GenericPortletBean (Spring Framework API 2.0) - Spring Framework 2.0.5 API 文档英文版

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org.springframework.web.portlet
Class GenericPortletBean

java.lang.Object
  javax.portlet.GenericPortlet
      org.springframework.web.portlet.GenericPortletBean

All Implemented Interfaces:: Portlet, PortletConfig

Direct Known Subclasses:: FrameworkPortlet

public abstract class GenericPortletBean
extends GenericPortlet
extends GenericPortlet

Simple extension of javax.portlet.GenericPortlet that treats its config parameters as bean properties.

A very handy superclass for any type of portlet. Type conversion is automatic. It is also possible for subclasses to specify required properties.

This portlet leaves request handling to subclasses, inheriting the default behaviour of GenericPortlet (doDispatch, processAction, etc).

This portlet superclass has no dependency on a Spring application context, in contrast to the FrameworkPortlet class which loads its own context.

Since:: 2.0
Author:: William G. Thompson, Jr., John A. Lewis, Juergen Hoeller
See Also:: addRequiredProperty(java.lang.String), initPortletBean(), GenericPortlet.doDispatch(javax.portlet.RenderRequest, javax.portlet.RenderResponse), GenericPortlet.processAction(javax.portlet.ActionRequest, javax.portlet.ActionResponse), FrameworkPortlet

Field Summary

protected Log logger
          Logger available to subclasses

Constructor Summary

GenericPortletBean()


Method Summary

protected void addRequiredProperty(String property)
          Subclasses can invoke this method to specify that this property (which must match a JavaBean property they expose) is mandatory, and must be supplied as a config parameter.

PortletContext getPortletContext()
          Overridden method that simply returns null when no PortletConfig set yet.

String getPortletName()
          Overridden method that simply returns null when no PortletConfig set yet.

void init()
          Map config parameters onto bean properties of this portlet, and invoke subclass initialization.

protected void initBeanWrapper(BeanWrapper bw)
          Initialize the BeanWrapper for this GenericPortletBean, possibly with custom editors.

protected void initPortletBean()
          Subclasses may override this to perform custom initialization.

Methods inherited from class javax.portlet.GenericPortlet

destroy, doDispatch, doEdit, doHelp, doView, getInitParameter, getInitParameterNames, getPortletConfig, getResourceBundle, getTitle, init, processAction, render

Methods inherited from class java.lang.Object

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

Field Summary
`protected Log`	`logger` Logger available to subclasses

Constructor Summary
`GenericPortletBean()`

Method Summary
`protected void`	`addRequiredProperty(String property)` Subclasses can invoke this method to specify that this property (which must match a JavaBean property they expose) is mandatory, and must be supplied as a config parameter.
`PortletContext`	`getPortletContext()` Overridden method that simply returns `null` when no PortletConfig set yet.
`String`	`getPortletName()` Overridden method that simply returns `null` when no PortletConfig set yet.
`void`	`init()` Map config parameters onto bean properties of this portlet, and invoke subclass initialization.
`protected void`	`initBeanWrapper(BeanWrapper bw)` Initialize the BeanWrapper for this GenericPortletBean, possibly with custom editors.
`protected void`	`initPortletBean()` Subclasses may override this to perform custom initialization.

Methods inherited from class javax.portlet.GenericPortlet
`destroy, doDispatch, doEdit, doHelp, doView, getInitParameter, getInitParameterNames, getPortletConfig, getResourceBundle, getTitle, init, processAction, render`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

logger

protected final Log logger

Logger available to subclasses

Constructor Detail

GenericPortletBean

public GenericPortletBean()

Method Detail

addRequiredProperty

protected final void addRequiredProperty(String property)

Subclasses can invoke this method to specify that this property (which must match a JavaBean property they expose) is mandatory, and must be supplied as a config parameter. This method would normally be called from a subclass constructor.

Parameters:: property - name of the required property

init

public final void init()
                throws PortletException

Map config parameters onto bean properties of this portlet, and invoke subclass initialization.

Overrides:: init in class GenericPortlet

Throws:: PortletException - if bean properties are invalid (or required properties are missing), or if subclass initialization fails.

initBeanWrapper

protected void initBeanWrapper(BeanWrapper bw)
                        throws BeansException

Initialize the BeanWrapper for this GenericPortletBean, possibly with custom editors.

Parameters:: bw - the BeanWrapper to initialize
Throws:: BeansException - if thrown by BeanWrapper methods
See Also:: PropertyEditorRegistry.registerCustomEditor(java.lang.Class, java.beans.PropertyEditor)

getPortletName

public final String getPortletName()

Overridden method that simply returns null when no PortletConfig set yet.

Specified by:: getPortletName in interface PortletConfig
Overrides:: getPortletName in class GenericPortlet

See Also:: GenericPortlet.getPortletConfig()

getPortletContext

public final PortletContext getPortletContext()