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/* 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 org.flowable.engine.delegate.event;

import org.flowable.common.engine.api.delegate.event.FlowableEvent;

/**
 * An {@link FlowableEvent} related to a signal being sent to an activity.
 * 
 * @author Frederik Heremans
 */
public interface FlowableSignalEvent extends FlowableActivityEvent {

    /**
     * @return the name of the signal. Returns null, if no specific signal name has been specified when signaling.
     */
    String getSignalName();

    /**
     * @return the payload that was passed when signaling. Returns null, if no payload was passed.
     */
    Object getSignalData();

}