METSManifest.Mdref (DSpace Kernel :: API and Implementation 7.1.1 API)

All Known Implementing Classes:

AbstractMETSIngester.MdrefManager

Enclosing class:

METSManifest
```
public static interface METSManifest.Mdref
```
Callback interface to retrieve data streams in mdRef elements. "Package" or file reader returns an input stream for the given relative path, e.g. to dereference mdRef elements.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`InputStream`	`getInputStream(org.jdom.Element mdRef)`	Make the contents of an external resource mentioned in an `mdRef` element available as an `InputStream`.

- Method Detail
  - getInputStream
```
InputStream getInputStream(org.jdom.Element mdRef)
                    throws MetadataValidationException,
                           PackageValidationException,
                           IOException,
                           SQLException,
                           AuthorizeException
```
    Make the contents of an external resource mentioned in an mdRef element available as an InputStream. The implementation must use the information in the mdRef element, and the state in the object that implements this interface, to find the actual metadata content.
    For example, an implementation that ingests a directory of files on the local filesystem would get a relative pathname out of the mdRef and open that file.
    
    Parameters:
    
    mdRef - JDOM element of mdRef in the METS manifest.
    
    Returns:
    
    stream containing the metadata mentioned in mdRef.
    
    Throws:
    
    MetadataValidationException - if the mdRef is unacceptable or missing required information.
    
    PackageValidationException - if package validation error
    
    IOException - if IO error
    
    SQLException - if database error
    
    AuthorizeException - if authorization error