Service (Fedora Commons 6.0.0 API)

```
public interface Service<T>
```
Since:

Feb 21, 2014

Author:

bbpennel, barmintor

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`exists(Transaction transaction, String path)`	Test whether T exists at the given path in the repository
`T`	`find(Transaction transaction, String path)`	Retrieve an existing T instance by transaction and path
`T`	`findOrCreate(Transaction transaction, String path)`	Retrieve a T instance by transaction and path

- Method Detail
  - exists
```
boolean exists(Transaction transaction,
               String path)
```
    Test whether T exists at the given path in the repository
    
    Parameters:
    
    path - the path
    
    transaction - the transaction
    
    Returns:
    
    whether T exists at the given path
  - find
```
T find(Transaction transaction,
       String path)
```
    Retrieve an existing T instance by transaction and path
    
    Parameters:
    
    path - the path to the node
    
    transaction - the transaction
    
    Returns:
    
    retrieved T
  - findOrCreate
```
T findOrCreate(Transaction transaction,
               String path)
```
    Retrieve a T instance by transaction and path
    
    Parameters:
    
    transaction - the transaction
    
    path - the path to the node
    
    Returns:
    
    retrieved T