matches anything.
`static java.lang.String`	`BASE_AREA`	selector base that matches with any area regardless of whether the area border is only modelled with a single way or with a set of ways glued together with a relation.
`static java.lang.String`	`BASE_CANVAS`	selector base for style information not specific to nodes, ways or relations.
`static java.lang.String`	`BASE_META`	selector base for special rules containing meta information.
`static java.lang.String`	`BASE_NODE`	selector base that matches on OSM object node.
`static java.lang.String`	`BASE_RELATION`	selector base that matches on OSM object relation.
`static java.lang.String`	`BASE_SETTING`	selector base for artificial bases created to use preferences.
`static java.lang.String`	`BASE_SETTINGS`	selector base for grouping settings.
`static java.lang.String`	`BASE_WAY`	selector base that matches on OSM object way.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.String`	`getBase()`
`java.util.List<Condition>`	`getConditions()`	Returns the list of conditions.
`Range`	`getRange()`	Returns the scale range, an interval of the form "lower < x <= upper" where 0 <= lower < upper.
`Subpart`	`getSubpart()`	Returns the subpart, if supported.
`boolean`	`matches(Environment env)`	Apply the selector to the primitive and check if it matches.

- Field Detail
  - BASE_ANY
```
static final java.lang.String BASE_ANY
```
    selector base that matches anything.
    
    See Also:
    
    Constant Field Values
  - BASE_NODE
```
static final java.lang.String BASE_NODE
```
    selector base that matches on OSM object node.
    
    See Also:
    
    Constant Field Values
  - BASE_WAY
```
static final java.lang.String BASE_WAY
```
    selector base that matches on OSM object way.
    
    See Also:
    
    Constant Field Values
  - BASE_RELATION
```
static final java.lang.String BASE_RELATION
```
    selector base that matches on OSM object relation.
    
    See Also:
    
    Constant Field Values
  - BASE_AREA
```
static final java.lang.String BASE_AREA
```
    selector base that matches with any area regardless of whether the area border is only modelled with a single way or with a set of ways glued together with a relation.
    
    See Also:
    
    Constant Field Values
  - BASE_META
```
static final java.lang.String BASE_META
```
    selector base for special rules containing meta information.
    
    See Also:
    
    Constant Field Values
  - BASE_CANVAS
```
static final java.lang.String BASE_CANVAS
```
    selector base for style information not specific to nodes, ways or relations.
    
    See Also:
    
    Constant Field Values
  - BASE_SETTING
```
static final java.lang.String BASE_SETTING
```
    selector base for artificial bases created to use preferences.
    
    See Also:
    
    Constant Field Values
  - BASE_SETTINGS
```
static final java.lang.String BASE_SETTINGS
```
    selector base for grouping settings.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - matches
```
boolean matches(Environment env)
```
    Apply the selector to the primitive and check if it matches.
    
    Parameters:
    
    env - the Environment. env.mc and env.layer are read-only when matching a selector. env.source is not needed. This method will set the matchingReferrers field of env as a side effect! Make sure to clear it before invoking this method.
    
    Returns:
    
    true, if the selector applies
  - getSubpart
```
Subpart getSubpart()
```
    Returns the subpart, if supported. A subpart identifies different rendering layers (::subpart syntax).
    
    Returns:
    
    the subpart, if supported
    
    Throws:
    
    java.lang.UnsupportedOperationException - if not supported
  - getRange
```
Range getRange()
```
    Returns the scale range, an interval of the form "lower < x <= upper" where 0 <= lower < upper.
    
    Returns:
    
    the scale range, if supported
    
    Throws:
    
    java.lang.UnsupportedOperationException - if not supported
  - getBase
```
java.lang.String getBase()
```
  - getConditions
```
java.util.List<Condition> getConditions()
```
    Returns the list of conditions.
    
    Returns:
    
    the list of conditions

Interface Selector

Nested Class Summary

Field Summary

Method Summary

Field Detail

BASE_ANY

BASE_NODE

BASE_WAY

BASE_RELATION

BASE_AREA

BASE_META

BASE_CANVAS

BASE_SETTING

BASE_SETTINGS

Method Detail

matches

getSubpart

getRange

getBase

getConditions