org.zkoss.zul.impl
Class NumberInputElement

java.lang.Object
  org.zkoss.zk.ui.AbstractComponent
      org.zkoss.zk.ui.HtmlBasedComponent
          org.zkoss.zul.impl.XulElement
              org.zkoss.zul.impl.InputElement
                  org.zkoss.zul.impl.FormatInputElement
                      org.zkoss.zul.impl.NumberInputElement

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, org.zkoss.zk.ui.Component, org.zkoss.zk.ui.sys.ComponentCtrl, Constrainted

Direct Known Subclasses:

Decimalbox, Doublebox, Intbox

public abstract class NumberInputElement
extends FormatInputElement

A skeletal implementation for number-type input box.

Author:

tomyeh

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.zkoss.zul.impl.InputElement

InputElement.ExtraCtrl

Field Summary

Fields inherited from class org.zkoss.zk.ui.HtmlBasedComponent

RS_NO_DISPLAY, RS_NO_HEIGHT, RS_NO_WIDTH

Fields inherited from interface org.zkoss.zk.ui.Component

APPLICATION_SCOPE, COMPONENT_SCOPE, DESKTOP_SCOPE, PAGE_SCOPE, REQUEST_SCOPE, SESSION_SCOPE, SPACE_SCOPE

Constructor Summary

NumberInputElement()

Method Summary

protected java.lang.String	formatNumber(java.lang.Object value, java.lang.String defaultFormat) Formats a number (Integer, BigDecimal...) into a string.
int	getRoundingMode() Returns the rounding mode.
void	setRoundingMode(int mode) Sets the rounding mode.
void	setRoundingMode(java.lang.String name) Sets the rounding mode by the name.
protected java.lang.Object[]	toNumberOnly(java.lang.String val) Filters out non digit characters, such comma and whitespace, from the specified value.

Methods inherited from class org.zkoss.zul.impl.FormatInputElement

getFormat, getOuterAttrs, isAsapRequired, setFormat

Methods inherited from class org.zkoss.zul.impl.InputElement

checkUserError, clearErrorMessage, coerceFromString, coerceToString, getAreaText, getCols, getConstraint, getErrorMessage, getInnerAttrs, getMaxlength, getName, getRawText, getRawValue, getTabindex, getTargetValue, getText, getType, isChildable, isDisabled, isMultiline, isReadonly, isValid, newExtraCtrl, onWrongValue, select, setCols, setConstraint, setConstraint, setDisabled, setMaxlength, setName, setRawValue, setReadonly, setSelectedText, setSelectionRange, setTabindex, setText, showCustomError, validate

Methods inherited from class org.zkoss.zul.impl.XulElement

getAction, getAllOnClickAttrs, getContext, getPopup, getTooltip, setAction, setContext, setPopup, setTooltip

Methods inherited from class org.zkoss.zk.ui.HtmlBasedComponent

addEventListener, appendAsapAttr, focus, getDraggable, getDroppable, getHeight, getLeft, getRealStyle, getRealStyleFlags, getSclass, getStyle, getTooltiptext, getTop, getWidth, getZIndex, removeEventListener, setClass, setDraggable, setDroppable, setHeight, setLeft, setSclass, setStyle, setTooltiptext, setTop, setWidth, setZIndex

Methods inherited from class org.zkoss.zk.ui.AbstractComponent

addAnnotation, addAnnotation, addEventHandler, addSharedAnnotationMap, addSharedEventHandlerMap, appendChild, applyProperties, clone, containsVariable, detach, equals, getAnnotatedProperties, getAnnotatedPropertiesBy, getAnnotation, getAnnotation, getAnnotations, getAnnotations, getAttribute, getAttribute, getAttributes, getAttributes, getChildren, getDefinition, getDesktop, getEventHandler, getExtraCtrl, getFellow, getFellowIfAny, getId, getListenerIterator, getMold, getMoldURI, getNamespace, getPage, getParent, getPropagatee, getRoot, getSpaceOwner, getUuid, getVariable, insertBefore, invalidate, isListenerAvailable, isVisible, onChildAdded, onChildRemoved, onDrawNewChild, redraw, removeAttribute, removeAttribute, removeChild, response, sessionDidActivate, sessionWillPassivate, setAttribute, setAttribute, setComponentDefinition, setId, setMold, setPage, setParent, setVariable, setVisible, smartUpdate, smartUpdate, smartUpdate, toString, unsetVariable

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

NumberInputElement

public NumberInputElement()

Method Detail

setRoundingMode

public void setRoundingMode(int mode)

Sets the rounding mode. Note: You cannot change the rounding mode unless you are using Java 6 or later.

Parameters:

mode - the rounding mode. Allowed value: BigDecimal.ROUND_CEILING, BigDecimal.ROUND_DOWN, BigDecimal.ROUND_FLOOR, BigDecimal.ROUND_HALF_DOWN, BigDecimal.ROUND_HALF_UP, BigDecimal.ROUND_HALF_EVEN, BigDecimal.ROUND_UNNECESSARY and BigDecimal.ROUND_UP

Throws:

java.lang.UnsupportedOperationException - if Java 5 or below

setRoundingMode

public void setRoundingMode(java.lang.String name)

Sets the rounding mode by the name. Note: You cannot change the rounding mode unless you are using Java 6 or later.

Parameters:

name - the rounding mode's name. Allowed value:

CEILING

Rounding mode to round towards positive infinity.

DOWN

Rounding mode to round towards zero.

FLOOR

Rounding mode to round towards negative infinity.

HALF_DOWN

Rounding mode to round towards "nearest neighbor" unless both neighbors are equidistant, in which case round down.

HALF_EVEN

Rounding mode to round towards the "nearest neighbor" unless both neighbors are equidistant, in which case, round towards the even neighbor.

HALF_UP

Rounding mode to round towards "nearest neighbor" unless both neighbors are equidistant, in which case round up.

UNNECESSARY

Rounding mode to assert that the requested operation has an exact result, hence no rounding is necessary.

UP

Rounding mode to round away from zero.

Throws:

java.lang.UnsupportedOperationException - if Java 5 or below

See Also:

RoundingModes

getRoundingMode

public int getRoundingMode()

Returns the rounding mode.

Default: BigDecimal.ROUND_HALF_EVEN.

formatNumber

protected java.lang.String formatNumber(java.lang.Object value,
                                        java.lang.String defaultFormat)

Formats a number (Integer, BigDecimal...) into a string. If null, an empty string is returned.

A utility to assist the handling of numeric data.

Parameters:

defaultFormat - used if FormatInputElement.getFormat() returns null. If defaultFormat and FormatInputElement.getFormat() are both null, the system's default format is used.

See Also:

toNumberOnly(java.lang.String)

toNumberOnly

protected java.lang.Object[] toNumberOnly(java.lang.String val)

Filters out non digit characters, such comma and whitespace, from the specified value. It is designed to let user enter data in more free style. They may or may not enter data in the specified format.

Returns:

a two element array. The first element is the string to parse with, say, Double.parseDouble. The second element is an integer to indicate how many digits the result shall be scaled. For example, if the second element is 2. Then, the result shall be divided with 10 ^ 2.

See Also:

formatNumber(java.lang.Object, java.lang.String)