Tutorials
Binding Component Instance to a Bean Property
JSF Training
Working with Database through JDBC
Working with JavaScript & CSS
Referencing a Localized Message
Referencing Resource Bundle from a Page
Binding Component Value to an Implicit Object
Phase Listener
Value Change Event Listener
Action Event Listener
Using Standard Converter & Custom Converter
Using Standard Validator & Custom Validator
Using redirect element & wild card
Using Core Tags, Html Tags
Binding Component Value to an Implicit Object
JSF provides list of implicit objects. These objects can be referred in value attribute of component in the JSP page.
JSF provides list of implicit objects. These objects can be referred in value attribute of component in the JSP page.Binding Component Value to an Implicit Object
JSF provides list of implicit objects. These objects can be referred in value attribute of component in the JSP page.
| Implicit Object | Description |
| applicationScope | Represents a Map of application scope attribute values with attribute names as keys |
| cookie | Represents a Map of cookie values for the current request with cookie names as keys |
| facesContext | Represents the FacesContext instance for the current request |
| header | Represents a Map of HTTP header values for the current request with header names as keys |
| headerValues | Represents a Map
of String arrays containing all the header
values for HTTP headers in the current request with header names as keys |
| initParam | Represents a Map
of the context initialization parameters |
| param | Represents a Map
of the request parameters for this request with parameter names as keys |
| paramValues | Represents a Map
of String arrays containing all the parameter
values for request parameters in the current request with parameter names
as keys |
| requestScope | Represents a Map
of the request attributes for this request with attribute names as keys |
| sessionScope | Represents a Map
of the session attributes for this request with attribute names as keys |
| view | Represents The root
UIComponent
in the current component tree stored in the FacesRequest
for this request |
For example:
Session Scoped parameter can be accessed as below:
| <h:outputFormat value="Session Scope Value Is: {0}" rendered="#{!(sessionScope.username==null)}"> <f:param value="#{sessionScope.username}"/> </h:outputFormat> |
Request Scoped parameter can be accessed as below:
| <h:outputFormat value="Request Scope Value Is: {0}"
rendered="#{!(requestScope.value==null)}"> <f:param value="#{requestScope.value}"/> </h:outputFormat> |
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