org.apache.commons.collections.comparators
Class TransformingComparator
java.lang.Objectorg.apache.commons.collections.comparators.TransformingComparator
- Comparator
public class TransformingComparator
implements Comparator
Decorates another Comparator with transformation behavior. That is, the
return value from the transform operation will be passed to the decorated
compare method.
- Commons Collections 2.0 (?)
int | compare(Object obj1, Object obj2)- Returns the result of comparing the values from the transform operation.
|
decorated
protected Comparator decorated
The decorated comparator.
transformer
protected Transformer transformer
The transformer being used.
TransformingComparator
public TransformingComparator(Transformer transformer)
transformer - what will transform the arguments to compare
TransformingComparator
public TransformingComparator(Transformer transformer,
Comparator decorated) Constructs an instance with the given Transformer and Comparator.
transformer - what will transform the arguments to comparedecorated - the decorated Comparator
compare
public int compare(Object obj1,
Object obj2) Returns the result of comparing the values from the transform operation.
obj1 - the first object to transform then compareobj2 - the second object to transform then compare
- negative if obj1 is less, positive if greater, zero if equal
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