jeops.conflict
Class ConflictSetElement

java.lang.Object
  |
  +--jeops.conflict.ConflictSetElement

public class ConflictSetElement

extends java.lang.Object

An element present in the conflict set.

Version:

0.02 07 Apr 2000 The local declarations are now stored as a two-dimensional array, which stores their dependencies with the regular declarations.

Author:

Carlos Figueira Filho (csff@cin.ufpe.br)

Field Summary

private java.lang.Object[]	objects The objects bound to the declared variables.
private int	ruleIndex The index of the fireable rule.
private long	timestamp A timestamp of this element.

Constructor Summary

ConflictSetElement(int ruleIndex, java.lang.Object[] objects)
Class constructor.

Method Summary

private static boolean	compareArrays(java.lang.Object[] array1, java.lang.Object[] array2) Auxiliar method used to compare two arrays of objects.
boolean	equals(java.lang.Object obj) Compares this object with the given one.
java.lang.Object[]	getObjects() Returns the objects bound to the declared variables.
int	getRuleIndex() Returns the index of the fireable rule.
long	getTimestamp() Returns the timestamp of this element.
int	hashCode() Returns a hash code for this object.
boolean	isDeclared(java.lang.Object obj) Checks whether a given object is one of the objects bound to the declared variables in this element.
java.lang.String	toString() Returns a string representation of this object.

Methods inherited from class java.lang.Object

, clone, finalize, getClass, notify, notifyAll, registerNatives, wait, wait, wait

Field Detail

ruleIndex

private int ruleIndex

The index of the fireable rule.

objects

private java.lang.Object[] objects

The objects bound to the declared variables.

timestamp

private long timestamp

A timestamp of this element. Useful for conflict resolution policies based on object recency.

Constructor Detail

ConflictSetElement

public ConflictSetElement(int ruleIndex,
                          java.lang.Object[] objects)

Class constructor.

Parameters:

ruleIndex - the index of the fireable rule.

objects - the objects bound to the declared variables.

Method Detail

compareArrays

private static boolean compareArrays(java.lang.Object[] array1,
                                     java.lang.Object[] array2)

Auxiliar method used to compare two arrays of objects.

Parameters:

array1 - the first array to be compared.

array2 - the second array to be compared.

Returns:

true if all elements of the arrays are equals; false otherwise.

equals

public boolean equals(java.lang.Object obj)

Compares this object with the given one.

Overrides:

equals in class java.lang.Object

Parameters:

obj - the object to be compared

Returns:

true if the two objects represent the same conflict set element; false otherwise.

getObjects

public java.lang.Object[] getObjects()

Returns the objects bound to the declared variables.

Returns:

the objects bound to the declared variables.

getRuleIndex

public int getRuleIndex()

Returns the index of the fireable rule.

Returns:

the index of the fireable rule.

getTimestamp

public long getTimestamp()

Returns the timestamp of this element.

Returns:

the timestamp of this element.

hashCode

public int hashCode()

Returns a hash code for this object.

Overrides:

hashCode in class java.lang.Object

Returns:

a hash code for this object.

isDeclared

public boolean isDeclared(java.lang.Object obj)

Checks whether a given object is one of the objects bound to the declared variables in this element.

Parameters:

obj - the object to be checked.

Returns:

true if the given object bound to one of the declared variables in this element; false otherwise.

toString

public java.lang.String toString()

Returns a string representation of this object. Useful for debugging.

Overrides:

toString in class java.lang.Object

Returns:

a string representation of this object.