| Attributes |
| Name | Required | Request-time | Type | Description |
| id | false | true | java.lang.String | The component identifier for this component. This value must be unique within the closest parent component that is a naming container. |
| binding | false | true | java.lang.String | The value binding expression linking this component to a property in a backing bean. |
| rendered | false | true | java.lang.String | Flag indicating whether or not this component should be rendered (during Render Response Phase), or processed on any subsequent form submit. |
| for | false | true | java.lang.String | Id of the component, this is related to. |
| globalOnly | false | true | java.lang.String | Flag indicating that only messages that are not associated to any particular UIComponent should be displayed. That are messages without clientId. The default is "false". |
| maxNumber | false | true | java.lang.String | Sets the maximum number of messages to show. The default is 2147483647 (more or less unlimited). |
| showSummary | false | true | java.lang.String | Flag indicating whether the summary should be included The default is "true". |
| minSeverity | false | true | java.lang.String | Sets the mininum severity to be shown. E. g. "warn" shows only "warn", "error" and "fatal". The default is "info". |
| showDetail | false | true | java.lang.String | Flag indicating whether the detail should be included The default is "false". |
| orderBy | false | true | java.lang.String | Sets the order of the messages. The default "occurence". |
| maxSeverity | false | true | java.lang.String | Sets the maximum severity to be shown. E. g. "warn" shows only "warn" and "info". When setting this attribute you usually shoud take care, that you have a second message tag to show the higher severity levels. The default is "fatal". |