oracle.javatools.db.diff

Class GenericComparator

java.lang.Object

oracle.javatools.db.diff.GenericComparator

All Implemented Interfaces:

java.util.Comparator<java.lang.Object>

public class GenericComparator
extends java.lang.Object
implements java.util.Comparator<java.lang.Object>

Generic comparator for use comparing lists of objects. Compares using the following rules (in order):

1. If both objects are Comparable, they are compared using the Comparable interface
2. If the object is convertible to a string using the javatools ToStringManager the string representation is compared.
3. toString is used to create a String representation that is then compared.

For non primitive objects, this Comparator is only designed to compare lists that contains objects all of the same class.

When dealing with numbers, a String representation of a number, and its Number representation will equate, as will different Number implementations. i.e. "1", 1 and 1D are all the same to this Comparator, but all number representations will compare in numerical, not alphabetical order so "10" is greater than "2".

Since:

11

Constructor Summary

Constructors

Constructor and Description
GenericComparator()

Method Summary

Modifier and Type	Method and Description
int	compare(java.lang.Object o1, java.lang.Object o2)
boolean	equals(java.lang.Object obj)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

GenericComparator

public GenericComparator()

Method Detail

compare

public int compare(java.lang.Object o1,
                   java.lang.Object o2)

Specified by:

compare in interface java.util.Comparator<java.lang.Object>

equals

public boolean equals(java.lang.Object obj)

Specified by:

equals in interface java.util.Comparator<java.lang.Object>

Overrides:

equals in class java.lang.Object