new WorkerExecutor()
An executor for executing blocking code in Vert.x .
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Methods
close()
Close the executor.
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executeBlocking(blockingCodeHandler, ordered, resultHandler)
Safely execute some blocking code.
Executes the blocking code in the handler blockingCodeHandler
using a thread from the worker pool.
When the code is complete the handler resultHandler
will be called with the result on the original context
(e.g. on the original event loop of the caller).
A Future
instance is passed into blockingCodeHandler
. When the blocking code successfully completes,
the handler should call the Future#complete or Future#complete method, or the Future#fail
method if it failed.
In the blockingCodeHandler
the current context remains the original context and therefore any task
scheduled in the blockingCodeHandler
will be executed on the this context and not on the worker thread.
Parameters:
Name | Type | Description |
---|---|---|
blockingCodeHandler |
function | handler representing the blocking code to run |
ordered |
boolean | if true then if executeBlocking is called several times on the same context, the executions for that context will be executed serially, not in parallel. if false then they will be no ordering guarantees |
resultHandler |
function | handler that will be called when the blocking code is complete |
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isMetricsEnabled() → {boolean}
Whether the metrics are enabled for this measured object
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Returns:
true if the metrics are enabled
- Type
- boolean