Overrides io.netty.util.concurrent.DefaultPromise.cancel.

Implements java.util.concurrent.Future.cancel, io.netty.util.concurrent.Future.cancel.

Doc from java.util.concurrent.Future.cancel.

Attempts to cancel execution of this task. This method has no effect if the task is already completed or cancelled, or could not be cancelled for some other reason. Otherwise, if this task has not started when cancel is called, this task should never run. If the task has already started, then the mayInterruptIfRunning parameter determines whether the thread executing this task (when known by the implementation) is interrupted in an attempt to stop the task.

The return value from this method does not necessarily indicate whether the task is now cancelled; use isCancelled.

Parameters

mayInterruptIfRunning:boolean

true if the thread executing this task should be interrupted (if the thread is known to the implementation); otherwise, in-progress tasks are allowed to complete

Returns:boolean

false if the task could not be cancelled, typically because it has already completed; true otherwise. If two or more threads cause a task to be cancelled, then at least one of them returns true. Implementations may provide stronger guarantees.

Annotations

@Override

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

obj:Object

the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations

@Override

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int

a hash code value for this object

Annotations

@Override

Implements java.util.concurrent.RunnableFuture.run.

Doc from java.util.concurrent.RunnableFuture.run.

Sets this Future to the result of its computation unless it has been cancelled.

Annotations

@Override

Overrides io.netty.util.concurrent.DefaultPromise.setFailure.

Implements io.netty.util.concurrent.Promise.setFailure.

Doc from io.netty.util.concurrent.Promise.setFailure.

Marks this future as a failure and notifies all listeners. If it is success or failed already it will throw an IllegalStateException.

Annotations

@Override

Overrides io.netty.util.concurrent.DefaultPromise.setSuccess.

Implements io.netty.util.concurrent.Promise.setSuccess.

Doc from io.netty.util.concurrent.Promise.setSuccess.

Marks this future as a success and notifies all listeners. If it is success or failed already it will throw an IllegalStateException.

Annotations

@Override

Overrides io.netty.util.concurrent.DefaultPromise.setUncancellable.

Implements io.netty.util.concurrent.Promise.setUncancellable.

Doc from io.netty.util.concurrent.Promise.setUncancellable.

Make this future impossible to cancel.

Returns:boolean

true if and only if successfully marked this future as uncancellable or it is already done without being cancelled. false if this future has been cancelled already.

Annotations

@Override

Overrides io.netty.util.concurrent.DefaultPromise.tryFailure.

Implements io.netty.util.concurrent.Promise.tryFailure.

Doc from io.netty.util.concurrent.Promise.tryFailure.

Marks this future as a failure and notifies all listeners.

Returns:boolean

true if and only if successfully marked this future as a failure. Otherwise false because this future is already marked as either a success or a failure.

Annotations

@Override

Overrides io.netty.util.concurrent.DefaultPromise.trySuccess.

Implements io.netty.util.concurrent.Promise.trySuccess.

Doc from io.netty.util.concurrent.Promise.trySuccess.

Marks this future as a success and notifies all listeners.

Returns:boolean

true if and only if successfully marked this future as a success. Otherwise false because this future is already marked as either a success or a failure.

Annotations

@Override