hades.symbols
Class SymbolManager

java.lang.Object
  hades.symbols.SymbolManager

All Implemented Interfaces:

java.io.Serializable

public class SymbolManager

extends java.lang.Object

implements java.io.Serializable

SymbolManager: a singleton class to manage the loading and caching of HADES SimObject's Symbols.

See Also:

Serialized Form

Method Summary

java.util.Enumeration	elements() elements(): return an Enumeration of all FigObjects in this SymbolManager
void	flushSymbolCache() flush the current Symbol's Cache.
Symbol	getSymbol(SimObject parent) the default method to construct a Symbol for SimObject parent located at the origin (0,0).
static SymbolManager	getSymbolManager() accessor method to the singleton SymbolManager
java.util.Enumeration	keys()
void	message(java.lang.String msg)
void	setDebug(boolean debug) set debug on/off
java.lang.String	toString() toString() - the usual info method

Methods inherited from class java.lang.Object

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

Method Detail

getSymbolManager

public static SymbolManager getSymbolManager()

accessor method to the singleton SymbolManager

getSymbol

public Symbol getSymbol(SimObject parent)

the default method to construct a Symbol for SimObject parent located at the origin (0,0). This method will put the constructed Symbol into an internal Hashtable, to avoid reparsing the Symbol description for subsequent calls to the same Symbol.

Currently, also unique Symbols, i.e. Symbols whose SimObjects return 'needsDynamicObject()' true, are entered into the Hashtable. It could be argued to construct and return those Symbols directly.

elements

public java.util.Enumeration elements()

elements(): return an Enumeration of all FigObjects in this SymbolManager

keys

public java.util.Enumeration keys()

flushSymbolCache

public void flushSymbolCache()

flush the current Symbol's Cache. You may have to call this method after you changed the graphical representation of some SimObjects and want new instances of that class to be displayed with their new Symbol.

Note, however, that this method won't change the appearance of instances already created!

setDebug

public void setDebug(boolean debug)

set debug on/off

message

public void message(java.lang.String msg)

toString

public java.lang.String toString()

toString() - the usual info method