org.eclipse.viatra.query.runtime.rete.util

Class OrderingCompareAgent<T>

java.lang.Object

org.eclipse.viatra.query.runtime.rete.util.OrderingCompareAgent<T>

public abstract class OrderingCompareAgent<T>
extends java.lang.Object

Comparing agent for an ordering. Terminology: the "preferred" item will register as LESS.

Field Summary

Fields

Modifier and Type	Field and Description
protected T	a
protected T	b

Constructor Summary

Constructors

Constructor and Description
OrderingCompareAgent(T a, T b)

Method Summary

Modifier and Type	Method and Description
int	compare()
protected boolean	consider(int partial)
protected abstract void	doCompare()
protected static int	dontCare()
protected boolean	isUnknown()
protected static int	preferFalse(boolean b1, boolean b2)
protected static <U> int	preferLess(java.lang.Comparable<U> c1, U c2)
protected static <U> int	preferLess(U c1, U c2, java.util.Comparator<U> comp)
protected static <U> int	preferMore(java.lang.Comparable<U> c1, U c2)
protected static <U> int	preferMore(U c1, U c2, java.util.Comparator<U> comp)
protected static int	preferTrue(boolean b1, boolean b2)
protected boolean	swallowBoolean(boolean x)

Methods inherited from class java.lang.Object

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

Field Detail

a

protected T a

b

protected T b

Constructor Detail

OrderingCompareAgent

public OrderingCompareAgent(T a,
                            T b)

Parameters:

a -

b -

Method Detail

doCompare

protected abstract void doCompare()

compare

public int compare()

Returns:

the result

isUnknown

protected boolean isUnknown()

consider

protected boolean consider(int partial)

swallowBoolean

protected boolean swallowBoolean(boolean x)

dontCare

protected static int dontCare()

preferTrue

protected static int preferTrue(boolean b1,
                                boolean b2)

preferFalse

protected static int preferFalse(boolean b1,
                                 boolean b2)

preferLess

protected static <U> int preferLess(java.lang.Comparable<U> c1,
                                    U c2)

preferLess

protected static <U> int preferLess(U c1,
                                    U c2,
                                    java.util.Comparator<U> comp)

preferMore

protected static <U> int preferMore(java.lang.Comparable<U> c1,
                                    U c2)

preferMore

protected static <U> int preferMore(U c1,
                                    U c2,
                                    java.util.Comparator<U> comp)