ReadListener (Servlet 5.0 API Documentation - Apache Tomcat 10.0.27)

All Superinterfaces:

java.util.EventListener
```
public interface ReadListener
extends java.util.EventListener
```
Receives notification of read events when using non-blocking IO.

Since:

Servlet 3.1

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`onAllDataRead()`	Invoked when the request body has been fully read.
`void`	`onDataAvailable()`	Invoked when data is available to read.
`void`	`onError(java.lang.Throwable throwable)`	Invoked if an error occurs while reading the request body.

- Method Detail
  - onDataAvailable
```
void onDataAvailable()
              throws java.io.IOException
```
    Invoked when data is available to read. The container will invoke this method the first time for a request as soon as there is data to read. Subsequent invocations will only occur if a call to ServletInputStream.isReady() has returned false and data has subsequently become available to read.
    
    Throws:
    
    java.io.IOException - id an I/O error occurs while processing the event
  - onAllDataRead
```
void onAllDataRead()
            throws java.io.IOException
```
    Invoked when the request body has been fully read.
    
    Throws:
    
    java.io.IOException - id an I/O error occurs while processing the event
  - onError
```
void onError(java.lang.Throwable throwable)
```
    Invoked if an error occurs while reading the request body.
    
    Parameters:
    
    throwable - The exception that occurred