com.tonbeller.jpivot.tags
Class StackStateManager

java.lang.Object
  com.tonbeller.jpivot.tags.StackStateManager

All Implemented Interfaces:

StateManager

public class StackStateManager
extends java.lang.Object
implements StateManager

A Stack of states (name/value pairs). For every state name, there is only one value. States with different names are stacked, every name is on the stack only once. Example:

 ps = new StackStateStrategy();
 -- a1 is top of stack:
 ps.setCurrent("A", a1);
 -- replace a1 with a2:
 ps.setCurrent("A", a2);
 -- push b1 on the stack
 ps.setCurrent("B", b1);
 -- stack now contains a2, b1
 -- push c1 on the stack
 ps.setCurrent("C", c1);
 -- pop c1 and b1 and make a3 top of stack
 ps.setCurrent("A", a3);
 -- stack contains a3 only
 

Since:

15.02.2005

Author:

av

Nested Class Summary

Nested classes/interfaces inherited from interface com.tonbeller.jpivot.tags.StateManager

StateManager.State

Constructor Summary

StackStateManager()

Method Summary

void	destroyAll() removes all states
void	destroyByName(java.lang.String name) pops and destroys all states up to and including the named one.
StateLogger	getLogger()
void	initializeAndShow(StateManager.State s) removes all properties from the stack
void	setLogger(StateLogger logger) logger for debug/test
void	showByName(java.lang.String name) pops and destroys all states up to but not including the named one.

Methods inherited from class java.lang.Object

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

Constructor Detail

StackStateManager

public StackStateManager()

Method Detail

initializeAndShow

public void initializeAndShow(StateManager.State s)
                       throws java.lang.Exception

removes all properties from the stack

Specified by:

initializeAndShow in interface StateManager

Throws:

java.lang.Exception

showByName

public void showByName(java.lang.String name)
                throws java.lang.Exception

pops and destroys all states up to but not including the named one. The named state will become the visible one.

Specified by:

showByName in interface StateManager

Throws:

java.lang.Exception

See Also:

destroyByName(java.lang.String)

destroyAll

public void destroyAll()
                throws java.lang.Exception

Description copied from interface: StateManager

removes all states

Specified by:

destroyAll in interface StateManager

Throws:

java.lang.Exception

destroyByName

public void destroyByName(java.lang.String name)
                   throws java.lang.Exception

pops and destroys all states up to and including the named one. If there is another state beneath the named one, that will become the visible one.

Specified by:

destroyByName in interface StateManager

Throws:

java.lang.Exception

See Also:

showByName(java.lang.String)

getLogger

public StateLogger getLogger()

Specified by:

getLogger in interface StateManager

setLogger

public void setLogger(StateLogger logger)

Description copied from interface: StateManager

logger for debug/test

Specified by:

setLogger in interface StateManager