public String getLifecycleTransition() {
        return this.lifecycleTransition;
    }
<p>
The lifecycle transition. For Auto Scaling groups, there are two major lifecycle transitions.
</p>
<ul>
<li>
<p>
To create a lifecycle hook for scale-out events, specify <code>autoscaling:EC2_INSTANCE_LAUNCHING</code>.
</p>
</li>
<li>
<p>
To create a lifecycle hook for scale-in events, specify <code>autoscaling:EC2_INSTANCE_TERMINATING</code>.
</p>
</li>
</ul>

@return The lifecycle transition. For Auto Scaling groups, there are two major lifecycle transitions.</p>
        <ul>
        <li>
        <p>
        To create a lifecycle hook for scale-out events, specify <code>autoscaling:EC2_INSTANCE_LAUNCHING</code>.
        </p>
        </li>
        <li>
        <p>
        To create a lifecycle hook for scale-in events, specify <code>autoscaling:EC2_INSTANCE_TERMINATING</code>
        .
        </p>
        </li>
aws-java-sdk-autoscaling/src/main/java/com/amazonaws/services/autoscaling/model/LifecycleHookSpecification.java