PrefixMapZero (Apache Jena ARQ)

java.lang.Object
- org.apache.jena.riot.system.PrefixMapNull
- - org.apache.jena.riot.system.PrefixMapZero

All Implemented Interfaces:

PrefixMap
```
public class PrefixMapZero
extends PrefixMapNull
```
Always empty, immutable prefix map

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  static PrefixMap empty
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  java.lang.String toString()
  - Methods inherited from class org.apache.jena.riot.system.PrefixMapNull
    abbrev, abbreviate, add, clear, containsPrefix, delete, expand, expand, forEach, get, getMapping, getMappingCopy, isEmpty, putAll, putAll, putAll, size, stream
  - Methods inherited from class java.lang.Object
    equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - empty
```
public static PrefixMap empty
```
- Method Detail
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object