Package org.apache.commons.io.comparator
Class DefaultFileComparator
java.lang.Object
org.apache.commons.io.comparator.AbstractFileComparator
org.apache.commons.io.comparator.DefaultFileComparator
- All Implemented Interfaces:
Serializable
,Comparator<File>
Compares two files using the default
File.compareTo(File)
method.
This comparator can be used to sort lists or arrays of files by using the default file comparison.
Example of sorting a list of files using the
DEFAULT_COMPARATOR
singleton instance:
List<File> list = ... ((AbstractFileComparator) DefaultFileComparator.DEFAULT_COMPARATOR).sort(list);
Example of doing a reverse sort of an array of files using the
DEFAULT_REVERSE
singleton instance:
File[] array = ... ((AbstractFileComparator) DefaultFileComparator.DEFAULT_REVERSE).sort(array);
Deprecating Serialization
Serialization is deprecated and will be removed in 3.0.
- Since:
- 1.4
- See Also:
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final Comparator<File>
Singleton default comparator instancestatic final Comparator<File>
Singleton reverse default comparator instanceprivate static final long
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionint
Compares the two files using theFile.compareTo(File)
method.Methods inherited from class org.apache.commons.io.comparator.AbstractFileComparator
sort, sort, toString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface java.util.Comparator
equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong
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Field Details
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serialVersionUID
private static final long serialVersionUID- See Also:
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DEFAULT_COMPARATOR
Singleton default comparator instance -
DEFAULT_REVERSE
Singleton reverse default comparator instance
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Constructor Details
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DefaultFileComparator
public DefaultFileComparator()Constructs a new instance.
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Method Details
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compare
Compares the two files using theFile.compareTo(File)
method.- Specified by:
compare
in interfaceComparator<File>
- Parameters:
file1
- The first file to comparefile2
- The second file to compare- Returns:
- the result of calling file1's
File.compareTo(File)
with file2 as the parameter.
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