de.jstacs.motifDiscovery.history
Class CappedHistory

java.lang.Object
  de.jstacs.motifDiscovery.history.CappedHistory

All Implemented Interfaces:

History, Storable, Cloneable

public class CappedHistory
extends Object
implements History

This class combines a threshold on the number of steps which can be performed with any other History. Using a threshold ensures to converge using any other history.

Author:

Jens Keilwagen

Constructor Summary

CappedHistory(int t, History h)
This constructor creates an instance that allows at most t steps using the history h.

CappedHistory(StringBuffer xml)
This is the constructor for the interface Storable.

Method Summary

void	clear() This method clears the history, i.e. it removes all operations from the history.
CappedHistory	clone() This method returns a deep copy of the instance
boolean	operationAllowed(int... op) Returns true if the specified operation is allowed, i.e. it does not conflict with any operation from the history.
void	operationPerfomed(int... op) This method puts an operation to the history.
StringBuffer	toXML() This method returns an XML representation as StringBuffer of an instance of the implementing class.

Methods inherited from class java.lang.Object

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

Constructor Detail

CappedHistory

public CappedHistory(int t,
                     History h)
              throws CloneNotSupportedException

This constructor creates an instance that allows at most t steps using the history h.

Parameters:

t - the maximal number of steps/operations

h - the underlying history

Throws:

CloneNotSupportedException - is the history h could not be cloned

CappedHistory

public CappedHistory(StringBuffer xml)
              throws NonParsableException

This is the constructor for the interface Storable.

Parameters:

xml - the XML representation as StringBuffer

Throws:

NonParsableException - if the XML representation could not be parsed

Method Detail

toXML

public StringBuffer toXML()

Description copied from interface: Storable

This method returns an XML representation as StringBuffer of an instance of the implementing class.

Specified by:

toXML in interface Storable

Returns:

the XML representation

clone

public CappedHistory clone()
                    throws CloneNotSupportedException

Description copied from interface: History

This method returns a deep copy of the instance

Specified by:

clone in interface History

Overrides:

clone in class Object

Returns:

a deep copy

Throws:

CloneNotSupportedException - if not possible

See Also:

Cloneable, Object.clone()

clear

public void clear()

Description copied from interface: History

This method clears the history, i.e. it removes all operations from the history.

Specified by:

clear in interface History

operationAllowed

public boolean operationAllowed(int... op)

Description copied from interface: History

Returns true if the specified operation is allowed, i.e. it does not conflict with any operation from the history.

Specified by:

operationAllowed in interface History

Parameters:

op - the operation to be tested

Returns:

true if the specified operation is allowed

operationPerfomed

public void operationPerfomed(int... op)

Description copied from interface: History

This method puts an operation to the history.

Specified by:

operationPerfomed in interface History

Parameters:

op - the performed operation