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Allow Rest-Dispatch resources to return their raw result type directly.

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/**
 * Copyright 2014 ArcBees Inc.
 *
 * 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
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.gwtplatform.dispatch.rest.delegates.test;

import com.google.gwt.user.client.rpc.AsyncCallback;

/**
 * Stubbing context for a {@link com.gwtplatform.dispatch.rest.delegates.client.ResourceDelegate ResourceDelegate} call
 * that should fail.
 *
 * @param  a resource type.
 */
public class FailureDelegateStubber extends AbstractDelegateStubber> {
    private Throwable throwable;

    FailureDelegateStubber(DelegateMocking delegateMocking) {
        super(delegateMocking);
    }

    /**
     * Specify the {@link Throwable} that will be assigned to {@link AsyncCallback#onFailure(Throwable)} when the call
     * represented by the current context is performed.
     *
     * @param throwable the throwable passed to the {@link AsyncCallback}.
     *
     * @return this stubbing context.
     */
    public FailureDelegateStubber withThrowable(Throwable throwable) {
        this.throwable = throwable;
        return self();
    }

    @Override
    protected void updateCallback(AsyncCallback callback) {
        callback.onFailure(throwable);
    }

    @Override
    protected FailureDelegateStubber self() {
        return this;
    }
}