com.pervasive.datarush.io

Class UnixStyleGlobbing

java.lang.Object

com.pervasive.datarush.io.UnixStyleGlobbing

public class UnixStyleGlobbing
extends Object

Provides UNIX-style globbing over paths. This class is intended for use in implementing file systems. Globbing is performed by breadth-first recursive decent over the file system, applying an appropriate filter at each level.

A limited form of UNIX file globbing is supported. The standard wildcards '*' and '?' may be used, as may character sets (delimited by '[' and ']'). Alternations - {a,b,c} for example - are supported, but alternatives may not span directories. That is, {a/b,c} is not valid.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	UnixStyleGlobbing.GlobDefinition Provides information for performing globbing.

Constructor Summary

Constructors

Constructor and Description
UnixStyleGlobbing(FileSystem fs, UnixStyleGlobbing.GlobDefinition glob) Constructs a globber for the specified file system using the defined globbing.

Method Summary

Modifier and Type	Method and Description
List<PathDetails>	findMatches() Returns paths that match defined glob pattern.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UnixStyleGlobbing

public UnixStyleGlobbing(FileSystem fs,
                         UnixStyleGlobbing.GlobDefinition glob)

Constructs a globber for the specified file system using the defined globbing.

Parameters:

fs - the file system to which globbing is applied

glob - the matching pattern to use

Method Detail

findMatches

public List<PathDetails> findMatches()
                              throws IOException

Returns paths that match defined glob pattern.

Throws:

IOException - thrown if an I/O error occurs accessing paths