NamespacePrefixMapper (EclipseLink Core 3.0.3-RC1 API)

java.lang.Object
- org.eclipse.persistence.internal.oxm.NamespacePrefixMapper

Direct Known Subclasses:

NamespacePrefixMapper
```
public abstract class NamespacePrefixMapper
extends Object
```
Purpose:Provides a means to customise the namespace prefixes used while marshalling An implementation of this class can be set on an instance of XMLMarshaller to allow for each instance of XMLMarshaller to use different namespace prefixes.

Constructor Summary

Constructors
Constructor Description

NamespacePrefixMapper()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`String[]`	`getContextualNamespaceDecls()`	Returns a string array of prefixes and namespace uris that are already available in this context.
`String[]`	`getPreDeclaredNamespaceUris()`	Returns a list of namespace uris that should be declared at the root of the xml document being marshalled.
`String[]`	`getPreDeclaredNamespaceUris2()`	Returns a string array of prefixes and namespace uris to be declared at the root of the document.
`abstract String`	`getPreferredPrefix(String namespaceUri, String suggestion, boolean requirePrefix)`

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

- Constructor Detail
  - NamespacePrefixMapper
```
public NamespacePrefixMapper()
```
- Method Detail
  - getContextualNamespaceDecls
```
public String[] getContextualNamespaceDecls()
```
    Returns a string array of prefixes and namespace uris that are already available in this context. Only required when marshalling to an output stream or a writer, since it's not possible to determine which namespaces are already in scope.
    
    Returns:
  - getPreDeclaredNamespaceUris
```
public String[] getPreDeclaredNamespaceUris()
```
    Returns a list of namespace uris that should be declared at the root of the xml document being marshalled.
  - getPreDeclaredNamespaceUris2
```
public String[] getPreDeclaredNamespaceUris2()
```
    Returns a string array of prefixes and namespace uris to be declared at the root of the document. This eliminates the need of implementing both getPredeclaredNamespaceUris and getPreferredPrefix since the prefix and uri can be associated here.
    
    Returns:
  - getPreferredPrefix
```
public abstract String getPreferredPrefix(String namespaceUri,
                                          String suggestion,
                                          boolean requirePrefix)
```