org.apache.tapestry.form
Class Select

java.lang.Object
  org.apache.hivemind.impl.BaseLocatable
      org.apache.tapestry.AbstractComponent
          org.apache.tapestry.form.AbstractFormComponent
              org.apache.tapestry.form.Select

All Implemented Interfaces:

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

public abstract class Select
extends AbstractFormComponent
implements ValidatableField

Implements a component that manages an HTML <select> form element. The most common situation, using a <select> to set a specific property of some object, is best handled using a PropertySelectioncomponent. [ Component Reference ]

Otherwise, this component is very similar to RadioGroup.

As of 4.0, this component can be validated.

Author:

Howard Lewis Ship, Paul Ferraro

Field Summary

Fields inherited from class org.apache.tapestry.AbstractComponent

_body, _bodyCount

Constructor Summary

Select()

Method Summary

protected void	cleanupAfterRender(IRequestCycle cycle) Invoked by AbstractComponent.render(IMarkupWriter, IRequestCycle)after the component renders.
static Select	get(IRequestCycle cycle)
String	getNextOptionId()
abstract ValidatableFieldSupport	getValidatableFieldSupport() Injected.
abstract boolean	isMultiple()
boolean	isRequired() Returns false.
boolean	isRewinding()
boolean	isSelected(String value)
protected void	prepareForRender(IRequestCycle cycle) Invoked by AbstractComponent.render(IMarkupWriter, IRequestCycle)to prepare the component to render.
protected void	renderFormComponent(IMarkupWriter writer, IRequestCycle cycle) Invoked from AbstractFormComponent.renderComponent(IMarkupWriter, IRequestCycle) to render the component.
protected void	rewindFormComponent(IMarkupWriter writer, IRequestCycle cycle) Invoked from AbstractFormComponent.renderComponent(IMarkupWriter, IRequestCycle) to rewind the component.

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, 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, 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.ValidatableField

getValidators

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

getClientId, getDisplayName, getForm, getName, isDisabled, setName

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, peekClientId, 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

Select

public Select()

Method Detail

get

public static Select get(IRequestCycle cycle)

isMultiple

public abstract boolean isMultiple()

isRewinding

public boolean isRewinding()

getNextOptionId

public String getNextOptionId()

isSelected

public boolean isSelected(String value)

prepareForRender

protected void prepareForRender(IRequestCycle cycle)

Description copied from class: AbstractComponent

Invoked by AbstractComponent.render(IMarkupWriter, IRequestCycle)to prepare the component to render. This implementation sets JavaBeans properties from matching bound parameters. The default implementation of this method is empty.

Overrides:

prepareForRender in class AbstractComponent

See Also:

AbstractComponent.prepareForRender(org.apache.tapestry.IRequestCycle)

cleanupAfterRender

protected void cleanupAfterRender(IRequestCycle cycle)

Description copied from class: AbstractComponent

Invoked by AbstractComponent.render(IMarkupWriter, IRequestCycle)after the component renders.

Overrides:

cleanupAfterRender in class AbstractComponent

See Also:

AbstractComponent.cleanupAfterRender(org.apache.tapestry.IRequestCycle)

renderFormComponent

protected void renderFormComponent(IMarkupWriter writer,
                                   IRequestCycle cycle)

Description copied from class: AbstractFormComponent

Invoked from AbstractFormComponent.renderComponent(IMarkupWriter, IRequestCycle) to render the component.

Specified by:

renderFormComponent in class AbstractFormComponent

See Also:

AbstractFormComponent.renderFormComponent(org.apache.tapestry.IMarkupWriter, org.apache.tapestry.IRequestCycle)

rewindFormComponent

protected void rewindFormComponent(IMarkupWriter writer,
                                   IRequestCycle cycle)

Description copied from class: AbstractFormComponent

Invoked from AbstractFormComponent.renderComponent(IMarkupWriter, IRequestCycle) to rewind the component. If the component is disabled this will not be invoked.

Specified by:

rewindFormComponent in class AbstractFormComponent

See Also:

AbstractFormComponent.rewindFormComponent(org.apache.tapestry.IMarkupWriter, org.apache.tapestry.IRequestCycle)

getValidatableFieldSupport

public abstract ValidatableFieldSupport getValidatableFieldSupport()

Injected.

isRequired

public 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

See Also:

AbstractFormComponent.isRequired()