Package de.xima.fc.common.counter

Class Counters

  • public final class Counters
extends Object
    Methods for Counters.
    Since:
    8.2.0

    • Method Detail

      • atomicLongCounter

        public static Counter.LongCounter atomicLongCounter()
        Creates a new Counter for Long values backed by an AtomicLong with an initial value of 0. The returned counter is thread-safe, to the extent provided by AtomicLong.
        Returns:
        A new counter for Long values.

      • atomicLongCounter

        public static Counter.LongCounter atomicLongCounter​(long initialValue)
        Creates a new Counter for Long values backed by an AtomicLong with the given initial value. The returned counter is thread-safe, to the extent provided by AtomicLong.
        Parameters:
        initialValue - The initial value of the counter.
        Returns:
        A new counter for Long values.

      • bigIntegerCounter

        public static Counter<BigInteger> bigIntegerCounter()
        Creates a new Counter for BigInteger values with an initial value of 0. The returned counter is not thread-safe.
        Returns:
        A new counter for BigInteger values.

      • bigIntegerCounter

        public static Counter<BigInteger> bigIntegerCounter​(BigInteger initialValue)
        Creates a new Counter for BigInteger values with the given initial value. The returned counter is not thread-safe.
        Parameters:
        initialValue - The initial value of the counter.
        Returns:
        A new counter for BigInteger values.

      • counterOfDomain

        public static <T extends Comparable<T>> Counter<T> counterOfDomain​(com.google.common.collect.DiscreteDomain<T> domain,
                                                                   T initialValue)
        Creates a new Counter for values of the given domain with the given initial value. The returned counter is not thread-safe.
        Type Parameters:
        T - The type of the counter values.
        Parameters:
        domain - The domain of the counter.
        initialValue - The initial value of the counter.
        Returns:
        A new counter for values of the given domain.

      • longCounter

        public static Counter.LongCounter longCounter()
        Creates a new Counter for Long values with an initial value of 0. The returned counter is not thread-safe.
        Returns:
        A new counter for Long values.

      • longCounter

        public static Counter.LongCounter longCounter​(long initialValue)
        Creates a new Counter for Long values with the given initial value.
        Parameters:
        initialValue - The initial value of the counter.
        Returns:
        A new counter for Long values.

      • synchronizedCounter

        public static <T extends Comparable<T>> Counter<T> synchronizedCounter​(Counter<T> counter)
        Creates a new Counter that wraps the given counter. All methods of the returned counter are synchronized.
        Type Parameters:
        T - The type of the counter values.
        Parameters:
        counter - The counter to wrap.
        Returns:
        A synchronized counter.

      • synchronizedLongCounter

        public static Counter.LongCounter synchronizedLongCounter​(Counter.LongCounter counter)
        Creates a new Counter that wraps the given counter. All methods of the returned counter are synchronized.
        Parameters:
        counter - The counter to wrap.
        Returns:
        A synchronized counter.