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Java Source Code / Java Documentation » Library » Apache beehive 1.0.2 src » org.apache.beehive.netui.pageflow

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.apache.beehive.netui.pageflow .PageFlowStack

PageFlowStack

public class PageFlowStack implements HttpSessionBindingListener,Serializable(Code)

Stack for keeping track of a series of nested page flows. When a nested page flow is entered, the previous page flow is pushed onto this stack, which is kept in the user session.

This Stack implements the HttpSessionBindingListener which will receive a callback when this is removed from the HttpSession . At this time, any PageFlowController instances stored on the stack will be destroyed using the PageFlowManagedObject.destroy(javax.servlet.http.HttpSession) lifecycle method.

Inner Class :public static class PushedPageFlow implements Serializable

Method Summary
public void	destroy(HttpServletRequest request) Destroy the stack of PageFlowController s that have invoked nested page flows.
void	ensureFailover(HttpServletRequest request, ServletContext servletContext)
ModuleConfig	findActionInStack(String actionPath) Internal (to our framework) method for seeing whether a given action exists in a page flow that is somewhere in the stack.
public static PageFlowStack	get(HttpServletRequest request, ServletContext servletContext) Get the stack of nested page flows for the current user session.
public static PageFlowStack	get(HttpServletRequest request) Get the stack of nested page flows for the current user session.
public static PageFlowStack	get(HttpServletRequest request, ServletContext servletContext, boolean createIfNotExist) Get the stack of nested page flows for the current user session.
public static PageFlowStack	get(HttpServletRequest request, boolean createIfNotExist) Get the stack of nested page flows for the current user session.
Stack	getLegacyStack() Get a stack of PageFlowControllers, not of PushedPageFlows.
public boolean	isEmpty() Tell whether the stack of nested page flows is empty.
public PushedPageFlow	peek() Get the most recently-pushed page flow from the stack of nested page flows in the session.
public PushedPageFlow	pop(HttpServletRequest request) Pop the most recently-pushed page flow from the stack of nested page flows in the session.
PageFlowController	popUntil(HttpServletRequest request, Class stopAt, boolean onlyIfPresent) Pop page flows from the nesting stack until one of the given type is found.
public void	push(PageFlowController pageFlow, HttpServletRequest request) Push a page flow onto the stack of nested page flows in the session.
void	save(HttpServletRequest request)
public int	size() Get the size of the stack of nested page flows.
public String	toString()
public void	valueBound(HttpSessionBindingEvent event) Callback for HttpSessionBindingListener -- should not be invoked directly.
public void	valueUnbound(HttpSessionBindingEvent event) Callback for HttpSessionBindingListener -- should not be invoked directly.

Method Detail

destroy
public void destroy(HttpServletRequest request)(Code)
	Destroy the stack of PageFlowController s that have invoked nested page flows. Parameters: request - the current HttpServletRequest.

ensureFailover
void ensureFailover(HttpServletRequest request, ServletContext servletContext)(Code)

findActionInStack
ModuleConfig findActionInStack(String actionPath)(Code)
	Internal (to our framework) method for seeing whether a given action exists in a page flow that is somewhere in the stack. If so, the page flow's ModuleConfig is returned.

get
public static PageFlowStack get(HttpServletRequest request, ServletContext servletContext)(Code)
	Get the stack of nested page flows for the current user session. Create and store an empty stack if none exists. Parameters: request - the current HttpServletRequest. Parameters: servletContext - the current ServletContext. the stack of nested page flows PushedPageFlows) for the current user session.

get
public static PageFlowStack get(HttpServletRequest request)(Code)
	Get the stack of nested page flows for the current user session. Create and store an empty stack if none exists. PageFlowStack.get(HttpServletRequest,ServletContext) Parameters: request - the current HttpServletRequest. the stack of nested page flows PushedPageFlows) for the current user session.

get
public static PageFlowStack get(HttpServletRequest request, ServletContext servletContext, boolean createIfNotExist)(Code)
	Get the stack of nested page flows for the current user session. Create and store an empty stack if none exists. Parameters: request - the current HttpServletRequest. Parameters: servletContext - the current ServletContext. a PageFlowStack of nested page flows (PageFlowControllers) for the current user session.

get
public static PageFlowStack get(HttpServletRequest request, boolean createIfNotExist)(Code)
	Get the stack of nested page flows for the current user session. Create and store an empty stack if none exists. PageFlowStack.get(HttpServletRequest,ServletContext,boolean) Parameters: request - the current HttpServletRequest a PageFlowStack of nested page flows (PageFlowControllers) for the current user session.

getLegacyStack
Stack getLegacyStack()(Code)
	Get a stack of PageFlowControllers, not of PushedPageFlows.

isEmpty
public boolean isEmpty()(Code)
	Tell whether the stack of nested page flows is empty. `true` if there are no nested page flows on the stack.

peek
public PushedPageFlow peek()(Code)
	Get the most recently-pushed page flow from the stack of nested page flows in the session. a PushedPageFlow that represents the page flow at the top of the stack.

pop
public PushedPageFlow pop(HttpServletRequest request)(Code)
	Pop the most recently-pushed page flow from the stack of nested page flows in the session. Parameters: request - the current HttpServletRequest. a PushedPageFlow that represents the popped page flow.

popUntil
PageFlowController popUntil(HttpServletRequest request, Class stopAt, boolean onlyIfPresent)(Code)
	Pop page flows from the nesting stack until one of the given type is found. the last popped page flow if one of the given type was found, or `null`if none was found.

push
public void push(PageFlowController pageFlow, HttpServletRequest request)(Code)
	Push a page flow onto the stack of nested page flows in the session. Parameters: pageFlow - the page flow to push. Parameters: request - the current HttpServletRequest.

save
void save(HttpServletRequest request)(Code)

size
public int size()(Code)
	Get the size of the stack of nested page flows. the number of page flows that are currently (hidden away) on the stack.

toString
public String toString()(Code)

valueBound
public void valueBound(HttpSessionBindingEvent event)(Code)
	Callback for HttpSessionBindingListener -- should not be invoked directly.

valueUnbound
public void valueUnbound(HttpSessionBindingEvent event)(Code)
	Callback for HttpSessionBindingListener -- should not be invoked directly.

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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