IExistingVersions

All Known Implementing Classes:

WorkerThread.ExistingVersions
```
public interface IExistingVersions
```
This interface describes functionality designed to allow retrieval of existing version information from previous crawls. It is part of the IRepositoryConnector API.

Field Summary

Fields
Modifier and Type Field Description

static java.lang.String _rcsid

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.lang.String`	`getIndexedVersionString(java.lang.String documentIdentifier)`	Retrieve the primary existing version string given a document identifier.
`java.lang.String`	`getIndexedVersionString(java.lang.String documentIdentifier, java.lang.String componentIdentifier)`	Retrieve a component existing version string given a document identifier.

- Field Detail
  - _rcsid
```
static final java.lang.String _rcsid
```
    See Also:
    
    Constant Field Values
- Method Detail
  - getIndexedVersionString
```
java.lang.String getIndexedVersionString(java.lang.String documentIdentifier)
                                  throws ManifoldCFException
```
    Retrieve the primary existing version string given a document identifier.
    
    Parameters:
    
    documentIdentifier - is the document identifier.
    
    Returns:
    
    the document version string, or null if the document was never previously indexed.
    
    Throws:
    
    ManifoldCFException
  - getIndexedVersionString
```
java.lang.String getIndexedVersionString(java.lang.String documentIdentifier,
                                         java.lang.String componentIdentifier)
                                  throws ManifoldCFException
```
    Retrieve a component existing version string given a document identifier.
    
    Parameters:
    
    documentIdentifier - is the document identifier.
    
    componentIdentifier - is the component identifier, if any.
    
    Returns:
    
    the document version string, or null of the document component was never previously indexed.
    
    Throws:
    
    ManifoldCFException