zeus.actors
Class AbilityDb

java.lang.Object
  java.util.Dictionary
      java.util.Hashtable
          zeus.actors.AbilityDb

All Implemented Interfaces:

java.lang.Cloneable, java.util.Map, java.io.Serializable

Direct Known Subclasses:

OrganisationDb

public class AbilityDb

extends java.util.Hashtable

This class implements the Ability Database component, which stores the acquaintances of the owning agent. Each acquaintance consists of an agent identity and the abilities that agent is believed to possess (these are stored as AbilityDbItem objects).

Every Zeus agent has an AbilityDb instance, a reference to which is stored in its AgentContext object.

Change log ---------- 12-06-01 Added agentName and genSym to facilitate intialisation from extended types. also altered init functions.

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Serialized Form

Nested Class Summary

Nested classes inherited from class java.util.Hashtable

Field Summary

private static int	ACCESS
private static int	ADD
protected java.lang.String	agentName
protected AgentContext	context
private static int	DELETE
private HSet[]	eventMonitor
protected GenSym	gensym
protected java.util.Vector	knownAgents
private static int	MODIFY

Fields inherited from class java.util.Hashtable

Constructor Summary

AbilityDb()

AbilityDb(AgentContext context)

Method Summary

java.util.Vector	abilitiesOf(java.lang.String person)
void	add(AbilityDbItem item)
void	add(java.lang.String type, AbilityDbItem ability_item)
void	add(java.lang.String agent, AbilitySpec ability)
void	add(java.lang.String item, java.util.Vector List)
void	add(java.util.Vector List)
void	addAbilityMonitor(AbilityMonitor monitor, long type)
void	addAbilityMonitor(AbilityMonitor monitor, long event_type, boolean notify_previous)
protected boolean	addItem(java.lang.String name, java.util.Vector List)
void	del(java.lang.String type, AbilityDbItem item)
void	del(java.lang.String agent, AbilitySpec ability)
void	del(java.lang.String item, java.util.Vector List)
java.util.Vector	findAll(AbilitySpec ability)
AbilityDbItem	findOne(AbilitySpec ability)
AgentContext	getAgentContext()
private boolean	member(AbilityDbItem item, java.util.Vector List)
void	modify(AbilityDbItem previousItem, AbilityDbItem newItem)
private void	notifyMonitors(AbilityDbItem ability, int type)
protected java.util.Vector	reduce(java.util.Vector List, AbilitySpec ability)
void	removeAbilityMonitor(AbilityMonitor monitor, long type)

Methods inherited from class java.util.Hashtable

clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, put, putAll, rehash, remove, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

eventMonitor

private HSet[] eventMonitor

ADD

private static final int ADD

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Constant Field Values

MODIFY

private static final int MODIFY

See Also:

Constant Field Values

DELETE

private static final int DELETE

See Also:

Constant Field Values

ACCESS

private static final int ACCESS

See Also:

Constant Field Values

knownAgents

protected java.util.Vector knownAgents

context

protected AgentContext context

gensym

protected GenSym gensym

agentName

protected java.lang.String agentName

Constructor Detail

AbilityDb

public AbilityDb()

AbilityDb

public AbilityDb(AgentContext context)

Method Detail

getAgentContext

public AgentContext getAgentContext()

addItem

protected boolean addItem(java.lang.String name,
                          java.util.Vector List)

member

private boolean member(AbilityDbItem item,
                       java.util.Vector List)

add

public void add(java.lang.String type,
                AbilityDbItem ability_item)

add

public void add(java.lang.String agent,
                AbilitySpec ability)

add

public void add(java.lang.String item,
                java.util.Vector List)

add

public void add(java.util.Vector List)

add

public void add(AbilityDbItem item)

modify

public void modify(AbilityDbItem previousItem,
                   AbilityDbItem newItem)

del

public void del(java.lang.String type,
                AbilityDbItem item)

del

public void del(java.lang.String agent,
                AbilitySpec ability)

del

public void del(java.lang.String item,
                java.util.Vector List)

findOne

public AbilityDbItem findOne(AbilitySpec ability)

findAll

public java.util.Vector findAll(AbilitySpec ability)

abilitiesOf

public java.util.Vector abilitiesOf(java.lang.String person)

reduce

protected java.util.Vector reduce(java.util.Vector List,
                                  AbilitySpec ability)

addAbilityMonitor

public void addAbilityMonitor(AbilityMonitor monitor,
                              long event_type,
                              boolean notify_previous)

addAbilityMonitor

public void addAbilityMonitor(AbilityMonitor monitor,
                              long type)

removeAbilityMonitor

public void removeAbilityMonitor(AbilityMonitor monitor,
                                 long type)

notifyMonitors

private void notifyMonitors(AbilityDbItem ability,
                            int type)