SetRepository (XOAI : OAI-PMH Java Toolkit 3.4.0 API)

```
public interface SetRepository
```
API for implementing a repository of sets. It is possible to have a data provider without sets.

Version:

3.1.0

Author:

Development @ Lyncode

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`exists(String setSpec)`	Checks if a specific set exists in the data source.
`ListSetsResult`	`retrieveSets(int offset, int length)`	Returns a paged list of sets.
`boolean`	`supportSets()`	Checks if the actual data source supports sets.

- Method Detail
  - supportSets
```
boolean supportSets()
```
    Checks if the actual data source supports sets.
    
    Returns:
    
    Supports sets?
  - retrieveSets
```
ListSetsResult retrieveSets(int offset,
                            int length)
```
    Returns a paged list of sets. It is common to use a partial result of 100 sets however, in XOAI this is a configured parameter.
    
    Parameters:
    
    offset - Starting offset
    
    length - Max size of the returned list
    
    Returns:
    
    List of Sets
  - exists
```
boolean exists(String setSpec)
```
    Checks if a specific set exists in the data source.
    
    Parameters:
    
    setSpec - Set spec
    
    Returns:
    
    Set exists