Package org.jboss.resteasy.microprofile.client.publisher

Class Subscriptions

java.lang.Object
org.jboss.resteasy.microprofile.client.publisher.Subscriptions
public class Subscriptions extends Object

  • Constructor Summary

    Constructors
    Constructor
    Description
    Subscriptions()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static long
    add(long a, long b)
    Adds two long values and caps the sum at Long.MAX_VALUE.
    static long
    add(AtomicLong requested, long requests)
    Atomically adds the positive value n to the requested value in the AtomicLong and caps the result at Long.MAX_VALUE and returns the previous value.
    static long
    produced(AtomicLong requested, long amount)
    Concurrent subtraction bound to 0, mostly used to decrement a request tracker by the amount produced by the operator.
    static long
    subOrZero(long a, long b)
    Cap a subtraction to 0

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Subscriptions

      public Subscriptions()

  • Method Details

    • add

      public static long add(AtomicLong requested, long requests)
      Atomically adds the positive value n to the requested value in the AtomicLong and caps the result at Long.MAX_VALUE and returns the previous value.
      Parameters:
      requested - the AtomicLong holding the current requested value
      requests - the value to add, must be positive (not verified)
      Returns:
      the original value before the add

    • add

      public static long add(long a, long b)
      Adds two long values and caps the sum at Long.MAX_VALUE.
      Parameters:
      a - the first value
      b - the second value
      Returns:
      the sum capped at Long.MAX_VALUE

    • produced

      public static long produced(AtomicLong requested, long amount)
      Concurrent subtraction bound to 0, mostly used to decrement a request tracker by the amount produced by the operator.
      Parameters:
      requested - the atomic long keeping track of requests
      amount - delta to subtract
      Returns:
      value after subtraction or zero

    • subOrZero

      public static long subOrZero(long a, long b)
      Cap a subtraction to 0
      Parameters:
      a - left operand
      b - right operand
      Returns:
      Subtraction result or 0 if overflow