Package org.apache.commons.io.filefilter
Class CanReadFileFilter
java.lang.Object
org.apache.commons.io.filefilter.AbstractFileFilter
org.apache.commons.io.filefilter.CanReadFileFilter
- All Implemented Interfaces:
- FileFilter,- FilenameFilter,- Serializable,- FileVisitor<Path>,- PathMatcher,- PathFilter,- PathVisitor,- IOFileFilter
This filter accepts 
Files that can be read.
 Example, showing how to print out a list of the current directory's readable files:
Using Classic IO
 File dir = FileUtils.current();
 String[] files = dir.list(CanReadFileFilter.CAN_READ);
 for (String file : files) {
     System.out.println(file);
 }
 
 Example, showing how to print out a list of the current directory's un-readable files:
 File dir = FileUtils.current();
 String[] files = dir.list(CanReadFileFilter.CANNOT_READ);
 for (String file : files) {
     System.out.println(file);
 }
 
 Example, showing how to print out a list of the current directory's read-only files:
 File dir = FileUtils.current();
 String[] files = dir.list(CanReadFileFilter.READ_ONLY);
 for (String file : files) {
     System.out.println(file);
 }
 
 Deprecating Serialization
Serialization is deprecated and will be removed in 3.0.
- Since:
- 1.3
- See Also:
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Field SummaryFieldsModifier and TypeFieldDescriptionstatic final IOFileFilterSingleton instance of readable filterstatic final IOFileFilterSingleton instance of not readable filterstatic final IOFileFilterSingleton instance of read-only filterFields inherited from interface org.apache.commons.io.filefilter.IOFileFilterEMPTY_STRING_ARRAY
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Constructor SummaryConstructors
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Method SummaryModifier and TypeMethodDescriptionbooleanTests to see if the file can be read.accept(Path file, BasicFileAttributes attributes) Tests to see if the file can be read.Methods inherited from class org.apache.commons.io.filefilter.AbstractFileFilteraccept, handle, postVisitDirectory, preVisitDirectory, toString, visitFile, visitFileFailedMethods inherited from class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitMethods inherited from interface org.apache.commons.io.filefilter.IOFileFilterand, matches, negate, or
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Field Details- 
CAN_READSingleton instance of readable filter
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CANNOT_READSingleton instance of not readable filter
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READ_ONLYSingleton instance of read-only filter
 
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Constructor Details- 
CanReadFileFilterprotected CanReadFileFilter()Restrictive constructor.
 
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Method Details- 
acceptTests to see if the file can be read.- Specified by:
- acceptin interface- FileFilter
- Specified by:
- acceptin interface- IOFileFilter
- Overrides:
- acceptin class- AbstractFileFilter
- Parameters:
- file- the File to check.
- Returns:
- trueif the file can be read, otherwise- false.
 
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acceptTests to see if the file can be read.- Specified by:
- acceptin interface- IOFileFilter
- Specified by:
- acceptin interface- PathFilter
- Parameters:
- file- the File to check.
- attributes- the path's basic attributes (may be null).
- Returns:
- trueif the file can be read, otherwise- false.
- Since:
- 2.9.0
 
 
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