org.apache.myfaces.trinidaddemo.composite
Class DateField

java.lang.Object
  javax.faces.component.UIComponent
      org.apache.myfaces.trinidad.component.UIXComponent
          org.apache.myfaces.trinidad.component.UIXComponentBase
              org.apache.myfaces.trinidad.component.UIXValue
                  org.apache.myfaces.trinidad.component.UIXEditableValue
                      org.apache.myfaces.trinidaddemo.composite.DateField

All Implemented Interfaces:

javax.faces.component.EditableValueHolder, javax.faces.component.NamingContainer, javax.faces.component.StateHolder, javax.faces.component.ValueHolder

public class DateField
extends UIXEditableValue
implements javax.faces.component.NamingContainer

An experiment in building a composite component. Some basic principles:

• We're a NamingContainer, so our children won't show up in findComponent() calls.
• The child components get re-created on each pass through the system; this means seeing if they exist in both Apply Request Values (processDecodes) and Render Response (encodeBegin()), and marking the components transient so they don't get saved.
• The model is the tricky part: instead of using real ValueBindings on the children, I let them use local values, and then manully transfer over their local values into an overall "local value" during validate(). Unfortunately, using ValueBindings to automate the transfer wouldn't quite work, since the transfer wouldn't happen 'til Update Model, which is too late to preserve the semantics of an editable value component in JSF.
• Apply Request Values and Update Model don't need to do anything special for the children; they just run as needed.

Field Summary

Fields inherited from class org.apache.myfaces.trinidad.component.UIXEditableValue

COMPONENT_FAMILY, COMPONENT_TYPE, CONVERSION_MESSAGE_ID, IMMEDIATE_KEY, LOCAL_VALUE_SET_KEY, REQUIRED_KEY, REQUIRED_MESSAGE_DETAIL_KEY, REQUIRED_MESSAGE_ID, SUBMITTED_VALUE_KEY, TYPE, VALID_KEY, VALIDATOR_KEY, VALIDATORS_KEY, VALUE_CHANGE_LISTENER_KEY

Fields inherited from class org.apache.myfaces.trinidad.component.UIXValue

CONVERTER_KEY, VALUE_KEY

Fields inherited from class org.apache.myfaces.trinidad.component.UIXComponentBase

BINDING_KEY, ID_KEY, RENDERED_KEY, RENDERER_TYPE_KEY, TRANSIENT_KEY

Fields inherited from interface javax.faces.component.NamingContainer

SEPARATOR_CHAR

Constructor Summary

DateField()

Method Summary

void	encodeBegin(javax.faces.context.FacesContext context)
void	encodeChildren(javax.faces.context.FacesContext context)
boolean	getRendersChildren()
void	processDecodes(javax.faces.context.FacesContext context)
void	validate(javax.faces.context.FacesContext context)

Methods inherited from class org.apache.myfaces.trinidad.component.UIXEditableValue

addValidator, addValueChangeListener, broadcast, compareValues, getBeanType, getConvertedValue, getFamily, getRequiredMessageDetail, getRequiredMessageKey, getSubmittedValue, getValidator, getValidators, getValueChangeListener, getValueChangeListeners, isEmpty, isImmediate, isLocalValueSet, isRequired, isValid, processUpdates, processValidators, removeValidator, removeValueChangeListener, resetValue, setImmediate, setLocalValueSet, setRequired, setRequiredMessageDetail, setSubmittedValue, setValid, setValidator, setValueChangeListener, updateModel, validateValue

Methods inherited from class org.apache.myfaces.trinidad.component.UIXValue

getConverter, getLocalValue, getValue, setConverter, setValue

Methods inherited from class org.apache.myfaces.trinidad.component.UIXComponentBase

addAttributeChange, addAttributeChangeListener, addFacesListener, broadcastToMethodBinding, createFacesBean, decode, decodeChildren, decodeChildrenImpl, encodeAll, encodeEnd, findComponent, getAttributeChangeListener, getAttributeChangeListeners, getAttributes, getBooleanProperty, getChildCount, getChildren, getClientId, getFacesBean, getFacesContext, getFacesListeners, getFacet, getFacetCount, getFacetNames, getFacets, getFacetsAndChildren, getId, getIntProperty, getLifecycleRenderer, getLocalClientId, getParent, getProperty, getPropertyKey, getRenderer, getRendererType, getValueBinding, isRendered, isTransient, markInitialState, processRestoreState, processSaveState, queueEvent, removeAttributeChangeListener, removeFacesListener, restoreState, saveState, setAttributeChangeListener, setBooleanProperty, setId, setIntProperty, setParent, setProperty, setRendered, setRendererType, setTransient, setValueBinding, toString, updateChildren, updateChildrenImpl, validateChildren, validateChildrenImpl

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.faces.component.ValueHolder

getConverter, getLocalValue, getValue, setConverter, setValue

Constructor Detail

DateField

public DateField()

Method Detail

processDecodes

public void processDecodes(javax.faces.context.FacesContext context)

Overrides:

processDecodes in class UIXEditableValue

validate

public void validate(javax.faces.context.FacesContext context)

Overrides:

validate in class UIXEditableValue

encodeBegin

public void encodeBegin(javax.faces.context.FacesContext context)
                 throws IOException

Overrides:

encodeBegin in class UIXComponentBase

Throws:

IOException

encodeChildren

public void encodeChildren(javax.faces.context.FacesContext context)
                    throws IOException

Overrides:

encodeChildren in class UIXComponentBase

Throws:

IOException

getRendersChildren

public boolean getRendersChildren()

Overrides:

getRendersChildren in class UIXComponentBase