public void setEC2SecurityGroupOwnerId(String eC2SecurityGroupOwnerId) {
        this.eC2SecurityGroupOwnerId = eC2SecurityGroupOwnerId;
    }
<p>
Amazon Web Services account number of the owner of the EC2 security group specified in the
<code>EC2SecurityGroupName</code> parameter. The Amazon Web Services access key ID isn't an acceptable value. For
VPC DB security groups, <code>EC2SecurityGroupId</code> must be provided. Otherwise,
<code>EC2SecurityGroupOwnerId</code> and either <code>EC2SecurityGroupName</code> or
<code>EC2SecurityGroupId</code> must be provided.
</p>

@param eC2SecurityGroupOwnerId
       Amazon Web Services account number of the owner of the EC2 security group specified in the
       <code>EC2SecurityGroupName</code> parameter. The Amazon Web Services access key ID isn't an acceptable
       value. For VPC DB security groups, <code>EC2SecurityGroupId</code> must be provided. Otherwise,
       <code>EC2SecurityGroupOwnerId</code> and either <code>EC2SecurityGroupName</code> or
       <code>EC2SecurityGroupId</code> must be provided.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/AuthorizeDBSecurityGroupIngressRequest.java