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 // Copyright 2010 The Apache Software Foundation
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 // Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package org.apache.tapestry5;
Extends ComponentEventCallback with a way to determine if the underlying event has been aborted due to a some event returning an acceptable, non-null value. The standard implementation of this is a wrapper around either the traditional or Ajax versions of the service, i.e., they allow for a navigational result.

Instances of this are made available via the org.apache.tapestry5.annotations.Environmental annotation.

Returns true if a return value from an event handler method was processed.
    boolean isAborted();

If processing a return value threw an IOException, invoking this method will rethrow it.
    void rethrow() throws IOException;
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