| 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 | false | javax.el.ValueExpression
(must evaluate to javax.faces.component.UIComponent)
| The ValueExpression linking this component to a property in a backing bean. |
| value | true | false | javax.el.ValueExpression
(must evaluate to com.esri.adf.web.data.WebContext)
| The current value of the component. Must be an object of type com.esri.adf.web.data.WebContext. This object is represents the component's Model in an MVC architecture. The WebContext object is responsible for governing the lifecyle of other Model objects that participate in the Web ADF, orchestrating them, and facilitating collaboration between them. |
| preserve | false | false | javax.el.ValueExpression
(must evaluate to boolean)
| By default, the context is stored in session. When preserve is "true", when dynamically switching the "resource" to a second context, the old context is saved. When switching back to the first context, it is loaded from session and preserved in the same state where it was left, i.e., zoomed to a certain location. Note that saving contexts takes up memory. When preserve is "false", old contexts are not maintained in session after a new one is specified. If you do not need to preserve contexts or want to minimize memory usage, set preserve to "false". |