public void setRoleArn(String roleArn) {
        this.roleArn = roleArn;
    }
<p>
Use the <code>RoleArn</code> structure to allow Amazon QuickSight to call
<code>redshift:GetClusterCredentials</code> on your cluster. The calling principal must have
<code>iam:PassRole</code> access to pass the role to Amazon QuickSight. The role's trust policy must allow the
Amazon QuickSight service principal to assume the role.
</p>

@param roleArn
       Use the <code>RoleArn</code> structure to allow Amazon QuickSight to call
       <code>redshift:GetClusterCredentials</code> on your cluster. The calling principal must have
       <code>iam:PassRole</code> access to pass the role to Amazon QuickSight. The role's trust policy must allow
       the Amazon QuickSight service principal to assume the role.
aws-java-sdk-quicksight/src/main/java/com/amazonaws/services/quicksight/model/RedshiftIAMParameters.java