net.sf.jzeno.echo.components
Class AsyncComponent

java.lang.Object
  nextapp.echo.AbstractComponent
      net.sf.jzeno.echo.components.CustomComponent
          net.sf.jzeno.echo.components.AsyncComponent

All Implemented Interfaces:

java.io.Serializable, BindingTarget, PropertyComponent, RebindableComponent, EventSink, EventSource, Component, FastComponent, FastComponentContainer

Direct Known Subclasses:

AsyncIntegerEditor, AsyncIntegerViewer, AsyncStringViewer

public abstract class AsyncComponent
extends CustomComponent

See Also:

Serialized Form

Nested Class Summary

static class	AsyncComponent.AsyncService
static class	AsyncComponent.PropertyChangeDetector

Field Summary

Fields inherited from interface nextapp.echo.Component

BACKGROUND_CHANGED_PROPERTY, CHILDREN_CHANGED_PROPERTY, ENABLED_CHANGED_PROPERTY, FONT_CHANGED_PROPERTY, FOREGROUND_CHANGED_PROPERTY, IDENTIFIER_CHANGED_PROPERTY, LOCALE_CHANGED_PROPERTY, MODEL_CHANGED_PROPERTY, SELECTABLE_CHANGED_PROPERTY, STYLE_BACKGROUND, STYLE_FONT, STYLE_FOREGROUND, UPDATE_PROPERTY, VISIBLE_CHANGED_PROPERTY

Constructor Summary

AsyncComponent()

AsyncComponent(java.lang.Class beanClass, java.lang.String property, java.lang.String constructionHints)

Method Summary

protected java.lang.String	createUpdateScript(java.lang.String valueScript, boolean immediate)
protected abstract void	renderHtml(java.io.PrintWriter out) Render your component into HTML here.
protected abstract void	renderJavascript(java.io.PrintWriter out) Return some javascript that you which to execute for the current rendering of your component.
protected abstract void	renderJavascriptLibrary(java.io.PrintWriter out) If you whish to use some javascript functions/libraries you can return those in this method.
protected abstract void	update(java.lang.String input) If you want to send information from you client back to the server to update state there, you can use the createUpdateScript function to generate a javascript function-call that will trigger an update.

Methods inherited from class net.sf.jzeno.echo.components.CustomComponent

addValidator, fireActionEvent, fireActionEvent, fireActionEvent, getActionCommand, getBean, getBeanClass, getDecorator, getNullObject, getProperty, getValidationErrors, getValidators, getValue, isBound, isMarkedInvalid, isReadOnly, isRequired, isValid, markInvalid, markValid, preRender, rebind, removeValidator, setActionCommand, setBean, setBeanClass, setDecorator, setNullObject, setProperty, setReadOnly, setRequired, setValue, traceValue, validate

Methods inherited from class nextapp.echo.AbstractComponent

add, add, addHierarchyListener, addPropertyChangeListener, applyStyle, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getClientId, getComponent, getComponentCount, getComponents, getEchoInstance, getFont, getForeground, getIdentifier, getListenerList, getLocale, getParent, indexOf, init, isAncestorOf, isDifferent, isEnabled, isFocused, isRecursivelyVisible, isRegistered, isSelectableForScriptRecorder, isShowing, isVisible, processHierarchyEvent, remove, remove, removeAll, removeHierarchyListener, removePropertyChangeListener, setBackground, setClientId, setEnabled, setFocused, setFont, setForeground, setIdentifier, setLocale, setParent, setRegistered, setSelectableForScriptRecorder, setVisible, update

Methods inherited from class java.lang.Object

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

Constructor Detail

AsyncComponent

public AsyncComponent()

AsyncComponent

public AsyncComponent(java.lang.Class beanClass,
                      java.lang.String property,
                      java.lang.String constructionHints)

Method Detail

createUpdateScript

protected java.lang.String createUpdateScript(java.lang.String valueScript,
                                              boolean immediate)

renderHtml

protected abstract void renderHtml(java.io.PrintWriter out)

Render your component into HTML here.

renderJavascriptLibrary

protected abstract void renderJavascriptLibrary(java.io.PrintWriter out)

If you whish to use some javascript functions/libraries you can return those in this method. If you return null, no javascript will be available to you rendered HTML. The implementation could take the form of returning a string constant, or it could load a .js file from disk, and return the content, or it could load a JavaScript library as a resource from you application classpath, etc...

update

protected abstract void update(java.lang.String input)

If you want to send information from you client back to the server to update state there, you can use the createUpdateScript function to generate a javascript function-call that will trigger an update.

Parameters:

input -

renderJavascript

protected abstract void renderJavascript(java.io.PrintWriter out)

Return some javascript that you which to execute for the current rendering of your component.