public void setPipelineExecutionId(String pipelineExecutionId) {
        this.pipelineExecutionId = pipelineExecutionId;
    }
<p>
The unique system-generated ID of the pipeline execution that was stopped.
</p>

@param pipelineExecutionId
       The unique system-generated ID of the pipeline execution that was stopped.
aws-java-sdk-codepipeline/src/main/java/com/amazonaws/services/codepipeline/model/StopPipelineExecutionResult.java