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Rule JSF Versions Parent Elements Child Elements Annotation(s) Uniqueness Constraints Value 20 application validator-id @FacesValidator None
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The following example illustrates the way in which the default-validators element can be used:
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<faces-config> <application> <default-validators> <validator-id> comexamplejsfTestDefaultValidator </validator-id> </default-validators> </application> </faces-config>
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The following example illustrates equivalent configuration via the @FacesValidator annotation:
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@FacesValidator(isDefault=true, value="testValidator") public class TestDefaultValidator implements Validator { }
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Configuring JavaServer Faces Applications
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The default-value Element
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The default-value element is used to specify the default value for an attribute or a property Default values differ from suggested values in that default values will be assigned to an attribute or property whereas suggested values are only suggestions and may or may not be applied to an attribute or property
Usage Rules
Rule JSF Versions Parent Elements Child Elements Annotation(s) Uniqueness Constraints Value 10, 11, 12, 20 attribute, property None None None
Example Usage
There are two ways that the default-value element can be used The first way, shown here, defines a default value for an attribute:
<faces-config> <component> <component-type> comexamplejsfTestComponent </component-type> <component-class> comexamplejsfUITestComponent </component-class> <attribute> <attribute-name>testAttribute</attribute-name> <attribute-class>javalangString</attribute-class> <default-value>testDefaultValue</default-value> </attribute> </component> </faces-config>
PART III
The following is the second way to use the default-value element to define a default value for a property:
<faces-config> <converter> <component-for-class> javalangLong </component-for-class> <component-class> comexamplejsfLongConverter </component-class>
Part III:
JavaSer ver Faces Tools and Libraries
<property> <property-name>testAttribute</property-name> <property-class>javalangString</property-class> <default-value>testDefaultValue</default-value> </property> </converter> </faces-config>
The el-resolver Element
The el-resolver element is used to specify the fully qualified class name of a javaxelELResolver implementation class that will replace the JSF implementation s default expression language resolver implementation The expression language resolver is called each time an expression must be resolved The el-resolver element provides the ability to override the default JSF expression language resolving by plugging in a custom ELResolver For more on this topic, see 11
Usage Rules
Rule JSF Versions Parent Elements Child Elements Annotation(s) Uniqueness Constraints Value 12, 20 application None None None
Example Usage
The following example illustrates the usage of the el-resolver element:
<faces-config> <application> <el-resolver> comexamplejsfTestELResolver </el-resolver> </application> </faces-config>
The exception-handler-factory Element
The exception-handler-factory element is used to specify the fully qualified class name of a javaxfacescontextExceptionHandlerFactory implementation class that will replace or decorate the JSF implementation s default exception handler factory implementation The exception handler factory is used to retrieve and store a javaxfacescontextExceptionHandler instance for the current Web application See 6 for more details
15:
Configuring JavaServer Faces Applications
Usage Rules
Rule JSF Versions Parent Elements Child Elements Annotation(s) Uniqueness Constraints Value 20 factory None None None
Example Usage
The following example illustrates the usage of the exception-handler-factory element:
<faces-config> <factory> <exception-handler-factory> comexamplejsfTestExceptionHandlerFactory </exception-handler-factory> </factory> </faces-config>
PART III
The external-context-factory Element
The external-context-factory element is used to specify the fully qualified class name of a javaxfacescontextExternalContextFactory implementation class that will replace or decorate the JSF implementation s default external context factory implementation The external context factory is used to retrieve and store a javaxfacescontextExternalContext instance for the current Web application See 13 for more details
Usage Rules
Rule JSF Versions Parent Elements Child Elements Annotation(s) Uniqueness Constraints Value 20 factory None None None
Example Usage
The following example illustrates the usage of the external-context-factory element:
<faces-config> <factory> <external-context-factory>
Part III:
JavaSer ver Faces Tools and Libraries
comexamplejsfTestExternalContextFactory </external-context-factory> </factory> </faces-config>
The faces-config Element
The faces-config element is the root element for the JSF configuration file and thus encapsulates all other elements in the file This element has no other use than to denote the beginning and end of the configuration data Note that JSF 20 adds the new metadatacomplete attribute to the faces-config element, which may only be used in the /WEB-INF/ faces-configxml file If true, then annotation scanning will not be performed
Attributes
Attribute version Description Specifies the JSF implementation version that the configuration file is for Note: This attribute was introduced in JSF 12 and does not apply to previous versions Required Yes
Usage Rules
Rule JSF Versions Parent Elements Child Elements Value 10, 11, 12, 20 None absolute-ordering (20), application, behavior (20), component, converter, faces-config-extension (12), factory, lifecycle, managedbean, name (20), ordering (20), navigation-rule, referenced-bean, render-kit, validator Note: The parenthetical numbers represent the JSF versions that the corresponding child element applies to if the child element does not apply to all JSF versions Annotation(s) Uniqueness Constraints None Because this element is the root element for the JSF configuration file, it must occur only once
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