java barcode generator example Attributes in Java

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Attributes
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Attribute currencyCode currencySymbol for (20) Type String String String Description ISO-4217 currency code (eg, US Dollar = USD ) String to use as currency symbol (eg, $ for USD) Usage of the for attribute with the f:convertNumber tag only has significance when the tag is nested as a child of a Composite Component If specified, then the value must be equal to the value of an id attribute associated with an exposed object If true (default), grouping separators are included in the result Required No No Yes (if nested as a child tag of a Composite Component), otherwise, No
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groupingUsed
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boolean
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Part III:
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JavaSer ver Faces Tools and Libraries
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Attribute integerOnly locale
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Type boolean String or javautilLocale
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Description If true, only the integer portion is parsed The default is false The locale to use instead of the default determined by FacesContextgetViewRoot( ) getLocale( ) The maximum number of fraction digits to be formatted (in the output) The maximum number of integer digits to be formatted (in the output) The minimum number of fraction digits to be formatted (in the output) The minimum number of integer digits to be formatted (in the output) The symbols forming a number pattern that is defined in java textDecimalFormat One of the accepted type values: Valid values are number , currency , and percentage The default value is number The ValueExpression expression that evaluates to an object that implements javaxfacesconvert Converter
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Required No No
maxFractionDigits
maxIntegerDigits
minFractionDigits
minIntegerDigits
pattern
String
type
String
binding (12, 20)
ValueExpression
Example Usage
<h:inputText id="sal" value="#{employeesalary}"> <f:convertNumber integerOnly="true"/> </h:inputText>
Pattern Formats
A pattern of symbols determines what a formatted number looks like For example, the locale-sensitive pattern ###,###### generates the formatted number 123,456789 if the locale is en_US See the Java class javatextDecimalFormat for more information about number patterns and symbols
16:
The Standard JSF Component Library
The f:converter Tag
The f:converter tag creates an instance of the class registered with the specified converter ID, which must implement the javaxfacesconvertConverter interface, and associates it with the component represented by the closest parent UIComponent
Attributes
Attribute converterId Type String Description The ID (shown next) used to register a class implementing the Converter interface Usage of the for attribute with the f:converter tag only has significance when the tag is nested as a child of a Composite Component If specified, then the value must be equal to the value of an id attribute associated with an exposed object A ValueExpression expression that evaluates to an object that implements javaxfacesconvertConverter Required Yes (11) No (12, 20) Yes (if nested as a child tag of a Composite Component), otherwise, No
for (20)
String
PART III
binding (12, 20)
ValueExpression
Example Usage
<h:inputText> <f:converter converterId="Converter ID"/> </h:inputText>
Converter ID List
javaxfacesBigDecimal javaxfacesBigInteger javaxfacesBoolean javaxfacesByte javaxfacesCharacter javaxfacesDateTime javaxfacesDouble javaxfacesFloat javaxfacesInteger javaxfacesLong javaxfacesNumber javaxfacesShort
Part III:
JavaSer ver Faces Tools and Libraries
TIP If type and binding are both specified, the type is used to instantiate the class and the binding is
used as the target of a set operation where the value will be the created Converter instance This is useful if you want to manage your converter instances manually yet still allow them to be created from code referenced from the JSP page
The f:event Tag (20)
The f:event tag enables a page author to declaratively register a ComponentSystemEventListener on a UIComponent
Attributes
Attribute listener (20) Type MethodExpression Description If specified, then the value must be a MethodExpression that refers to a method that has the same signature as the processEvent method in the ComponentSystemEventListener interface Specifies the event name, which can be one of: preRenderComponent, preRenderView, postAddToView, preValidate, postValidate Additionally, any fully qualified class name that extends ComponentSystemEvent may be specified Required true
type (20)
String
true
Example Usage
<f:event type="preRenderComponent" listener="#{testManagedBeanbeforeRenderListener}" /> <f:event type="javaxfaceseventPreRenderComponentEvent" listener="#{testManagedBeanbeforeRenderListener}" />
The f:facet Tag
The f:facet tag signifies a nested component that has a special relationship to its enclosing tag For example, stating that the header of a table is to be provided by a JSF component This element adds the component represented by the JSF action in its body as a facet with the specified name to the component represented by the closest JSF component parent action element This tag only allows one component to be nested within itself To use multiple components as a facet, create them as children of a simple container component For example, nest the corresponding HTML library component actions within the body of a panelGroup component
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