GroupService (OpenStack4j Core 3.12 API)

All Known Implementing Classes:

GroupServiceImpl
```
public interface GroupService
```
This interface defines all methods for the manipulation of groups

Author:

vinod borole

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`PolicyTargetGroup`	`create(PolicyTargetGroupCreate policyTargetGroup)`	Create a new policy target group
`ActionResponse`	`delete(String id)`	Delete of the policy target group
`PolicyTargetGroup`	`get(String id)`	Get the specified policy target group by ID
`List<? extends PolicyTargetGroup>`	`list()`	List all policy target group
`List<? extends PolicyTargetGroup>`	`list(Map<String,String> filteringParams)`	Returns list of policy target group filtered by parameters.
`PolicyTargetGroup`	`update(String policyTargetGroupId, PolicyTargetGroupCreate policyTargetGroup)`	Updates an existing policy target group

- Method Detail
  - list
```
List<? extends PolicyTargetGroup> list()
```
    List all policy target group
    
    Returns:
    
    List of policy target group
  - list
```
List<? extends PolicyTargetGroup> list(Map<String,String> filteringParams)
```
    Returns list of policy target group filtered by parameters.
    
    Parameters:
    
    filteringParams - map (name, value) of filtering parameters
  - get
```
PolicyTargetGroup get(String id)
```
    Get the specified policy target group by ID
    
    Parameters:
    
    id - the policy target group id
    
    Returns:
    
    policy target group or null if not found
  - delete
```
ActionResponse delete(String id)
```
    Delete of the policy target group
    
    Parameters:
    
    id - the policy target group id
    
    Returns:
    
    the action response
  - create
```
PolicyTargetGroup create(PolicyTargetGroupCreate policyTargetGroup)
```
    Create a new policy target group
    
    Parameters:
    
    policy - target group
    
    Returns:
    
    the newly created policy target group
  - update
```
PolicyTargetGroup update(String policyTargetGroupId,
                         PolicyTargetGroupCreate policyTargetGroup)
```
    Updates an existing policy target group
    
    Parameters:
    
    policy - target group identifier
    
    policy - target group that is be used to updated
    
    Returns:
    
    the updated policy target group