IPolicyCache (MYDATA :: SDK 4.1.0-SNAPSHOT API)

All Known Implementing Classes:

PolicyCache
```
public interface IPolicyCache
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Optional<Set<de.fraunhofer.iese.mydata.policy.Policy>>`	`getPolicies()`
`void`	`invalidate()`	invalidates the cache
`boolean`	`isValid()`
`boolean`	`updateCache(Set<de.fraunhofer.iese.mydata.policy.Policy> policies)`	updates cache content and refreshes validation time
`void`	`validate()`	refreshes validation time of the cache without changing its contents

- Method Detail
  - getPolicies
```
Optional<Set<de.fraunhofer.iese.mydata.policy.Policy>> getPolicies()
```
    Returns:
    
    the cached policies if cache is valid or else empty Optional
  - isValid
```
boolean isValid()
```
    Returns:
    
    whether the cache is valid
  - invalidate
```
void invalidate()
```
    invalidates the cache
  - validate
```
void validate()
```
    refreshes validation time of the cache without changing its contents
  - updateCache
```
boolean updateCache(Set<de.fraunhofer.iese.mydata.policy.Policy> policies)
```
    updates cache content and refreshes validation time
    
    Parameters:
    
    policies -
    
    Returns:
    
    whether updating the cache succeeded