ContentIDGenerator (Axiom Compatibility Classes API)

```
public interface ContentIDGenerator
```
Content ID generator interface. Implementations of this interface are used by XOPEncodingStreamReader to generate content IDs for use in xop:Include elements.

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  static ContentIDGenerator DEFAULT
  Default content ID generator that preserves any existing content ID.
- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  String generateContentID(String existingContentID)
  Generate a content ID.

- Field Detail
  - DEFAULT
```
static final ContentIDGenerator DEFAULT
```
    Default content ID generator that preserves any existing content ID.
- Method Detail
  - generateContentID
```
String generateContentID(String existingContentID)
```
    Generate a content ID.
    
    Parameters:
    
    existingContentID - An existing content ID for the DataHandler being processed, as returned by DataHandlerReader.getContentID(), or null if no existing content ID is known. The implementation is free to use this information or not.
    
    Returns:
    
    the content ID; may not be null