Package javax.servlet
Interface WriteListener
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- All Superinterfaces:
java.util.EventListener
public interface WriteListener extends java.util.EventListener
Callback notification mechanism that signals to the developer it's possible to write content without blocking.- Since:
- Servlet 3.1
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description void
onError(java.lang.Throwable t)
Invoked when an error occurs writing data using the non-blocking APIs.void
onWritePossible()
When an instance of the WriteListener is registered with aServletOutputStream
, this method will be invoked by the container the first time when it is possible to write data.
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Method Detail
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onWritePossible
void onWritePossible() throws java.io.IOException
When an instance of the WriteListener is registered with aServletOutputStream
, this method will be invoked by the container the first time when it is possible to write data. Subsequently the container will invoke this method if and only ifServletOutputStream.isReady()
method has been called and has returnedfalse
.- Throws:
java.io.IOException
- if an I/O related error has occurred during processing
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onError
void onError(java.lang.Throwable t)
Invoked when an error occurs writing data using the non-blocking APIs.
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