public void setAddressDefinition(String addressDefinition) {
        this.addressDefinition = addressDefinition;
    }
<p>
An IP address or a block of IP addresses.
</p>

@param addressDefinition
       An IP address or a block of IP addresses.
aws-java-sdk-securityhub/src/main/java/com/amazonaws/services/securityhub/model/RuleGroupSourceStatelessRuleMatchAttributesSources.java