PoolCallback (Apache Tomcat 9.0.111 API Documentation)
Description: declaration: package: org.apache.tomcat.jni, interface: PoolCallback

# Interface PoolCallback

@Deprecated public interface PoolCallback
Deprecated.
The scope of the APR/Native Library will be reduced in Tomcat 9.1.x / Tomcat Native 2.x and has been reduced in Tomcat 10.1.x / Tomcat Native 2.x onwards to only include those components required to provide OpenSSL integration with the NIO and NIO2 connectors.
PoolCallback Interface.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `int`
  `callback()`
  Deprecated.
  Called when the pool is destroyed or cleared

- ## Method Details

  - ### callback

    int callback()
    Deprecated.
    Called when the pool is destroyed or cleared
    Returns:
      Function must return APR_SUCCESS