java.lang.Object
com.fm.rss.comparator.RssItemComparator
com.fm.rss.comparator.rssTitleComparator
- All Implemented Interfaces:
- java.util.Comparator
- public class rssTitleComparator
- extends RssItemComparator
Compares RSS items by title
|
Method Summary |
int |
compare(java.lang.Object o1,
java.lang.Object o2)
Return an integer that is negative, zero or positive depending on whether
the first argument is less than, equal to or greater than the second
according to this ordering. |
boolean |
equals(java.lang.Object o)
Return true if the object is equal to this object. |
rssTitleComparator
public rssTitleComparator()
compare
public int compare(java.lang.Object o1,
java.lang.Object o2)
- Description copied from interface:
java.util.Comparator
- Return an integer that is negative, zero or positive depending on whether
the first argument is less than, equal to or greater than the second
according to this ordering. This method should obey the following
contract:
- if compare(a, b) < 0 then compare(b, a) > 0
- if compare(a, b) throws an exception, so does compare(b, a)
- if compare(a, b) < 0 and compare(b, c) < 0 then compare(a, c)
< 0
- if compare(a, b) == 0 then compare(a, c) and compare(b, c) must
have the same sign
To be consistent with equals, the following additional constraint is
in place:
- if a.equals(b) or both a and b are null, then
compare(a, b) == 0.
Although it is permissible for a comparator to provide an order
inconsistent with equals, that should be documented.
- Specified by:
compare in interface java.util.Comparator- Specified by:
compare in class RssItemComparator
equals
public boolean equals(java.lang.Object o)
- Description copied from interface:
java.util.Comparator
- Return true if the object is equal to this object. To be
considered equal, the argument object must satisfy the constraints
of
Object.equals(), be a Comparator, and impose the
same ordering as this Comparator. The default implementation
inherited from Object is usually adequate.
- Specified by:
equals in interface java.util.Comparator- Specified by:
equals in class RssItemComparator