File	Doc	Category	Size	Date	Package
RegexFileFilter.java	API Doc	Android 1.5 API	4208	Wed May 06 22:42:46 BST 2009	org.apache.commons.io.filefilter

RegexFileFilter

• java.lang.Object
  • org.apache.commons.io.filefilter.AbstractFileFilter

File dir = new File(".");
FileFilter fileFilter = new RegexFileFilter("^.*[tT]est(-\\d+)?\\.java$");
File[] files = dir.listFiles(fileFilter);
for (int i = 0; i < files.length; i++) {
System.out.println(files[i]);
}

Fields Summary
private final Pattern	pattern The regular expression pattern that will be used to match filenames

Constructors Summary
public RegexFileFilter(String pattern) Construct a new regular expression filter. param pattern regular string expression to match throws IllegalArgumentException if the pattern is null if (pattern == null) { throw new IllegalArgumentException("Pattern is missing"); } this.pattern = Pattern.compile(pattern);
public RegexFileFilter(String pattern, IOCase caseSensitivity) Construct a new regular expression filter with the specified flags case sensitivity. param pattern regular string expression to match param caseSensitivity how to handle case sensitivity, null means case-sensitive throws IllegalArgumentException if the pattern is null if (pattern == null) { throw new IllegalArgumentException("Pattern is missing"); } int flags = 0; if (caseSensitivity != null && !caseSensitivity.isCaseSensitive()) { flags = Pattern.CASE_INSENSITIVE; } this.pattern = Pattern.compile(pattern, flags);
public RegexFileFilter(String pattern, int flags) Construct a new regular expression filter with the specified flags. param pattern regular string expression to match param flags pattern flags - e.g. {@link Pattern#CASE_INSENSITIVE} throws IllegalArgumentException if the pattern is null if (pattern == null) { throw new IllegalArgumentException("Pattern is missing"); } this.pattern = Pattern.compile(pattern, flags);
public RegexFileFilter(Pattern pattern) Construct a new regular expression filter for a compiled regular expression param pattern regular expression to match throws IllegalArgumentException if the pattern is null if (pattern == null) { throw new IllegalArgumentException("Pattern is missing"); } this.pattern = pattern;

Methods Summary
public boolean	accept(java.io.File dir, java.lang.String name) Checks to see if the filename matches one of the regular expressions. param dir the file directory param name the filename return true if the filename matches one of the regular expressions return (pattern.matcher(name).matches());