FileNamespaceService (Trellis Linked Data Server Documentation)

java.lang.Object
- org.trellisldp.file.FileNamespaceService

All Implemented Interfaces:

NamespaceService
```
@Alternative
public class FileNamespaceService
extends Object
implements NamespaceService
```
Create a namespace service based on reading/writing the namespaces to a central JSON file.

Field Summary

Fields
Modifier and Type Field Description

static String CONFIG_FILE_NAMESPACE_PATH
The configuration key controlling the path to a JSON-formatted namespace file.

Constructor Summary

Constructors
Constructor Description

FileNamespaceService()
Create a JSON-based Namespace service.

FileNamespaceService(String path)
Create a JSON-based Namespace service.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Map<String,String>`	`getNamespaces()`	Fetch the entire namespace mapping.
`boolean`	`setPrefix(String prefix, String namespace)`	Set the namespace for a given prefix.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - CONFIG_FILE_NAMESPACE_PATH
```
public static final String CONFIG_FILE_NAMESPACE_PATH
```
    The configuration key controlling the path to a JSON-formatted namespace file.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - FileNamespaceService
```
public FileNamespaceService()
```
    Create a JSON-based Namespace service.
  - FileNamespaceService
```
public FileNamespaceService(String path)
```
    Create a JSON-based Namespace service.
    
    Parameters:
    
    path - the path to the JSON file
- Method Detail
  - getNamespaces
```
public Map<String,String> getNamespaces()
```
    Description copied from interface: NamespaceService
    
    Fetch the entire namespace mapping.
    
    Specified by:
    
    getNamespaces in interface NamespaceService
    
    Returns:
    
    the namespace mapping as prefix, namespace pairs
  - setPrefix
```
public boolean setPrefix(String prefix,
                         String namespace)
```
    Description copied from interface: NamespaceService
    
    Set the namespace for a given prefix.
    
    Specified by:
    
    setPrefix in interface NamespaceService
    
    Parameters:
    
    prefix - the prefix
    
    namespace - the namespace
    
    Returns:
    
    whether the new prefix was set