org.apache.tapestry.form
Class Checkbox
java.lang.Object
org.apache.hivemind.impl.BaseLocatable
org.apache.tapestry.AbstractComponent
org.apache.tapestry.form.AbstractFormComponent
org.apache.tapestry.form.Checkbox
- All Implemented Interfaces:
- org.apache.hivemind.Locatable, org.apache.hivemind.LocationHolder, IFormComponent, ValidatableField, IComponent, IRender
public abstract class Checkbox
- extends AbstractFormComponent
- implements ValidatableField
Implements a component that manages an HTML <input type=checkbox> form element. [ Component Reference ]
As of 4.0, this component can be validated.
- Author:
- Howard Lewis Ship, Paul Ferraro
Methods inherited from class org.apache.tapestry.form.AbstractFormComponent |
getAlwaysRenderBodyOnRewind, getCanTakeFocus, getForm, getIdParameter, getName, renderComponent, renderDelegateAttributes, renderDelegatePrefix, renderDelegateSuffix, renderIdAttribute, setClientId, setForm, setName, setName |
Methods inherited from class org.apache.tapestry.AbstractComponent |
addAsset, addBody, addComponent, checkActiveLock, cleanupAfterRender, enterActiveState, finishLoad, finishLoad, format, format, format, format, getAsset, getAssets, getBeans, getBinding, getBindingNames, getBindings, getBody, getBodyCount, getComponent, getComponents, getContainedComponent, getContainer, getExtendedId, getId, getIdPath, getListeners, getMessage, getMessages, getNamespace, getPage, getProperty, getSpecification, isInActiveState, isParameterBound, isRendering, pageEndRender, prepareForRender, render, renderBody, renderInformalParameters, setBinding, setContainedComponent, setContainer, setId, setNamespace, setPage, setProperty, toString |
Methods inherited from class org.apache.hivemind.impl.BaseLocatable |
getLocation, setLocation |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface org.apache.tapestry.IComponent |
addAsset, addBody, addComponent, enterActiveState, finishLoad, getAsset, getAssets, getBeans, getBinding, getBindingNames, getBindings, getComponent, getComponents, getContainedComponent, getContainer, getExtendedId, getId, getIdPath, getListeners, getMessage, getMessages, getNamespace, getPage, getProperty, getSpecification, isRendering, renderBody, setBinding, setContainedComponent, setContainer, setId, setNamespace, setPage, setProperty |
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 |
Checkbox
public Checkbox()
renderFormComponent
protected void renderFormComponent(IMarkupWriter writer,
IRequestCycle cycle)
- Specified by:
renderFormComponent
in class AbstractFormComponent
- See Also:
org.apache.tapestry.form.validator.AbstractRequirableField#renderRequirableFormComponent(org.apache.tapestry.IMarkupWriter,
org.apache.tapestry.IRequestCycle)
rewindFormComponent
protected void rewindFormComponent(IMarkupWriter writer,
IRequestCycle cycle)
- In traditional HTML, many checkboxes would have the same name but different values. Under
Tapestry, it makes more sense to have different names and a fixed value. For a checkbox, we
only care about whether the name appears as a request parameter.
- Specified by:
rewindFormComponent
in class AbstractFormComponent
getValue
public abstract boolean getValue()
setValue
public abstract void setValue(boolean selected)
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()