Package org.apache.commons.io.comparator
Class CompositeFileComparator
java.lang.Object
org.apache.commons.io.comparator.CompositeFileComparator
- All Implemented Interfaces:
- Serializable,- Comparator<File>
Compare two files using a set of delegate file 
Comparator.
 This comparator can be used to sort lists or arrays of files by combining a number of other comparators.
Example of sorting a list of files by type (directory or file) and then by name:
       CompositeFileComparator comparator = new CompositeFileComparator(
           DirectoryFileComparator.DIRECTORY_COMPARATOR,
           NameFileComparator.NAME_COMPARATOR);
       List<File> list = ...
       comparator.sort(list);
 
 Deprecating Serialization
Serialization is deprecated and will be removed in 3.0.
- Since:
- 2.0
- See Also:
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Constructor SummaryConstructorsConstructorDescriptionCompositeFileComparator(Iterable<Comparator<File>> delegates) Constructs a composite comparator for the set of delegate comparators.CompositeFileComparator(Comparator<File>... delegates) Constructs a composite comparator for the set of delegate comparators.
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Method SummaryMethods inherited from class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitMethods inherited from interface java.util.Comparatorequals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong
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Constructor Details- 
CompositeFileComparatorConstructs a composite comparator for the set of delegate comparators.- Parameters:
- delegates- The delegate file comparators
 
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CompositeFileComparatorConstructs a composite comparator for the set of delegate comparators.- Parameters:
- delegates- The delegate file comparators
 
 
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Method Details- 
compareCompares the two files using delegate comparators.- Specified by:
- comparein interface- Comparator<File>
- Parameters:
- file1- The first file to compare
- file2- The second file to compare
- Returns:
- the first non-zero result returned from the delegate comparators or zero.
 
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toStringString representation of this file comparator.- Returns:
- String representation of this file comparator
 
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sortSorts an array of files.This method uses Arrays.sort(Object[], Comparator)and returns the original array.- Parameters:
- files- The files to sort, may be null.
- Returns:
- The sorted array.
- Since:
- 2.0
 
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sortSorts a List of files.This method uses List.sort(Comparator)and returns the original list.- Parameters:
- files- The files to sort, may be null.
- Returns:
- The sorted list.
- Since:
- 2.0
 
 
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