Class FillInterest

java.lang.Object
org.eclipse.jetty.io.FillInterest
public abstract class FillInterest extends Object
A Utility class to help implement EndPoint.fillInterested(Callback) by keeping state and calling the context and callback objects.

  • Constructor Details

    • FillInterest

      protected FillInterest()

  • Method Details

    • register

      public void register(Callback callback) throws ReadPendingException
      Call to register interest in a callback when a read is possible. The callback will be called either immediately if needsFillInterest() returns true or eventually once fillable() is called.
      Parameters:
      callback - the callback to register
      Throws:
      ReadPendingException - if unable to read due to pending read op

    • tryRegister

      public boolean tryRegister(Callback callback)
      Call to register interest in a callback when a read is possible. The callback will be called either immediately if needsFillInterest() returns true or eventually once fillable() is called.
      Parameters:
      callback - the callback to register
      Returns:
      true if the register succeeded

    • fillable

      public boolean fillable()
      Call to signal that a read is now possible.
      Returns:
      whether the callback was notified that a read is now possible

    • isInterested

      public boolean isInterested()
      Returns:
      True if a read callback has been registered

    • getCallbackInvocationType

      public Invocable.InvocationType getCallbackInvocationType()

    • onFail

      public boolean onFail(Throwable cause)
      Call to signal a failure to a registered interest
      Parameters:
      cause - the cause of the failure
      Returns:
      true if the cause was passed to a Callback instance

    • onClose

      public void onClose()

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • toStateString

      public String toStateString()

    • needsFillInterest

      protected abstract void needsFillInterest() throws IOException
      Register the read interest Abstract method to be implemented by the Specific ReadInterest to schedule a future call to fillable() or onFail(Throwable)
      Throws:
      IOException - if unable to fulfill interest in fill