com.uber.cadence.workflow

Interface QueueProducer<E>

All Known Subinterfaces:

WorkflowQueue<E>

public interface QueueProducer<E>

Method Summary

Modifier and Type	Method and Description
boolean	offer(E e) Inserts the specified element into this queue if it is possible to do so immediately without violating capacity restrictions, returning true upon success and false if no space is currently available.
boolean	offer(E e, long timeout, java.util.concurrent.TimeUnit unit) Inserts the specified element into this queue, waiting up to the specified wait time if necessary for space to become available.
void	put(E e) Inserts the specified element into this queue, waiting if necessary for space to become available.

Method Detail

offer

boolean offer(E e)

Inserts the specified element into this queue if it is possible to do so immediately without violating capacity restrictions, returning true upon success and false if no space is currently available.

Parameters:

e - the element to add

Returns:

true if the element was added to this queue, else false

Throws:

java.lang.ClassCastException - if the class of the specified element prevents it from being added to this queue

java.lang.NullPointerException - if the specified element is null

java.lang.IllegalArgumentException - if some property of the specified element prevents it from being added to this queue

put

void put(E e)
  throws java.lang.InterruptedException

Inserts the specified element into this queue, waiting if necessary for space to become available.

Parameters:

e - the element to add

Throws:

java.lang.InterruptedException - if interrupted while waiting

java.lang.ClassCastException - if the class of the specified element prevents it from being added to this queue

java.lang.NullPointerException - if the specified element is null

java.lang.IllegalArgumentException - if some property of the specified element prevents it from being added to this queue

offer

boolean offer(E e,
              long timeout,
              java.util.concurrent.TimeUnit unit)
       throws java.lang.InterruptedException

Inserts the specified element into this queue, waiting up to the specified wait time if necessary for space to become available.

Parameters:

e - the element to add

timeout - how long to wait before giving up, in units of unit

unit - a TimeUnit determining how to interpret the timeout parameter

Returns:

true if successful, or false if the specified waiting time elapses before space is available

Throws:

java.lang.InterruptedException - if interrupted while waiting

java.lang.ClassCastException - if the class of the specified element prevents it from being added to this queue

java.lang.NullPointerException - if the specified element is null

java.lang.IllegalArgumentException - if some property of the specified element prevents it from being added to this queue