ajanta.pattern
Class Pattern

java.lang.Object
  |
  +--ajanta.pattern.Pattern

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable

Direct Known Subclasses:

ItinEntry, PatternCollection

public abstract class Pattern

extends java.lang.Object

implements java.lang.Cloneable, java.io.Serializable

Pattern is a abstract class. Every pattern is associated with an action that the agent performs at the host it visits. This is overridden to specialize the action.

See Also:

Serialized Form

Field Summary

ajanta.util.MethodSpec	action MethodSpec of the action that an agent perform on a host
static int	DONE Pattern action was successfuly completed
static int	FAILED Pattern action failed due to some reason
static int	NOTDONE Pattern action is yet to be performed
int	status Current status of the pattern

Constructor Summary

Pattern()

Method Summary

java.lang.String	getName()
protected abstract int	next(ajanta.server.AgentEnv host) The pattern traversal is determined by the abstarct method next.
abstract void	print() It prints inforamtion about the pattern i.e its status, destination server etc
protected abstract void	reset() It reset the current state of the pattern to initial state
protected abstract void	scan() It is used to scan the pattern
void	setName(java.lang.String name) It sets the name of the pattern to the name passed as argument

Methods inherited from class java.lang.Object

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

Field Detail

DONE

public static final int DONE

Pattern action was successfuly completed

See Also:

Constant Field Values

NOTDONE

public static final int NOTDONE

Pattern action is yet to be performed

See Also:

Constant Field Values

FAILED

public static final int FAILED

Pattern action failed due to some reason

See Also:

Constant Field Values

status

public int status

Current status of the pattern

action

public ajanta.util.MethodSpec action

MethodSpec of the action that an agent perform on a host

Constructor Detail

Pattern

public Pattern()

Method Detail

next

protected abstract int next(ajanta.server.AgentEnv host)
                     throws java.net.UnknownHostException

The pattern traversal is determined by the abstarct method next. It captures the notion of next hop in the migration path of the agent. Each pattern has its own semantics to determine the next hop

java.net.UnknownHostException

reset

protected abstract void reset()

It reset the current state of the pattern to initial state

scan

protected abstract void scan()

It is used to scan the pattern

print

public abstract void print()

It prints inforamtion about the pattern i.e its status, destination server etc

setName

public void setName(java.lang.String name)

It sets the name of the pattern to the name passed as argument

getName

public java.lang.String getName()

Returns:

If the name is not null it returns the name of pattern else Agent