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## org.apache.axis2.engine
Class AbstractDispatcher

    java.lang.Object
      org.apache.axis2.handlers.AbstractHandler
          org.apache.axis2.engine.AbstractDispatcher

All Implemented Interfaces:
  Handler

Direct Known Subclasses:
  AddressingBasedDispatcher, HTTPLocationBasedDispatcher, RequestURIBasedDispatcher, RequestURIOperationDispatcher, SOAPActionBasedDispatcher, SOAPMessageBodyBasedDispatcher

    public abstract class AbstractDispatcher

extends AbstractHandler

This the base class for all dispatchers. A dispatcher's task is to find the service for an incoming SOAP message.

In Axis2, a chain of dispatchers is setup. Each tries to dispatch and return without throwing an exception, in case it fails to find the service or operation. Dispatchers look for services, operations, or both.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.axis2.engine.Handler
`Handler.InvocationResponse`

Field Summary
`static String` | `NAME` Field NAME

Fields inherited from class org.apache.axis2.handlers.AbstractHandler
`handlerDesc`

Constructor Summary
`AbstractDispatcher()`

Method Summary
`abstract AxisOperation` | `findOperation(AxisService service, MessageContext messageContext)` Called by Axis Engine to find the operation.
`abstract AxisService` | `findService(MessageContext messageContext)` Called by Axis Engine to find the service.
`abstract void` | `initDispatcher()`
`Handler.InvocationResponse` | `invoke(MessageContext msgctx)` This method will be called on each registered handler when a message needs to be processed.

Methods inherited from class org.apache.axis2.handlers.AbstractHandler
`cleanup, flowComplete, getHandlerDesc, getName, getParameter, init, toString`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

### NAME

    public static final String NAME

  Field NAME

  See Also:
    Constant Field Values

Constructor Detail

### AbstractDispatcher

    public AbstractDispatcher()

Method Detail

### findOperation

    public abstract AxisOperation findOperation(AxisService service,
                                                MessageContext messageContext)
                                         throws AxisFault

  Called by Axis Engine to find the operation.

  Parameters:
    `service` -
    `messageContext` -
  Returns:
    Returns AxisOperation.
  Throws:
    `AxisFault`

### findService

    public abstract AxisService findService(MessageContext messageContext)
                                     throws AxisFault

  Called by Axis Engine to find the service.

  Parameters:
    `messageContext` -
  Returns:
    Returns AxisService.
  Throws:
    `AxisFault`

### initDispatcher

    public abstract void initDispatcher()

### invoke

    public Handler.InvocationResponse invoke(MessageContext msgctx)
                                      throws AxisFault

  Description copied from interface: `Handler`
  This method will be called on each registered handler when a message needs to be processed. If the message processing is paused by the handler, then this method will be called again for the handler that paused the processing once it is resumed.

  This method may be called concurrently from multiple threads.

  Handlers that want to determine the type of message that is to be processed (e.g. response vs request, inbound vs. outbound, etc.) can retrieve that information from the MessageContext via MessageContext.getFLOW() and MessageContext.getAxisOperation().getMessageExchangePattern() APIs.

  Parameters:
    `msgctx` -
  Returns:
    An InvocationResponse that indicates what the next step in the message processing should be.
  Throws:
    `AxisFault`

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