pdf / 6-jsf

Core Tags

●view, subview

●attribute

–Adds configurable attributes to a parent component

●facet

–Signifies a nested component that has a special relationship to its enclosing tag

●param

–Substitutes parameters into a MessageFormat instance and adds query string name-value pairs to a URL

●Validator tags

–validateDoubleRange, validateLength, validateLongRange, validator

●selectItem, selectItems

●verbatim

–Generates a UIOutput component that gets its content from the body of this tag

UI Component Tag Attributes

●id: Uniquely identifies the component.

●immediate

●rendered

●style: Specifies a Cascading Style Sheet (CSS) style for the tag.

●styleClass: Specifies a CSS stylesheet class that contains definitions of the styles.

●value: Identifies an external data source and binds the component’s value to it.

●binding: Identifies a bean property and binds the component instance to it.

UIInput component tags

●converter

●converterMessage

●dir (text direction)

●label

●lang

●required

●requiredMessage

●validator

●validatorMessage

●valueChangeListener

Data-Bound Table Component

<h:dataTable id="items" footerClass="..." headerClass="..." rowClasses="..." styleClass="..." summary="#{bundle.ShoppingCart}" value="#{cart.items}" var="item">

<h:column>

<f:facet name="header">

<h:outputText value="#{bundle.ItemQuantity}" /> </f:facet>

<h:inputText id="quantity" size="4" value="#{item.quantity}" /> </h:column>

<h:column>

<f:facet name="header">

<h:outputText value="#{bundle.ItemTitle}"/> </f:facet>

<h:commandLink action="#{showcart.details}"> <h:outputText value="#{item.item.title}"/>

</h:commandLink>

</h:column>

</h:dataTable>

Data-Bound Table Component

●A list of beans

●An array of beans

●A single bean

●javax.faces.model.DataModel

●java.sql.ResultSet

●javax.servlet.jsp.jstl.sql.ResultSet

●javax.sql.RowSet

javax.faces.convert

●BigDecimalConverter

●BigIntegerConverter

●BooleanConverter

●ByteConverter

●CharacterConverter

●DateTimeConverter

●DoubleConverter

●FloatConverter

●IntegerConverter

●LongConverter

●NumberConverter

●ShortConverter

●Convertor

–String getAsString(FacesContext ctx, UIComponent c, Object val) throws ConverterException

–Object getAsObject(FacesContext ctx, UIComponent c, String newVal) throws ConverterException

Использование

Связать с нужным свойством бина

Integer age = 0;

public Integer getAge(){ return age;}

public void setAge(Integer age) {this.age = age;}

Указать конвертор

<h:inputText converter="javax.faces.convert.IntegerConverter" />

Использовать вложенный тэг

<h:inputText value="#{LoginBean.Age}" /> <f:converter converterId="Integer" />

</h:inputText>

<h:outputText value="#{cashier.shipDate}"> <f:convertDateTime pattern="EEEEEEEE, MMM dd, yyyy" />

</h:outputText>

Standard Validators

●validateDoubleRange

●validateLength

●validateLongRange

●Custom:

–Implement a backing bean method that performs the validation.

–Provide an implementation of the Validator interface to perform the validation + Custom Tag (ValidatorELTag). void validate(FacesContext context, UIComponent component, Object toValidate)

<h:inputText id="quantity" size="4" value="#{item.quantity}" > <f:validateLongRange minimum="#{setting.min}"/>

</h:inputText>

<h:message for="quantity"/>

Implicit Objects

●applicationScope

●cookie

●facesContext

●header

●headerValues

●initParam

●param

●paramValues

●requestScope

●sessionScope

●view

Backing Bean

●Свойства

–A component value

–A component instance

–A Converter implementation

–A Listener implementation

–A Validator implementation

●Методы

–Handle Navigation: public Object nav()

–Handle an Action Event:

public void aaa(ActionEvent event)

–Perform Validation:

–public void vvv(FacesContext ct, UIComponent c, Object val)

–Value-Change Event:

public void aaa(ValueChangedEvent e)