com.irs.jam
Class NextFactAction

java.lang.Object
  |
  +--com.irs.jam.Action
        |
        +--com.irs.jam.WorldModelAction
              |
              +--com.irs.jam.NextFactAction

All Implemented Interfaces:

java.io.Serializable

public class NextFactAction

extends WorldModelAction

implements java.io.Serializable

A built-in JAM primitive action for binding plan variables with world model entries and providing a means for access to ALL of the matching relations rather than just one as RETRIEVE does.

See Also:

Serialized Form

Fields inherited from class com.irs.jam.WorldModelAction

_interpreter, _relation

Fields inherited from class com.irs.jam.Action

_actType, ACT_ACHIEVE, ACT_ASSERT, ACT_ASSIGN, ACT_CANNOT_EXECUTE, ACT_FACT, ACT_FAIL, ACT_FAILED, ACT_GOAL_ACTION, ACT_LOAD, ACT_MAINTAIN, ACT_OBJECT, ACT_PARSE, ACT_PERFORM, ACT_POST, ACT_PRIMITIVE, ACT_QUERY, ACT_RETRACT, ACT_RETRIEVE, ACT_SUCCEEDED, ACT_TEST, ACT_UNDEFINED, ACT_UNPOST, ACT_UPDATE, ACT_WAIT

Method Summary

int	execute(Binding b, Goal currentGoal) Return the next matching WM relation
void	format(java.io.PrintStream s, Binding b) Output information to the stream in an in-line manner.
boolean	isExecutableAction()

Methods inherited from class com.irs.jam.WorldModelAction

getInterpreter, getRelation

Methods inherited from class com.irs.jam.Action

getName, getTraceFile, getTraceLine, getType, setTrace, setTraceFile, setTraceLine

Methods inherited from class java.lang.Object

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

Method Detail

isExecutableAction

public boolean isExecutableAction()

Overrides:

isExecutableAction in class Action

execute

public int execute(Binding b,
                   Goal currentGoal)

Return the next matching WM relation

Overrides:

execute in class WorldModelAction

format

public void format(java.io.PrintStream s,
                   Binding b)

Output information to the stream in an in-line manner.

Overrides:

format in class Action