Class TransformingComparator
- java.lang.Object
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- org.apache.commons.collections.comparators.TransformingComparator
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- All Implemented Interfaces:
java.util.Comparator
@Deprecated(since="2021-04-30") public class TransformingComparator extends java.lang.Object implements java.util.Comparator
Deprecated.Commons Collections 3 is in maintenance mode. Commons Collections 4 should be used instead.Decorates another Comparator with transformation behavior. That is, the return value from the transform operation will be passed to the decoratedcompare
method.- Since:
- Commons Collections 2.0 (?)
- See Also:
Transformer
,ComparableComparator
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Constructor Summary
Constructors Constructor Description TransformingComparator(Transformer transformer)
Deprecated.Constructs an instance with the given Transformer and aComparableComparator
.TransformingComparator(Transformer transformer, java.util.Comparator decorated)
Deprecated.Constructs an instance with the given Transformer and Comparator.
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description int
compare(java.lang.Object obj1, java.lang.Object obj2)
Deprecated.Returns the result of comparing the values from the transform operation.
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Constructor Detail
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TransformingComparator
public TransformingComparator(Transformer transformer)
Deprecated.Constructs an instance with the given Transformer and aComparableComparator
.- Parameters:
transformer
- what will transform the arguments tocompare
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TransformingComparator
public TransformingComparator(Transformer transformer, java.util.Comparator decorated)
Deprecated.Constructs an instance with the given Transformer and Comparator.- Parameters:
transformer
- what will transform the arguments tocompare
decorated
- the decorated Comparator
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Method Detail
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compare
public int compare(java.lang.Object obj1, java.lang.Object obj2)
Deprecated.Returns the result of comparing the values from the transform operation.- Specified by:
compare
in interfacejava.util.Comparator
- Parameters:
obj1
- the first object to transform then compareobj2
- the second object to transform then compare- Returns:
- negative if obj1 is less, positive if greater, zero if equal
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