com.webmethods.caf.faces.data.csp

Class CSPRefreshableContentBaseProvider

java.lang.Object

com.webmethods.caf.faces.bean.BaseFacesBean

com.webmethods.caf.faces.bean.BaseFacesSessionBean

com.webmethods.caf.faces.data.csp.CSPBaseProvider

com.webmethods.caf.faces.data.csp.CSPRefreshableContentBaseProvider

All Implemented Interfaces:

IPageFlowScopeAdapter, IRefreshable, Serializable, EventListener, HttpSessionBindingListener

Direct Known Subclasses:

CSPEFormTemplateProvider, CSPPreviewImageProvider

public abstract class CSPRefreshableContentBaseProvider
extends CSPBaseProvider
implements IRefreshable

Base class for CSP providers that need refresh support and work based on content id.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.webmethods.caf.faces.data.csp.CSPBaseProvider

fRetrievalModule, fSession

Fields inherited from class com.webmethods.caf.faces.bean.BaseFacesSessionBean

fExpireWithPageFlow

Fields inherited from class com.webmethods.caf.faces.bean.BaseFacesBean

DATA_BINDING_CLIENTS, EMPTY_RESOURCES, OUTCOME_ERROR, OUTCOME_OK, resourcesProviders

Constructor Summary

Constructors

Constructor and Description
CSPRefreshableContentBaseProvider()

Method Summary

Modifier and Type	Method and Description
boolean	getNeedRefresh() Returns true when IRefreshable.isAutoRefresh() is on and the result properties need to be refreshed from the data source by executing IRefreshable.refresh() method.
boolean	isAutoRefresh() Returns true if the provider is currenlty in auto-refresh mode
void	setAutoRefresh(boolean autorefresh) Sets auto refresh mode on.
void	setNeedRefresh(boolean needRefresh) Tells the provider that the input parameters have changed and the output results need to be refreshed the next time any output property is requested via IContentProvider.getValue(Object).
boolean	supportsAutoRefresh() Returns true if this content provider supports auto refresh feature.

Methods inherited from class com.webmethods.caf.faces.data.csp.CSPBaseProvider

checkState, getSession, release, setSession

Methods inherited from class com.webmethods.caf.faces.bean.BaseFacesSessionBean

getExpireWithPageFlow, setExpireWithPageFlow, valueBound, valueUnbound

Methods inherited from class com.webmethods.caf.faces.bean.BaseFacesBean

createMethodBinding, createMethodExpression, createValueBinding, createValueExpression, createValueExpression, error, error, error, error, error, getBean, getFacesContext, getLocale, getResourceInputStream, getResources, getResourcesProvider, getRootCause, getStackTrace, getTreeAttribute, isUserInRole, log, log, log, putTreeAttribute, resetDataBindingClients, resolveDataBinding, resolveDataBinding, resolveExpression, setValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.webmethods.caf.faces.data.IRefreshable

refresh

Constructor Detail

CSPRefreshableContentBaseProvider

public CSPRefreshableContentBaseProvider()

Method Detail

supportsAutoRefresh

public boolean supportsAutoRefresh()

Description copied from interface: IRefreshable

Returns true if this content provider supports auto refresh feature.

Specified by:

supportsAutoRefresh in interface IRefreshable

Returns:

true when auto refresh is supported

See Also:

IRefreshable.setAutoRefresh(boolean)

setAutoRefresh

public void setAutoRefresh(boolean autorefresh)
                    throws ContentProviderException

Description copied from interface: IRefreshable

Sets auto refresh mode on. When auto refresh mode is on, the provider calls IRefreshable.getNeedRefresh() to determine whether the refresh needs to be done before returning any result properties. If it returns true, the provider calls IRefreshable.refresh() method to updated the result properties.

Specified by:

setAutoRefresh in interface IRefreshable

Parameters:

autorefresh - true to turn it on

Throws:

ContentProviderException - if auto refresh mode is not supported

See Also:

IRefreshable.supportsAutoRefresh(), IRefreshable.getNeedRefresh(), IRefreshable.setNeedRefresh(boolean)

isAutoRefresh

public boolean isAutoRefresh()

Description copied from interface: IRefreshable

Returns true if the provider is currenlty in auto-refresh mode

Specified by:

isAutoRefresh in interface IRefreshable

Returns:

false if auto-refresh mode is off or not supported

getNeedRefresh

public boolean getNeedRefresh()

Description copied from interface: IRefreshable

Returns true when IRefreshable.isAutoRefresh() is on and the result properties need to be refreshed from the data source by executing IRefreshable.refresh() method.

Implementations may return an accurate value from this method if they can track the changes to the input parameter properties or they may require the clients to call IRefreshable.setNeedRefresh(boolean) explicitely.

Specified by:

getNeedRefresh in interface IRefreshable

Returns:

true when the output properties are not up-to-date with the current input parameters, i.e. IRefreshable.refresh() needs to be executed manually or automatically.

setNeedRefresh

public void setNeedRefresh(boolean needRefresh)

Description copied from interface: IRefreshable

Tells the provider that the input parameters have changed and the output results need to be refreshed the next time any output property is requested via IContentProvider.getValue(Object).

Specified by:

setNeedRefresh in interface IRefreshable

Parameters:

needRefresh - true if the input parameters have changed