Package org.openiam.esb.core.service

Interface CounterService

All Known Implementing Classes:

CounterServiceImpl

public interface CounterService

Author:

zaporozhec The service implements the method 'incrementAndGet' to get next value in series. If series with given key hasn't existed before, then it will be created with default initial value 1.

Method Summary

Modifier and Type	Method	Description
CounterDTO	create(CounterDTO counterDTO)	Create a new counter with given initial value
void	delete(String key)	Delete counter by Key
long	incrementAndGet(String key)	This is system wide thread-safe method to get next value in the series.
CounterListResponse	list(String keyPattern, int from, int size)	List all counters by page/
long	nonSynchronizedIncrementAndGet(String key)	This is system wide NOT thread safe method to get next value in the series.

Method Detail

incrementAndGet

long incrementAndGet(String key)
              throws BasicDataServiceException

This is system wide thread-safe method to get next value in the series. The synchronization is based on Redis Lock

Parameters:

key - - the series key

Returns:

next value in series.

Throws:

BasicDataServiceException - - in case key is null or empy string.

nonSynchronizedIncrementAndGet

long nonSynchronizedIncrementAndGet(String key)

This is system wide NOT thread safe method to get next value in the series.

Parameters:

key - - the series key

Returns:

next value in series.

delete

void delete(String key)

Delete counter by Key

Parameters:

key - - the Key of counter that should be deleted.

list

CounterListResponse list(String keyPattern,
                         int from,
                         int size)

List all counters by page/

Parameters:

keyPattern - - pattern for key search, can be null

from - - the very 1st result

size - - the size of the page

Returns:

- list of CounterDTO, where key is counter key, Value is current counter value;

create

CounterDTO create(CounterDTO counterDTO)
           throws BasicDataServiceException

Create a new counter with given initial value

Parameters:

counterDTO - - Dto with Key and initial value

Throws:

BasicDataServiceException