Package org.apache.commons.vfs2.filter
Class RegexFileFilter
java.lang.Object
org.apache.commons.vfs2.filter.RegexFileFilter
- All Implemented Interfaces:
Serializable
,FileFilter
Filters files using supplied regular expression(s).
See java.util.regex.Pattern for regex matching rules.
For example, to retrieve and print all java files where the name matched the regular expression in the current directory:
FileSystemManager fsManager = VFS.getManager(); FileObject dir = fsManager.toFileObject(new File(".")); FileObject[] files = dir.findFiles(new FileFilterSelector(new RegexFileFilter("ˆ.*[tT]est(-\\d+)?\\.java$"))); for (int i = 0; i < files.length; i++) { System.out.println(files[i]); }
- Since:
- 2.4
- See Also:
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Field Summary
Fields -
Constructor Summary
ConstructorsConstructorDescriptionRegexFileFilter
(String pattern) Construct a new regular expression filter.RegexFileFilter
(String pattern, int flags) Construct a new regular expression filter with the specified flags.RegexFileFilter
(String pattern, IOCase caseSensitivity) Construct a new regular expression filter with the specified flags case sensitivity.RegexFileFilter
(Pattern pattern) Construct a new regular expression filter for a compiled regular expression. -
Method Summary
Modifier and TypeMethodDescriptionboolean
accept
(FileSelectInfo fileSelectInfo) Checks to see if the file name matches one of the regular expressions.
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Field Details
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serialVersionUID
private static final long serialVersionUID- See Also:
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PATTERN_IS_MISSING
Exception message when no pattern is given in the constructor.- See Also:
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pattern
The regular expression pattern that will be used to match file names.
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Constructor Details
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RegexFileFilter
Construct a new regular expression filter for a compiled regular expression.- Parameters:
pattern
- regular expression to match - Cannot be null
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RegexFileFilter
Construct a new regular expression filter.- Parameters:
pattern
- regular string expression to match - Cannot be null
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RegexFileFilter
Construct a new regular expression filter with the specified flags.- Parameters:
pattern
- regular string expression to matchflags
- pattern flags - e.g.Pattern.CASE_INSENSITIVE
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RegexFileFilter
Construct a new regular expression filter with the specified flags case sensitivity.- Parameters:
pattern
- regular string expression to match - Cannot be nullcaseSensitivity
- how to handle case sensitivity, null means case-sensitive
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Method Details
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accept
Checks to see if the file name matches one of the regular expressions.- Specified by:
accept
in interfaceFileFilter
- Parameters:
fileSelectInfo
- the File to check- Returns:
- true if the file matches one of the regular expressions
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