org.apache.struts2.components

Class Number

java.lang.Object

org.apache.struts2.components.Component

org.apache.struts2.components.ContextBean

org.apache.struts2.components.Number

public class Number
extends ContextBean

Format Number object in different ways.

The number tag will allow you to format a Number in a quick and easy way, based on the java.text.NumberFormat class. There are four basic number types, a number, a currency, a percentage and an integer. If a currency is specified, the number format will match the given currency. Further parameters can be overridden as needed.

If a type is not defined, it will finally fall back to the default NumberFormat.getNumberInstance() formatting.

Note: If the requested Number object isn't found on the stack, a blank will be returned.

Configurable attributes are:

• name
• currency - you can specify your own currency or as an OGNL expression
• type - if not specified try to find base on struts.number.format property
• groupingUsed - see NumberFormat.isGroupingUsed
• maximumFractionDigits - see NumberFormat.setMaximumFractionDigits
• maximumIntegerDigits - see NumberFormat.setMaximumIntegerDigits
• minimumFractionDigits - see NumberFormat.setMinimumFractionDigits
• minimumIntegerDigits - see NumberFormat.setMinimumIntegerDigits
• parseIntegerOnly - see NumberFormat.isParseIntegerOnly
• roundingMode - see below

Possible values for rounding mode are:

• ceiling
• down
• floor
• half-down
• half-even
• half-up
• unnecessary
• up

Examples

  <!-- START SNIPPET: example -->
  <s:number name="invoice.total" type="currency" currency="XYZ" />
  <s:number name="invoice.quantity" type="number" />
  <s:number name="invoice.discount" type="percentage" />
  <s:number name="invoice.terms" type="integer" />
  <!-- END SNIPPET: example -->
 

Number

Field Summary

Fields

Modifier and Type	Field and Description
static String	NUMBERTAG_PROPERTY Property name to fall back when no format is specified

Fields inherited from class org.apache.struts2.components.ContextBean

var

Fields inherited from class org.apache.struts2.components.Component

actionMapper, COMPONENT_STACK, devMode, parameters, stack, standardAttributesMap, throwExceptionOnELFailure

Constructor Summary

Constructors

Constructor and Description
Number(ValueStack stack)

Method Summary

Modifier and Type	Method and Description
boolean	end(Writer writer, String body) Callback for the end tag of this component.
String	getCurrency()
Integer	getMaximumFractionDigits()
Integer	getMaximumIntegerDigits()
Integer	getMinimumFractionDigits()
Integer	getMinimumIntegerDigits()
String	getName()
String	getRoundingMode()
String	getType()
Boolean	isGroupingUsed()
Boolean	isParseIntegerOnly()
void	setCurrency(String currency)
void	setGroupingUsed(Boolean groupingUsed)
void	setMaximumFractionDigits(Integer maximumFractionDigits)
void	setMaximumIntegerDigits(Integer maximumIntegerDigits)
void	setMinimumFractionDigits(Integer minimumFractionDigits)
void	setMinimumIntegerDigits(Integer minimumIntegerDigits)
void	setName(String name)
void	setParseIntegerOnly(Boolean parseIntegerOnly)
void	setRoundingMode(String roundingMode)
void	setType(String type)

Methods inherited from class org.apache.struts2.components.ContextBean

getVar, putInContext, setVar

Methods inherited from class org.apache.struts2.components.Component

addAllParameters, addParameter, altSyntax, completeExpressionIfAltSyntax, copyParams, determineActionURL, determineNamespace, end, escapeHtmlBody, fieldError, findAncestor, findString, findString, findStringIfAltSyntax, findValue, findValue, findValue, getComponentStack, getParameters, getStack, getStandardAttributes, isValidTagAttribute, popComponentStack, setActionMapper, setDevMode, setThrowExceptionsOnELFailure, setUrlHelper, start, stripExpressionIfAltSyntax, toString, usesBody

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NUMBERTAG_PROPERTY

public static final String NUMBERTAG_PROPERTY

Property name to fall back when no format is specified

See Also:

Constant Field Values

Constructor Detail

Number

public Number(ValueStack stack)

Method Detail

end

public boolean end(Writer writer,
                   String body)

Description copied from class: Component

Callback for the end tag of this component. Should the body be evaluated again?
NOTE: will pop component stack.

Overrides:

end in class Component

Parameters:

writer - the output writer.

body - the rendered body.

Returns:

true if the body should be evaluated again

setType

public void setType(String type)

setCurrency

public void setCurrency(String currency)

getName

public String getName()

Returns:

Returns the name.

setName

public void setName(String name)

getType

public String getType()

Returns:

Returns the format.

getCurrency

public String getCurrency()

Returns:

Returns the currency.

setGroupingUsed

public void setGroupingUsed(Boolean groupingUsed)

isGroupingUsed

public Boolean isGroupingUsed()

Returns:

Returns the grouping used.

getMaximumFractionDigits

public Integer getMaximumFractionDigits()

Returns:

the maximumFractionDigits

setMaximumFractionDigits

public void setMaximumFractionDigits(Integer maximumFractionDigits)

Parameters:

maximumFractionDigits - the maximumFractionDigits to set

getMaximumIntegerDigits

public Integer getMaximumIntegerDigits()

Returns:

the maximumIntegerDigits

setMaximumIntegerDigits

public void setMaximumIntegerDigits(Integer maximumIntegerDigits)

Parameters:

maximumIntegerDigits - the maximumIntegerDigits to set

getMinimumFractionDigits

public Integer getMinimumFractionDigits()

Returns:

the minimumFractionDigits

setMinimumFractionDigits

public void setMinimumFractionDigits(Integer minimumFractionDigits)

Parameters:

minimumFractionDigits - the minimumFractionDigits to set

getMinimumIntegerDigits

public Integer getMinimumIntegerDigits()

Returns:

the minimumIntegerDigits

setMinimumIntegerDigits

public void setMinimumIntegerDigits(Integer minimumIntegerDigits)

Parameters:

minimumIntegerDigits - the minimumIntegerDigits to set

isParseIntegerOnly

public Boolean isParseIntegerOnly()

Returns:

the parseIntegerOnly

setParseIntegerOnly

public void setParseIntegerOnly(Boolean parseIntegerOnly)

Parameters:

parseIntegerOnly - the parseIntegerOnly to set

getRoundingMode

public String getRoundingMode()

Returns:

the roundingMode

setRoundingMode

public void setRoundingMode(String roundingMode)

Parameters:

roundingMode - the roundingMode to set