org.apache.tapestry.contrib.valid
Class NumericField

java.lang.Object
  org.apache.hivemind.impl.BaseLocatable
      org.apache.tapestry.AbstractComponent
          org.apache.tapestry.form.AbstractFormComponent
              org.apache.tapestry.valid.ValidField
                  org.apache.tapestry.contrib.valid.NumericField

All Implemented Interfaces:

org.apache.hivemind.Locatable, org.apache.hivemind.LocationHolder, IFormComponent, IComponent, IDirectEvent, Component, IRender

public abstract class NumericField
extends ValidField

Backwards compatible version of the 1.0.7 NumericField component.

Parameter	Type	Read / Write	Required	Default	Description
value	Number	R / W	yes		The value to be updated. When the form is submitted, this parameter is only updated if the value is valid. When rendering, a null value will render as the empty string. A value of zero will render normally. When the form is submitted, the type of the binding is used to determine what kind of object to convert the string to.
minimum	Number	R	no		The minimum value accepted for the field.
maximum	Number	R	no		The maximum value accepted for the field.
required	boolean	R	no	false	If true, then a non-null value must be provided. If the field is not required, and a null (all whitespace) value is supplied in the field, then the value parameter is not updated.
displayName	String	R	yes		A textual name for the field that is used when formulating error messages.
type	String	R	yes		The class name used to convert the value entered. See NumberValidator.setValueType(String)

May not contain a body. May have informal parameters.

Since:

1.0.8

Author:

Howard Lewis Ship

See Also:

ValidField

Field Summary

Fields inherited from class org.apache.tapestry.AbstractComponent

_body, _bodyCount

Constructor Summary

NumericField()

Method Summary

abstract Number	getMaximum()
abstract Number	getMinimum()
abstract String	getType()
IValidator	getValidator() Overrides ValidField.getValidator()to construct a validator on the fly.
abstract boolean	isRequired() Returns false.

Methods inherited from class org.apache.tapestry.valid.ValidField

getDisplayName, getValue, isDisabled, isHidden, readValue, renderFormComponent, rewindFormComponent, setValue, updateValue

Methods inherited from class org.apache.tapestry.form.AbstractFormComponent

generateClientId, getCanTakeFocus, getForm, getIdParameter, getName, getRenderBodyOnRewind, peekClientId, renderComponent, renderDelegateAttributes, renderDelegatePrefix, renderDelegateSuffix, setForm, setName, setName

Methods inherited from class org.apache.tapestry.AbstractComponent

addAsset, addBody, addComponent, checkActiveLock, cleanupAfterRender, enterActiveState, equals, finishLoad, finishLoad, getAsset, getAssets, getBeans, getBinding, getBindingNames, getBindings, getBody, getBodyCount, getBoundId, getClientId, getComponent, getComponents, getContainedComponent, getContainedRenderers, getContainer, getEventInvoker, getExtendedId, getId, getIdPath, getInnerRenderers, getListeners, getMessages, getNamespace, getPage, getRenderWorker, getSpecification, getSpecifiedId, getTemplateTagName, hasEvents, hashCode, isInActiveState, isParameterBound, isRendering, isStateful, pageEndRender, prepareForRender, render, renderBody, renderIdAttribute, renderInformalParameters, setBinding, setClientId, setContainedComponent, setContainer, setHasEvents, setId, setNamespace, setPage, setTemplateTagName, toString, triggerEvent

Methods inherited from class org.apache.hivemind.impl.BaseLocatable

getLocation, setLocation

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.tapestry.form.IFormComponent

getClientId

Methods inherited from interface org.apache.tapestry.IComponent

addAsset, addBody, addComponent, enterActiveState, finishLoad, getAsset, getAssets, getBeans, getBinding, getBindingNames, getBindings, getComponent, getComponents, getContainedComponent, getContainer, getEventInvoker, getExtendedId, getId, getIdPath, getListeners, getMessages, getNamespace, getPage, getSpecification, getSpecifiedId, getTemplateTagName, isRendering, renderBody, setBinding, setClientId, setContainedComponent, setContainer, setId, setNamespace, setPage, setTemplateTagName

Methods inherited from interface org.apache.tapestry.IRender

render

Methods inherited from interface org.apache.hivemind.LocationHolder

setLocation

Methods inherited from interface org.apache.hivemind.Locatable

getLocation

Constructor Detail

NumericField

public NumericField()

Method Detail

getMinimum

public abstract Number getMinimum()

getMaximum

public abstract Number getMaximum()

isRequired

public abstract boolean isRequired()

Description copied from class: AbstractFormComponent

Returns false. Subclasses that might be required must override this method. Typically, this involves checking against the component's validators.

Specified by:

isRequired in interface IFormComponent

Overrides:

isRequired in class AbstractFormComponent

getType

public abstract String getType()

getValidator

public IValidator getValidator()

Overrides ValidField.getValidator()to construct a validator on the fly.

Specified by:

getValidator in class ValidField